JP2004126684A - Graphic display controller and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a graphic display controller and a program which simply and conveniently permit changes in the display of a graph or a graphic. <P>SOLUTION: A CPU, if it detects graph arithmetic processing executing input, performs arithmetic processing for a graph G1B. If a graph generated with the arithmetic processing is a graph G1B, a function expression 211 corresponding to the graph G1B is displayed in a formula display area 21. Then, the CPU 31, if it detects switchover of application, will switch the display on a display screen 501, but it will retain the display of the formula display area 21. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a graphic display control device for displaying a graph and a graphic, and a program for processing the graphic display control device.
[0002]
[Prior art]
2. Description of the Related Art Scientific calculators having a graph display function and a graphic display function have been used for educational sites and for technical calculations of engineers. The scientific calculator incorporates various function calculation programs. For example, by specifying a function expression to be graphed, a graph indicating the function expression can be drawn on a display screen.
[0003]
As one of such scientific calculators, there is known a calculator which displays various icons for controlling the display of graphs and figures on a screen and moves or deforms the graph according to the selected icon. (For example, Patent Document 1; corresponds to all claims).
[0004]
[Patent Document 1]
JP-A-9-282476 (page 3-9, FIG. 6)
[0005]
[Problems to be solved by the invention]
However, in the case of the above-described scientific calculator, icons for instructing movement / deformation of the displayed graph are displayed on the screen. For example, if the graph display function is increased, the number of icons increases accordingly. In order to display icons, it is necessary to enlarge the screen and reduce the display area of graphs and graphics.
[0006]
Furthermore, when a plurality of windows that are linked by the execution of an application are displayed on the screen, when the application is switched, the display of the window disappears. Therefore, the function expression or the like displayed in the window may be processed by another application. could not.
[0007]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a graphic display control device and a program which can easily change the display of graphs and graphics and are easy to use.
[0008]
[Means for Solving the Problems]
In order to solve the above-described problems, the invention according to claim 1 includes a mathematical expression display unit (for example, the mathematical expression display area 21 in FIG. 2; a display unit 38 in FIG. 3) for displaying mathematical expressions, and the switching of applications. In the graphic display control device including a display unit (for example, the graph display area 22 in FIG. 2, the function expression input area 26; the display unit 38 in FIG. 3) which switches to a display screen for the switched application, An arithmetic execution unit (CPU 31 in FIG. 3; step A4 in FIG. 4) for executing a predetermined arithmetic processing on the processing result in response to an operation input when a processing result by the application is displayed on the display unit; Mathematical expression display control means (for example, CPU 31 in FIG. 3; step A5 in FIG. 4) for displaying and controlling the mathematical expression of the execution result by the arithmetic execution means on the mathematical expression display unit; Switching means (for example, CPU 31 in FIG. 3; step A7 in FIG. 4) for switching an application to be displayed on the display unit from a first application to a second application in response to a work input; The display control unit is a display holding unit (for example, the CPU 31 in FIG. 3; a display holding unit) that holds a display of a mathematical expression of an execution result of the calculation execution unit with respect to the application before switching even when the application is switched by the switching unit. It is characterized by having step A9) in FIG.
[0009]
Further, the program according to the present invention is switched in accordance with switching of an application and a mathematical expression display unit (for example, the mathematical expression display area 21 in FIG. 2; the display unit 38 in FIG. 3) for displaying mathematical expressions. The graphic display control device including a display unit (for example, the graph display area 22 in FIG. 2, the function expression input area 26; the display unit 38 in FIG. 3) that switches to a display screen for the application displays the processing result of the first application. An arithmetic execution function (CPU 31 in FIG. 3; step A4 in FIG. 4) for executing a predetermined arithmetic processing on the processing result in response to an operation input when displayed on the display unit; A mathematical expression display control function (for example, CPU 31 in FIG. 3; step A5 in FIG. 4) for displaying and controlling the mathematical expression of the execution result on the mathematical expression display unit, A switching function (for example, CPU 31 in FIG. 3; step A7 in FIG. 4) for switching the application to be displayed on the display unit from the first application to the second application is realized. Even when the application is switched by the switching function, a display holding function (for example, CPU 31 in FIG. 3; step A9 in FIG. 4) that holds the display of the mathematical expression of the execution result of the calculation execution function for the application before switching. ) Is realized.
[0010]
According to the first and seventh aspects of the present invention, it is possible to hold the display of the mathematical expression display unit even when the display of the display unit is switched by switching the application. Therefore, for example, even if the application is switched during the predetermined processing, the display of the mathematical expression generated during the predetermined processing can be maintained, so that the mathematical expression displayed on the mathematical expression display unit can be processed by executing another application. .
[0011]
According to the second aspect of the present invention, a function expression display unit (for example, the function expression input area 26 in FIG. 2; a display unit 38 in FIG. 3) for displaying a plurality of registered function expressions, and a graph display for displaying a graph. (For example, the graph display area 22 in FIG. 2; the display unit 38 in FIG. 3) and a mathematical expression display unit (for example, the mathematical expression display area 21 in FIG. 2; the display unit 38 in FIG. 3) for displaying mathematical expressions. In the display control device, a first operation (for example, CPU 31 of FIG. 3; step B1 of FIG. 7; FIG. 8A) of selecting or specifying a function formula displayed on the function formula display unit and the function formula When a second operation (for example, CPU 31 in FIG. 3; step B3 in FIG. 7; FIG. 8B) for moving the function formula displayed on the display unit to the graph display unit is performed, Graph based on the function expression shifted by the second operation Graph display control means (for example, CPU 31 in FIG. 3; step B5 in FIG. 7) for controlling display on the graph display section, and when a graph is displayed on the graph display section under the control of the graph display control section, And a function expression display control means (for example, CPU 31 in FIG. 3; step B7 in FIG. 7) for controlling the display of the function expression corresponding to the graph on the mathematical expression display section.
[0012]
The program according to the invention of claim 8 displays a function formula display unit (for example, the function formula input area 26 in FIG. 2; a display unit 38 in FIG. 3) for displaying a plurality of registered function formulas, and a graph. A graph display unit (for example, the graph display area 22 of FIG. 2; a display unit 38 of FIG. 3), a mathematical expression display unit for displaying a mathematical expression (for example, the mathematical expression display area 21 of FIG. 2; a display unit 38 of FIG. 3). A first operation (for example, CPU 31 in FIG. 3; step B1 in FIG. 7; FIG. 8 (a)) for selecting or specifying a function formula displayed in the function formula display unit. When a second operation (for example, CPU 31 in FIG. 3; step B3 in FIG. 7; FIG. 8B) for moving the function formula displayed on the function formula display unit to the graph display unit is performed. Based on the function expression moved by the second operation, A graph display control function (for example, CPU 31 in FIG. 3; step B5 in FIG. 7) for controlling display of a graph on the graph display unit, and a graph displayed on the graph display unit by the control of the graph display control function. In addition, a function expression display control function (for example, CPU 31 in FIG. 3; step B7 in FIG. 7) for controlling display of a function expression corresponding to the graph on the mathematical expression display unit is realized.
[0013]
According to the second and eighth aspects of the present invention, the first operation of designating or selecting the function formula displayed on the function formula display unit and moving the designated or selected function formula to the graph display unit. A simple operation of performing two operations, ie, a second operation, and quickly and reliably displaying a graph corresponding to the function expression displayed on the function expression display portion on the graph display portion based on the function expression displayed on the function expression display portion Can be. Therefore, the user can easily display the graph.
[0014]
The invention according to claim 3 is a mathematical expression display unit (for example, the mathematical expression display area 21 in FIG. 2; the display unit 38 in FIG. 3) for displaying mathematical expressions, and a graph display unit (for example, for displaying a graph based on the mathematical expressions). In the graphic display control device having the graph display area 22 of FIG. 2; and the display unit 38 of FIG. 3, a calculation execution for executing a predetermined calculation process on the graph displayed on the graph display unit in response to an operation input Means (for example, CPU 31 in FIG. 3; step C6 in FIG. 10), and mathematical expression display unit control means (for example, FIG. 3 CPU 31; step C9) in FIG.
[0015]
A program according to the ninth aspect of the present invention includes a mathematical expression display unit (for example, the mathematical expression display area 21 in FIG. 2; a display unit 38 in FIG. 3) for displaying mathematical expressions, and a graph display unit for displaying a graph based on the mathematical expressions (For example, the graph display area 22 in FIG. 2; the display unit 38 in FIG. 3) performs a predetermined calculation process on the graph displayed on the graph display unit in response to an operation input. (For example, CPU 31 in FIG. 3; step C6 in FIG. 10), and a mathematical expression display unit control function for adding a command corresponding to the arithmetic processing to the mathematical expression and updating the display content of the mathematical expression display unit ( For example, CPU 31 in FIG. 3 and step C9 in FIG. 10 are realized.
[0016]
According to the third and ninth aspects of the present invention, it is possible to display a command corresponding to the arithmetic processing executed on the graph displayed on the graph display on the mathematical expression display. Therefore, the user can immediately learn the mathematical processing corresponding to the arithmetic processing performed on the graph, and can easily perform the arithmetic processing on the mathematical expression displayed on the mathematical expression display unit.
[0017]
The invention according to claim 4 is a mathematical expression display unit (for example, the mathematical expression display area 21 in FIG. 2; the display unit 38 in FIG. 3) for displaying mathematical expressions, and a graph display unit for displaying a graph and coordinate axes based on the mathematical expressions. For example, in a graphic display control device including the graph display area 22 in FIG. 2 and the display unit 38 in FIG. 3, a first operation (for example, to designate or select a coefficient constituting a mathematical expression displayed on the mathematical expression display unit) (for example, , CPU 31 in FIG. 3, step D5 in FIG. 13, FIG. 14 (c)), and after the first operation, a second operation on a predetermined portion of the coordinate axes displayed on the graph display unit (for example, FIG. (3) CPU 31; step D7 of FIG. 31; FIG. 15 (d)), a registering means (for example, a register for registering a coefficient designated or selected by the first operation in the predetermined portion of the coordinate axis) , Figure CPU 31 of FIG. 13; step D11 of FIG. 13); and, after the coefficients are registered by the registration means, a third operation on the predetermined portion of the coordinate axes (for example, CPU 31 of FIG. 3; step D12 of FIG. 13; FIG. 15). When (e)) is performed, a coefficient changing means (for example, CPU 31 in FIG. 3; step D15 in FIG. 13) for changing the value of the registered coefficient is used. A graph re-display control unit (for example, CPU 31 in FIG. 3; step D16 in FIG. 13; FIG. 15 (f)) for re-displaying the graph displayed on the graph display unit in conjunction with the operation. I have.
[0018]
The program according to claim 10, wherein a mathematical expression display unit (for example, mathematical expression display area 21 in FIG. 2; display unit 38 in FIG. 3) for displaying mathematical expressions, and a graph and coordinate axes based on the mathematical expressions are displayed. A graphic display control device provided with a graph display unit (for example, the graph display area 22 in FIG. 2; the display unit 38 in FIG. 3) for specifying or selecting a coefficient constituting a mathematical expression displayed on the mathematical expression display unit. After the first operation (for example, the CPU 31 in FIG. 3; the step D5 in FIG. 13; FIG. 14C), and the second operation, a second operation is performed on a predetermined part of the coordinate axes displayed on the graph display unit. When an operation (for example, CPU 31 in FIG. 3; step D7 in FIG. 31; FIG. 15D) is performed, the coefficient designated or selected by the first operation is registered in the predetermined portion of the coordinate axis. To climb A function (eg, CPU 31 in FIG. 3; step D11 in FIG. 13) and a third operation (eg, CPU 31 in FIG. 3; FIG. 13) for the predetermined portion of the coordinate axes after the coefficient is registered by the registration function. 15 (e)), a coefficient changing function (for example, CPU 31 in FIG. 3; step D15 in FIG. 13) for changing the value of the registered coefficient; A graph re-display control function (for example, CPU 31 in FIG. 3; step D16 in FIG. 13; FIG. 15 (f)) for re-displaying the graph displayed on the graph display unit in conjunction with the change of the coefficient by the function; Is realized.
[0019]
According to the fourth and tenth aspects of the present invention, the first operation of designating or selecting the coefficients constituting the mathematical expression displayed on the mathematical expression display unit, and after the first operation, displaying on the graph display unit By performing two operations with the second operation on the predetermined part of the displayed coordinate axis, the coefficient of the function expression displayed on the mathematical expression display unit is registered in the predetermined part on the coordinate axis, and then, The value of the registered coefficient is changed by a simple operation of performing a second operation on a predetermined portion of the coordinate axis, and the graph displayed on the graph display unit is redisplayed in conjunction with the change of the coefficient. be able to. Therefore, the user can easily confirm the change in the shape of the graph accompanying the change in the registered coefficient.
[0020]
According to a fifth aspect of the present invention, a function expression display unit (for example, the function expression input area 26 in FIG. 2; a display unit 38 in FIG. 3) for displaying a function expression and a graph display for displaying a graph and coordinate axes. (For example, the graph display area 22 of FIG. 2; the display unit 38 of FIG. 3) of the graphic display control device, the first function for designating or selecting the function formula displayed on the function formula display unit. An operation (for example, CPU 31 in FIG. 3; step E1 in FIG. 17; FIG. 18A), and after the first operation, the function expression designated or selected by the first operation is displayed in the graph display section. When a second operation for moving to (for example, CPU 31 in FIG. 3; step E3 in FIG. 17; FIG. 18B) is performed, a graph based on the designated or selected function formula is displayed. Display control on graph display Display control means (for example, CPU 31 in FIG. 3), and after the first operation on the function expression displayed on the function expression display section, the first operation on the coordinate axis displayed on the graph display section. 3 (for example, the CPU 31 in FIG. 3; the step E8 in FIG. 17; FIG. 18C), the function designated or selected by the first operation on the predetermined portion of the coordinate axis. Registering means for registering an equation (for example, CPU 31 in FIG. 3; step E7 in FIG. 17), and a function equation designated or selected by the first operation is registered in the predetermined portion of the coordinate axis by the registering means. When the third operation is performed later, registered graph display control means (for example, CPU 31 in FIG. 3) for controlling display of a graph based on the registered function formula on the graph display unit. Step E10 in FIG. 17; and FIG. 18 (d)), it is characterized in that it comprises.
[0021]
The program according to claim 11 includes a function expression display unit (for example, the function expression input area 26 in FIG. 2; a display unit 38 in FIG. 3) for displaying a function expression, and a graph display unit (for example, for displaying a graph and coordinate axes). , A graph display area 22 in FIG. 2; a display unit 38 in FIG. 3) for specifying or selecting a function expression displayed in the function expression display unit. For example, CPU 31 in FIG. 3; step E1 in FIG. 17; FIG. 18 (a)), and after the first operation, the function expression designated or selected by the first operation is moved to the graph display unit. When a second operation (for example, CPU 31 in FIG. 3; step E3 in FIG. 17; FIG. 18B) is performed, a graph based on the designated or selected function expression is displayed in the graph. Table to control display in section After the control function (for example, the CPU 31 in FIG. 3) and the first operation on the function expression displayed on the function expression display section, a third operation on a predetermined part of the coordinate axes displayed on the graph display section is performed. When an operation (for example, CPU 31 in FIG. 3; step E8 in FIG. 17; FIG. 18 (c)) is performed, the function specified or selected by the first operation is added to the predetermined portion of the coordinate axis. A registration function for registration (eg, CPU 31 in FIG. 3; step E7 in FIG. 17) and an instruction input for the predetermined portion of the coordinate axes are performed, and the registration function registers a function formula in the predetermined portion. If it has been, the registered graph display control function (for example, the CPU 31 in FIG. 3; the step in FIG. 17) for controlling the display of the graph based on the registered function formula on the graph display unit. 10; it is characterized in that for realizing 18 and (d)), a.
[0022]
According to the fifth and eleventh aspects of the present invention, after the first operation on the function expression displayed on the function expression display section, the third operation on the predetermined part of the coordinate axes displayed on the graph display section is performed. Is established, a function formula specified or selected by the first operation is registered in the predetermined portion of the coordinate axis, and then a third operation is performed on the predetermined portion of the coordinate axis. The display based on the registered function formula can be controlled on the graph display unit. Therefore, the user can quickly and easily display the graph corresponding to the registered function formula by simply performing the third operation on the predetermined portion of the coordinate axis at an arbitrary timing after registering the function formula in the predetermined portion of the coordinate axis. Can be done.
[0023]
According to a sixth aspect of the present invention, there is provided a function expression display unit (for example, the function expression input area 26 in FIG. 2; a display unit 38 in FIG. 3) for displaying a function expression, and a graph display for displaying a graph and coordinate axes. (For example, the graph display area 22 in FIG. 2; the display unit 38 in FIG. 3), a first operation (for example, to designate or select a function formula displayed on the function formula display unit) , CPU 31 in FIG. 3; step F5 in FIG. 20; FIG. 21 (a)) and a second operation (for example, in FIG. 3) for moving the function specified or selected by the first operation to the graph display unit. CPU 31; Step F7 of FIG. 20; FIG. 21 (b)), display control for controlling the display of the graph based on the function expression designated or selected by the first operation on the graph display unit. Means (for example, A registration unit (eg, CPU 31 in FIG. 3; step F4 in FIG. 20) for registering a predetermined arithmetic process by a third operation on a predetermined portion of the coordinate axis; A graph based on a function expression specified or selected by the first operation when the first operation on the function expression displayed on the display unit and the fourth operation on the predetermined portion of the coordinate axis are performed. And a calculation result graph display control means (for example, CPU 31 in FIG. 3; step F13 in FIG. 20; FIG. 21 (c)) for controlling the display of a graph as a result of executing the calculation processing on the graph display unit. It is characterized by having.
[0024]
A program according to a twelfth aspect of the present invention includes a function expression display unit (for example, the function expression input area 26 in FIG. 2; a display unit 38 in FIG. 3) for displaying a function expression, and a graph display unit for displaying a graph and coordinate axes. For example, a graphic display control device including the graph display area 22 in FIG. 2 and the display unit 38 in FIG. 3 performs a first operation of designating or selecting a function expression displayed on the function expression display unit (for example, , CPU 31 in FIG. 3; step F5 in FIG. 20; FIG. 21 (a)), a second operation (for example, in FIG. 3) for moving the function specified or selected by the first operation to the graph display unit. CPU 31; a display control function for controlling display of a graph based on the function formula specified or selected by the first operation in the graph display unit when step F7 in FIG. 20; FIG. 21 (b)) is performed. (For example, A registration function (for example, CPU 31 of FIG. 3; step of FIG. 20) for registering a predetermined arithmetic process by a third operation (for example, CPU 31 of FIG. 3) for a predetermined portion of the coordinate axis. F4), when the first operation on the function expression displayed on the function expression display section and the fourth operation on the predetermined portion of the coordinate axis are performed, the first operation is designated or selected by the first operation. An operation result graph display control function (e.g., CPU 31 in FIG. 3; step F13 in FIG. 20) for controlling display of a graph obtained as a result of performing the arithmetic processing on the graph based on the function formula on the graph display unit. It is characterized by realizing
[0025]
According to the sixth and twelfth aspects of the present invention, after the arithmetic processing is registered in the predetermined portion on the coordinate axis, the designated or selected function formula is assigned to the registered predetermined portion on the coordinate axis. By a simple operation of moving, the arithmetic processing associated with the predetermined portion is executed, and the graph of the executed result can be displayed and controlled on the graph display unit. Therefore, the user can easily execute the arithmetic processing on the graph.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a graphic display control device according to the present invention will be described in detail with reference to FIGS. In the following, a case where the present invention is applied to a scientific calculator having a graph and graphic display function will be described as an example, but embodiments to which the present invention can be applied are not limited thereto.
[0027]
In FIG. 1, a scientific calculator 1 includes an arithmetic unit (not shown) for performing arithmetic processing, operation input keys 11 for inputting numerical values, functions, and arithmetic operations, and directional keys 12 for scrolling and selecting operations on a screen. A display screen 15 for displaying input numerical values and graphs, an input pen 17, and a power supply (not shown) such as a built-in battery or a solar battery are provided. The casing is made of metal or resin, for example, in a card shape.
[0028]
The operation input key 11 and the direction key 12 are operation input means similar to the conventional scientific calculator 1, and can be realized by, for example, a key switch, a touch panel, or the like.
[0029]
The display screen 15 is a portion on which various data necessary for using the scientific calculator 1 are displayed, such as characters, codes, graphs, and the like corresponding to the depression of the operation input keys 11, and characters and figures are displayed by dots. You. The display screen 15 is an element such as an LCD (Liquid Crystal Display) or an ELD (Electronic Luminescent Display), and is realized by a single or a combination of a plurality of elements.
[0030]
Further, the scientific calculator 1 has a slot 16 for a storage medium 160. The storage medium 160 is a storage medium for storing function formula data and the like, and is, for example, a memory card, a hard disk, or the like. The slot 16 is a device in which a storage medium 160 is detachably mounted and data can be read from and written to the storage medium 160, and is appropriately selected according to the type of the storage medium 160.
[0031]
A tablet (touch panel) is integrally formed on the display screen 15 so that a press input by the input pen 17 can be detected.
[0032]
The scientific calculator 1 is provided with various functions such as a calculation function, a graph function, and a program function, and can execute each of the functions described above by selecting an operation mode corresponding to a function to be used. It has become. For example, when a selection operation of the graph mode is performed using the operation input key 11 or the like, the operation mode is set to the graph mode, and a graphic such as a graph can be drawn in a coordinate system based on the set display range.
[0033]
FIG. 2 is a diagram for explaining the display configuration of the display screen 15. The display area of the display screen 15 is divided into a mathematical expression display area 21, a graph display area 22, and a function expression input area 23. The mathematical expression display area 21 displays a function expression corresponding to the graph displayed in the graph display area 22, a mathematical expression generated by an arithmetic processing on the graph, and the like. The function formula input area 26 displays a function formula or the like input by operating the operation input key 11 or the like.
[0034]
In the graph display area 22, a graph G indicating the function expression displayed in the mathematical expression display area 21 or the function expression stored in the internal memory of the scientific electronic calculator 1 or the storage medium 160 is displayed. Note that the x-axis 24 and the y-axis 25 are displayed in the graph display area 22 with the horizontal direction of the graph display area 22 as the x coordinate and the vertical direction as the y coordinate. Further, the graph controllers 23L and 23R are provided at both ends of the x-axis 24, and the graph controllers 23U and 23D are provided at both ends of the y-axis 25 (hereinafter, the graph controllers 23L, 23R, 23U and 23D are collectively referred to as the "graph controller 23"). )) Is displayed.
[0035]
[First Embodiment]
A first embodiment to which the present invention is applied will be described. FIG. 3 is a block diagram showing the configuration of the scientific calculator 1. As shown in FIG. 1, the scientific calculator 1 includes a CPU (Central Processing Unit) 31, a ROM (Read Only Memory) 32, a RAM (Random Access Memory) 33, and an input. It comprises a unit 34, a position detection circuit 35, a tablet 36, a display drive circuit 37, a display unit 38, and a storage medium reading unit 39.
[0036]
The CPU 31 executes a process based on a predetermined program according to the input instruction, and performs an instruction to each functional unit, transfer of data, and the like. Specifically, the CPU 31 reads a program stored in the ROM 32 in response to an operation signal input from the input unit 34 or the tablet 36, and executes processing according to the program. Then, the processing result is stored in the RAM 33, and a display signal for displaying the processing result is output to the display drive circuit 37 as appropriate, so that display information corresponding to the display signal is displayed on the display unit 38.
[0037]
The ROM 32 stores various processing programs related to the operation of the scientific calculator 1 such as various setting processes and various arithmetic processes, applications for implementing various functions of the scientific calculator 1, and the like. Further, a function expression display control program 321 is stored.
[0038]
The function expression display control program 321 is a program for causing the CPU 31 to execute a function expression display control process for maintaining the display state of the mathematical expression display area 21 even when the display screen of the display unit 38 is switched by switching of the application.
[0039]
The RAM 33 includes a memory area that temporarily stores various programs executed by the CPU 31 and data related to the execution of these programs. In particular, a function formula data storage area 331 and a formula data storage area 332 are provided. In the function expression data storage area 331, for example, a function expression required when creating a graph such as a linear function, a quadratic function, a trigonometric function, a circle, etc. is stored. The mathematical expression data storage area 332 stores mathematical expressions generated by performing arithmetic processing on the graph displayed in the graph display area 22. Here, the arithmetic processing includes, for example, a Root processing for obtaining an intersection between the graph and the x-axis, a Tangent processing for obtaining a tangent equation of the graph, a ∫dx processing for performing integration, and the like.
[0040]
The input unit 34 is a means for a user to input a numerical value, an instruction to execute a calculation process, and the like, and corresponds to the operation input key 11 and the direction key 12 in the example of FIG. Then, a signal corresponding to the key pressed by the user is output to the CPU 31. The input unit 34 may further include a pointing device such as a mouse.
[0041]
In addition, the scientific calculator 1 includes a tablet (touch panel) 36 as an input device. The tablet 36 detects a position indicated (contacted) on the display unit 38 by an input pen (corresponding to the input pen 17 shown in FIG. 1), and outputs a signal corresponding to the indicated (contact) position. Device. The position detection circuit 35 connected to the tablet 36 detects the specified position coordinates on the display unit 38 based on the signal input from the tablet 36. By using the tablet 36, the position in the display area of the display unit 38 can be directly designated. In particular, by bringing the input pen 17 into contact with the tablet 36, operations such as tap-in, drag, tap-out, and drop can be realized.
[0042]
Here, the tap-in refers to an operation at the time when the input pen 17 is brought into contact with the display screen 15, and the tap-out refers to an operation to release the input pen 17 from the display screen 15 after the input pen 17 is brought into contact with the display pen 15. . In addition, drag means an operation of sliding the input pen 17 from tap-in to tap-out on the display screen 15, and drop means an operation of tap-out after dragging.
[0043]
The display drive circuit 37 controls the display unit 38 based on a display signal input from the CPU 31 to display various screens. The display unit 38 includes an LCD, an ELD, and the like. Note that the display section 38 corresponds to the display screen 15 shown in FIG. 1 and is formed integrally with the tablet 36.
[0044]
The storage medium reading unit 39 is a functional unit that reads and writes data from and to a storage medium 160 such as a memory card and a hard disk. In FIG. 1, the slot 16 corresponds.
[0045]
FIG. 4 is a flowchart for explaining the operation of the function expression display control process executed by the CPU 31 according to the function expression display control program 321. FIG. 5 is a diagram showing a transition example of a screen displayed on the display unit 38. The flow of the function expression display control process will be described with reference to FIGS.
[0046]
When the graph mode is instructed by the mode switching operation, the CPU 31 starts execution of a predetermined program related to the graph mode, sets the graph mode, and inputs a mathematical expression of the graph to be drawn and a display range. It waits for input of such setting items. Then, as shown in FIG. 4, when detecting the graph execution input (step A1), the CPU 31 performs a graph drawing process according to the function formula selected in the function formula input area 26 and the input setting items (step A2).
[0047]
Next, when detecting the execution input of the graph calculation processing (step A3), the CPU 31 performs the calculation processing on the graph displayed in the graph display area 22 (step A4). Further, the CPU 31 displays the mathematical expression generated by the arithmetic processing in the mathematical expression display area 21 and stores it in the mathematical expression data storage area 332 (step A4).
[0048]
FIG. 5A is a diagram illustrating an example of the display screen 501 when a tangent G1B is displayed as a result of performing tangent processing on the graph G1A based on the function equation 261 in step A4. Further, the mathematical expression display area 21 displays a mathematical expression 211 corresponding to the tangent line G1B.
[0049]
Next, upon detecting the switching of the application (Step A6), the CPU 31 switches the screen display of the display unit 38 in accordance with the execution of the application (Step A7).
[0050]
Then, the CPU 31 determines whether or not a mathematical expression is stored in the mathematical expression data storage area 332 (step A8). If no mathematical expression is stored (step A8: No), the CPU 31 ends the processing. When a mathematical expression is stored (Step A8: Yes), the CPU 31 holds the display of the mathematical expression display area 21 (Step A4), and ends the processing.
[0051]
FIG. 5B shows an example of the display screen 501 after the application is switched in step A9. The display of the graph display area 22 and the display area of the function expression input area 26 are switched by the execution of the application, but the mathematical expression display area 21 holds the display with the mathematical expression 211 being displayed.
[0052]
As described above, according to the first embodiment, the display of the mathematical expression display area 21 can be maintained even when the display of the display unit 38 is switched by switching the application. Therefore, for example, even if the application is switched during the graph processing, the display of the mathematical expression generated during the graph processing can be maintained, so that the mathematical expression can be processed by executing another application.
[0053]
[Second embodiment]
Next, a second embodiment to which the present invention is applied will be described. It should be noted that the configuration of the scientific calculator according to the present embodiment is the same as that of the scientific calculator 1 shown in FIG. 3 in the first embodiment, except that the ROM 32 is replaced by the ROM 60 shown in FIG. The configuration is the same as that of the RAM 70 shown in b), and the same components will be denoted by the same reference numerals and description thereof will be omitted.
[0054]
As shown in FIG. 6A, the ROM 60 particularly stores a graph display control program 601. The graph display control program 601 is a program for causing the CPU 31 to execute a graph display control process of displaying a graph in the graph display area 22 based on the selected function formula.
[0055]
As shown in FIG. 6B, the RAM 70 particularly includes a function expression data storage area 701. The function formula data storage area 701 stores a function formula corresponding to the graph displayed on the display unit 38.
[0056]
Next, a graph display control process according to a second embodiment of the present invention will be described with reference to FIGS. FIG. 7 is a diagram illustrating an operation flow of the scientific calculator 1, and FIG. 8 is a diagram illustrating a transition example of a screen displayed on the display unit 38.
[0057]
When the graph mode is instructed by the mode switching operation, the CPU 31 starts execution of a predetermined program related to the graph mode, sets the graph mode, and inputs a mathematical expression of the graph to be drawn and a display range. It waits for input of such setting items. Then, as shown in FIG. 7, when detecting the operation of the function expression input area 26 by the input pen 17 (step B1), the CPU 31 detects the function expression selected by the operation (step B2). FIG. 8A shows a display screen 502 as an example when the function expression 262 displayed in the function expression input area 26 in step B2 is tapped in with the input pen 17.
[0058]
When the CPU 31 detects the drag / drop operation of the function expression 262 by the input pen 17 (step B3; FIG. 8B), it determines whether or not the drop position is in the graph display area 22 (step B4). If it is outside the graph display area 22 (Step B4: No), the CPU 31 executes another process (Step B6).
[0059]
When the drop position is in the graph display area 22 (Step B4: Yes), the CPU 31 performs a graph drawing process based on the function expression 262 (Step B5). By this processing, a graph G2 corresponding to the function expression 262 is displayed as shown in FIG. On the other hand, as shown in FIG. 8C, the function expression 262 to be subjected to the graph drawing processing is displayed as a mathematical expression in the mathematical expression display area 21 (step B7). Then, the process ends.
[0060]
As described above, according to the second embodiment, one function formula is selected or designated from among a plurality of function formulas displayed in the function formula input area 26, and then the drag operation by the input pen 17 is performed. By simply performing a simple operation such as a drag operation and a drop operation, it is possible to easily and quickly draw and display a graph based on a selected or specified function expression in a graph display area. Therefore, the user can easily display the graph.
[0061]
Further, according to the second embodiment, one function formula is selected or designated by a drag operation with the input pen 17 from a plurality of function formulas displayed in the function formula input area 26, and thereafter, , Determines whether a drop operation of the selected or specified function expression from the drag operation position to the position in the graph display area has been performed, and selects or specifies the function expression to the position in the graph display area. The graph based on the selected or specified function expression can be drawn and displayed in the graph display area on condition that the drop operation has been performed. Can be visually associated and displayed continuously.
[0062]
In addition, since the function formula corresponding to the displayed graph is displayed as a formula in the formula display area 21, the displayed graph and the function formula corresponding thereto are easily grasped visually. can do.
[0063]
Note that instead of displaying a graph based on a selected or specified function expression by a drag operation and a drop operation with the input pen 17, a tap-in operation with the input pen 17 on the function expression input area 21 and the graph display area 26 is performed. Alternatively, a graph may be displayed based on a selected or specified function expression by operating a cursor.
[0064]
[Third Embodiment]
Next, a third embodiment to which the present invention is applied will be described. Note that the configuration of the scientific calculator according to the present embodiment is the same as that of the scientific calculator 1 shown in FIG. 3 in the first embodiment, except that the ROM 32 is the ROM 61 shown in FIG. The configuration is the same as that of the RAM 71 shown in b), and the same components will be denoted by the same reference numerals and description thereof will be omitted.
[0065]
As shown in FIG. 9A, the ROM 61 particularly stores a processing command control program 611 and a processing command storage area 612. The processing command control program 611, when performing an arithmetic processing on the graph displayed in the graph display area 22, adds a processing command to the mathematical expression displayed in the mathematical expression display area 21 based on the arithmetic processing and displays the processing command. This is a program for causing the CPU 31 to execute a control process. The processing command storage area 612 stores a processing command name corresponding to the arithmetic processing.
[0066]
The arithmetic processing includes, for example, a Root processing for obtaining an intersection between the graph and the x-axis, a Tangent processing for obtaining a tangent equation of the graph, and a ∫dx processing for performing integration.
[0067]
As shown in FIG. 9B, the RAM 71 particularly includes a function expression data storage area 711. The function formula data storage area 711 stores a function formula corresponding to the graph displayed on the display unit 38.
[0068]
Next, a processing command control process executed by the CPU 31 in accordance with the processing command control program 611 will be described with reference to FIGS. FIG. 10 is a diagram illustrating an operation flow of the scientific calculator 1, and FIG. 11 is a diagram illustrating a transition example of a screen displayed on the display unit 38.
[0069]
When the graph mode is instructed by the mode switching operation, the CPU 31 starts execution of a predetermined program related to the graph mode, sets the graph mode, and inputs a mathematical expression of the graph to be drawn and a display range. It waits for input of such setting items. Then, as shown in FIG. 10, when detecting the operation of the function expression input area 26 by the input pen 17 (step C1), the CPU 31 detects the function expression selected by the operation (step C2). FIG. 11A shows an example of the display screen 503 when the function expression 513 displayed in the function expression input area 26 in step C2 is tapped in with the input pen 17.
[0070]
When the CPU 31 detects a graph execution input (step C3), it performs a graph drawing process according to the function formula 513 selected by the input pen 17 and the input setting items (step C4).
[0071]
FIG. 11B shows an example display screen 503 displayed at this stage. As shown in the figure, a graph G3 based on the set display range is drawn in the graph display area 22. Further, a mathematical expression 523 corresponding to the graph G3 is displayed in the mathematical expression display area 21.
[0072]
Further, when the CPU 31 detects the graph calculation process execution input (step C5), the CPU 31 executes the calculation process on the graph G3 (step C6). At this time, a mathematical expression or the like generated by executing the arithmetic processing is displayed in the mathematical expression display area 21. FIG. 11C shows a display screen 503 as an example when a Root process, that is, a process of obtaining an intersection between the graph G3 and the x-axis is performed on the graph G3. The formula display area 21 displays a formula 533 generated by the Root process.
[0073]
When the CPU 31 detects the input of the execution of the mathematical formula processing application (step C7), it determines whether or not a processing command corresponding to the arithmetic processing performed in step C6 is stored in the processing command storage area 612 (step C8). If the corresponding processing command is stored (Step C8: Yes), the corresponding processing command is inserted and displayed at the head of Expression 523 (Step C9). When the corresponding processing command is not stored (Step C8: No), the CPU 31 ends the processing.
[0074]
FIG. 11D is a diagram showing an example display screen 503 in step C9. For example, when the Root process is performed in the graph calculation process in step C6, a command “Solve” indicating a process of obtaining a value of an arbitrary variable included in Expression 533 is inserted at the beginning of Expression 533 and displayed as Expression 534. You.
[0075]
As described above, according to the third embodiment, a processing command can be displayed in the mathematical expression display area 21 according to the arithmetic processing performed on the graph displayed in the graph display area 22. Therefore, the mathematical processing corresponding to the arithmetic processing performed on the graph can be easily performed on the function expression displayed in the mathematical expression display area 21.
[0076]
[Fourth Embodiment]
Next, a fourth embodiment to which the present invention is applied will be described. Note that the configuration of the scientific calculator according to the present embodiment is the same as that of the scientific calculator 1 shown in FIG. 3 in the first embodiment, except that the ROM 32 is the ROM 62 shown in FIG. The configuration is the same as that of the RAM 72 shown in b), and the same components will be denoted by the same reference numerals and description thereof will be omitted.
[0077]
As shown in FIG. 12A, the ROM 62 particularly stores a variable variable control program 621. The variable variable control program 621 is a program for causing the CPU 31 to execute a variable variable control process for varying a selected coefficient in the function expression displayed in the mathematical expression display area 21.
[0078]
As shown in FIG. 12B, the RAM 72 particularly includes a function formula data storage area 721 and a variable data storage area 722. The function formula data storage area 721 stores a function formula corresponding to the graph displayed on the display unit 38. In the variable data storage area 722, the value of the coefficient selected in the function expression displayed in the expression display area 21 is stored.
[0079]
Next, a variable variable control process executed by the CPU 31 according to the variable variable control program 621 will be described with reference to FIGS. FIG. 13 is a diagram illustrating an operation flow of the scientific calculator 1, and FIGS. 14 and 15 are diagrams illustrating transition examples of screens displayed on the display unit 38.
[0080]
When the graph mode is instructed by the mode switching operation, the CPU 31 starts execution of a predetermined program relating to the graph mode, sets the graph mode, and draws a graph, such as inputting a function formula of a graph to be drawn and a display range. Wait for input of setting items related to. Then, as shown in FIG. 13, when the CPU 31 detects an operation of the mathematical expression display area by the input pen 17 (step D1), the CPU 31 detects a function expression selected by the operation (step D2). FIG. 14A shows an example display screen 504 when the function expression 514 displayed in the function expression input area 26 is tapped in with the input pen 17 in step D2.
[0081]
Subsequently, upon detecting a graph execution input (step D3), the CPU 31 stores the selected function expression 514 in the function expression data storage area 721, and performs a graph drawing process according to the function expression and the input setting items (step D4). ). FIG. 14B shows an example display screen 504 displayed at this stage. As shown in the figure, a graph G4 based on the set display range is drawn on the display screen 504.
[0082]
Further, when detecting the operation of the mathematical expression display area 21 by the input pen 17 (step D5), the CPU 31 detects the coefficient of the function formula 524 selected by the operation, and stores the selected coefficient in the variable data storage area 722. (Step D6; FIG. 14C).
[0083]
Next, when detecting a drag / drop operation of the coefficient by the input pen 17 (step D7), the CPU 31 detects a drop position (step D8). Then, the CPU 31 determines whether or not the drop position is the graph controller 23 (step D9), and if it is other than the graph controller 23 (step D9: No), executes another process (step D10).
[0084]
On the other hand, when the drop position is the graph controller 23 (step D10: Yes), the CPU 31 stores the graph controller 23 and the selected coefficient in the variable data storage area 722 in association with each other (step D11). For example, as shown in FIG. 15D, when the coefficient “2” of the function expression 524 is selected, dragged, and dropped at the position of the graph controller 23R, the coefficient “2” is associated with the graph controller 23R. Is stored in the variable data storage area 722.
[0085]
Subsequently, when detecting the operation of the graph controller 23 (step D12), the CPU 31 determines whether or not the operated graph controller 23 and the coefficient are stored in the variable data storage area 722 in association with each other (step D13). If it is not stored (step D13: No), the CPU 31 executes another process (step D14). When the coefficient is stored (step D13: Yes), the CPU 31 adds or subtracts a predetermined value to or from the coefficient, and updates the function formula stored in the function formula data storage area 721 based on the updated coefficient (step D13). Step D15). Then, a graph drawing process is performed based on the function formula (step D16).
[0086]
Here, the predetermined value is an amount of change in which the coefficient increases or decreases in one operation on the graph controller 23, and is set before the variable variable control process is executed. In addition, for example, when the graph controller 23U or 23R is operated, a predetermined value is added to the coefficient associated with the graph controller, and when the graph controller 23D or 23L is operated, the predetermined value is added to the graph controller. A predetermined value may be subtracted from the coefficient.
[0087]
FIG. 15E shows a display screen 504 as an example when the graph controller 23R is tapped in with the input pen 17. Here, assuming that the coefficient “2” of the function expression 524 is registered in the graph controller 23R among the four graph controllers 23U, 23D, 23L, and 23R, for example, one time of the input pen 17 on the graph controller 23R. Since “1” is added by the operation, the graph display area 22 corresponds to the function expression 525 based on the coefficient updated by this one operation, instead of the graph G4 (broken line graph) being displayed. The graph G4 '(solid line graph) is displayed (FIG. 15 (f)).
[0088]
When one operation with the input pen 17 is continuously performed on the graph controller 23R, “1” is further added, and a function expression 525 based on the coefficient updated by this one operation is added to the graph display area 22. Will be displayed.
[0089]
Next, the CPU 31 monitors the end operation and determines whether the graph controller 23 has been operated by the input pen 17 (step D17). If it is determined that the end operation has been detected (step D17: Yes), this processing is ended.
[0090]
As described above, according to the fifth embodiment, the input pen 17 is used to select the coefficient of the function expression displayed in the mathematical expression display area 21 and to use the selected coefficient for four of the graph controllers 23. After registration with any of the graph controllers 23U, 23D, 23L, and 23R, the registration is performed every time the pen 17 is operated on the graph controllers 23U, 23D, 23L, and 23R in which the selected coefficient is registered. The value of the coefficient can be varied. Therefore, the user can easily confirm the change in the shape of the graph accompanying the change in the coefficient by operating the input pen 17.
[0091]
[Fifth Embodiment]
Next, a fifth embodiment to which the present invention is applied will be described. The configuration of the scientific calculator according to the present embodiment is the same as that of the scientific calculator 1 shown in FIG. 3 in the first embodiment, except that the ROM 32 is replaced with the ROM 63 shown in FIG. The configuration is the same as that of FIG. 3B except that the configuration is replaced with the RAM 73. Hereinafter, the same components are denoted by the same reference numerals and description thereof will be omitted.
[0092]
As shown in FIG. 16A, the ROM 63 particularly stores a function formula registration control program 631. The function formula registration control program 631 registers the function formulas in each of the four graph controllers 23, and thereafter displays a graph based on the function formulas registered by operating the graph controller 23. Is a program for causing the CPU 31 to execute.
[0093]
Further, as shown in FIG. 16B, the RAM 73 particularly includes a function formula data storage area 731. The function expression data storage area 731 stores a plurality of sets of the graph controller 23 and the function expressions in association with each other by executing the function expression registration control process of the CPU 31.
[0094]
Next, referring to FIGS. 17 and 18, a description will be given of the function formula registration control processing executed by the CPU 31 according to the function formula registration control program 631. FIG. FIG. 17 is a diagram illustrating an operation flow of the scientific calculator 1, and FIG. 18 is a diagram illustrating a transition example of a screen displayed on the display unit 38.
[0095]
When the graph mode is instructed by the mode switching operation, the CPU 31 starts execution of a predetermined program relating to the graph mode, sets the graph mode, and draws a graph, such as inputting a function formula of a graph to be drawn and a display range. Wait for input of setting items related to. Then, as shown in FIG. 17, when detecting the operation of the function expression input area 26 by the input pen 17 (step E1), the CPU 31 detects the function expression selected by the operation (step E2). FIG. 18A shows an example display screen 505 when the function expression 515 displayed in the function expression input area 26 is tapped in with the input pen 17.
[0096]
Subsequently, when detecting the drag / drop operation of the selected function expression (step E3), the CPU 31 detects a drop position (step E4). Then, the CPU 31 determines whether or not the drop position is on any of the four graph controllers 23 (step E5). If the drop position is other than the graph controller 23 (step E5: No), another process is executed. (Step E6).
[0097]
On the other hand, when the drop position is on any of the four graph controllers 23 (step E5: Yes), the graph controller 23 and the selected function expression are stored in the function expression data storage area 731 in association with each other (step E5). E7). For example, as shown in FIG. 18B, after the function formula 515 is selected and dragged, if the function formula 515 is dropped at the position of, for example, the graph controller 23R among the four graph controllers 23, the drop is performed. The calculated function formula 515 and the graph controller 23R are stored in the function formula data storage area 731 in association with each other.
[0098]
Next, when detecting the operation of the graph controller 23 (step E8; FIG. 18C), the CPU 31 determines whether the function expression associated with the operated graph controller 23 is stored in the function expression data storage area 731. Is determined (step E9). When the function formula is not stored (step E9: No), the CPU 31 executes another process (step E11). If the corresponding function expression is stored (step E9: Yes), the CPU 31 performs a graph drawing process based on the function expression (step E10).
[0099]
FIG. 18D is a diagram showing an example display screen 505 at this stage. The graph display unit 22 displays a graph G5 based on the function formula stored in the function formula data storage area 731 in association with the operated graph controller 23. Further, a function expression 525 corresponding to the graph G5 is displayed in the mathematical expression display area 21.
[0100]
Next, the CPU 31 monitors the end operation and determines whether the graph controller 23 has been operated by the input pen 17 (step E12). When it is determined that the end operation has been detected (step E12: Yes), the present process is ended.
[0101]
As described above, according to the fifth embodiment, a function expression can be registered in each graph controller 23. Accordingly, after the user registers the function formula in the graph controller 23, the user simply performs a tap operation on the registered graph controller 23, and quickly and easily obtains the graph corresponding to the function formula registered in the graph controller 23. Can be displayed.
[0102]
[Sixth Embodiment]
Next, a sixth embodiment to which the present invention is applied will be described. The configuration of the scientific calculator according to the present embodiment is the same as that of the scientific calculator 1 shown in FIG. 3 in the first embodiment, except that the ROM 32 is a ROM 64 shown in FIG. The configuration is the same as that of the RAM 74 shown in b), and the same components will be denoted by the same reference numerals and description thereof will be omitted.
[0103]
As shown in FIG. 19A, the ROM 64 particularly stores a graph operation control program 641 and a graph operation storage area 642. The graph calculation control program 641 performs a graph calculation control process of performing a calculation process registered on a graph based on the function formula by dragging and dropping a function formula onto the graph controller 23 in which various calculation processes are registered. This is a program to be executed by the CPU 31. In the graph operation storage area 642, each graph controller 23 and various operation processes are stored in association with each other. For example, the graph controller 23R and the tangent processing, and the graph controller 23U and the integration processing are stored in association with each other. Here, the tangent processing is processing for obtaining a tangent of the graph, and the integration processing is processing for performing integration on the graph.
[0104]
As shown in FIG. 19B, the RAM 74 particularly includes a function expression data storage area 741. The function formula data storage area 741 stores a function formula corresponding to the graph displayed on the display unit 38.
[0105]
Next, a graph calculation control process executed by the CPU 31 according to the graph calculation control program 641 will be described with reference to FIGS. FIG. 20 is a diagram illustrating an operation flow of the scientific calculator 1, and FIG. 21 is a diagram illustrating a transition example of a screen displayed on the display unit 38.
[0106]
When the graph mode is instructed by the mode switching operation, the CPU 31 starts execution of a predetermined program related to the graph mode, sets the graph mode, and draws a graph, such as inputting a function formula of a graph to be drawn and a display range. Wait for input of setting items related to. Then, as shown in FIG. 20, when the CPU 31 detects a graph controller setting execution input (step F1), the CPU 31 displays a graph controller calculation processing setting screen on the display unit 38 (step F2). Although not shown, the graph controller calculation processing setting screen is a setting screen for the user to register arbitrary calculation processing in each graph controller 23. Then, the CPU 31 stores the settings in the graph processing storage area 642 (step F4).
[0107]
Subsequently, when detecting the operation of the function expression input area 26 by the input pen 17 (step F5), the CPU 31 detects the function expression selected by the operation (step F6). FIG. 21A shows an example display screen 506 when the function expression 516 displayed in the function expression input area 26 is tapped in with the input pen 17 in step F6.
[0108]
Subsequently, when detecting the drag / drop operation of the selected function expression (step F7), the CPU 31 detects the drop position (step F8). Then, the CPU 31 determines whether or not the drop position is the graph controller 23 (step F9). If the position is other than the graph controller 23 (step F9: No), the CPU 31 executes another process (step F11).
[0109]
On the other hand, when the drop position is the graph controller 23 (step F9: Yes), it is determined whether the graph controller is associated with the arithmetic processing and stored in the graph processing storage area 642 (step F10). When there is no corresponding calculation process (step F10: No), the CPU 31 executes another process (step F11).
[0110]
On the other hand, if there is a corresponding calculation process (step F10: Yes), the CPU 31 performs a graph drawing process based on the selected function expression (step F12), and further executes the corresponding calculation process on the graph (step F12). Step F13).
[0111]
More specifically, as shown in FIG. 21B, for example, if tangent processing is registered in the graph controller 23R in advance, the function formula 516 is selected and dragged, and then the position of the graph controller 23R is changed. When the selected function expression 516 is dropped on the graph, a corresponding graph G6A is displayed based on the function expression 516 as shown in FIG. At the same time, a tangent process is performed on the displayed graph G6A, and a corresponding tangent G6B is drawn based on the executed tangent process. It is displayed in the display area 21.
[0112]
Similarly, if, for example, the integration process is registered in advance in the graph controller 23L, a function expression is selected and dragged, and then the selected function expression 516 is dropped at the position of the graph controller 23L. , A corresponding graph based on the function expression 516 is displayed. At the same time, an integration process is performed on the displayed graph, and based on the performed integration process, an integration rendering process is performed on the displayed graph, and a function expression 526 corresponding to the integrated rendering process is performed. Is displayed in the mathematical expression display area 21.
[0113]
As described above, according to the sixth embodiment, the arithmetic processing is registered in any one of the graph controllers 23, and then the function is stored in any position of the graph controller 23 where the arithmetic processing is registered. By a simple operation of dropping an expression, a graph corresponding to the function expression can be displayed. At the same time, the displayed graph is subjected to an arithmetic process associated with the graph controller 23, Drawing processing of another graph with respect to the graph can be performed. Therefore, the graph based on the function expression and the graph based on the arithmetic processing registered in the controller can be associated with each other and drawn and displayed simultaneously or continuously.
[0114]
As described above, the first to sixth embodiments have been described. However, the graphic display control device according to the present invention is not limited to only the above-described embodiment, and may be performed without departing from the scope of the present invention. Of course, various changes can be made.
[0115]
For example, in each of the above-described embodiments, a function formula display area for displaying a plurality of registered function formulas, or the function formula input area 26 in FIG. 2 or the display unit 38 in FIG. The graph display area 22 shown in FIG. 2 or the display unit 38 shown in FIG. 3 as a graph display unit, and the mathematical expression display area 21 shown in FIG. 2 or the display unit 38 shown in FIG. Although an example is shown in which three display units are partitioned on a single display panel, the present invention is not limited to this, and the three display units may be provided at physically separated positions. .
[0116]
【The invention's effect】
According to the first and seventh aspects of the present invention, even when the display on the display unit is switched by switching the application, the display on the mathematical expression display unit can be maintained. Therefore, for example, even if the application is switched during the predetermined processing, the display of the mathematical expression generated during the predetermined processing can be maintained, so that the mathematical expression displayed on the mathematical expression display unit can be processed by executing another application. .
[0117]
According to the second and eighth aspects of the present invention, the first operation of designating or selecting a function formula displayed on the function formula display unit and moving the designated or selected function formula to the graph display unit. With a simple operation of performing the two operations of the second operation, it is possible to quickly and surely display the corresponding graph on the graph display unit based on the function formula displayed on the function expression display unit. it can. Therefore, the user can easily display the graph.
[0118]
According to the third and ninth aspects of the present invention, it is possible to display a command corresponding to the arithmetic processing executed on the graph displayed on the graph display unit on the mathematical expression display unit. Therefore, the user can immediately learn the mathematical processing corresponding to the arithmetic processing performed on the graph, and can easily perform the arithmetic processing on the mathematical expression displayed on the mathematical expression display unit.
[0119]
According to the fourth and tenth aspects of the present invention, the first operation for designating or selecting the coefficients constituting the mathematical expression displayed on the mathematical expression display unit, and after the first operation, displaying on the graph display unit By performing two operations of a predetermined operation on the coordinate axis and a second operation on the predetermined operation, the coefficient of the function expression displayed on the mathematical expression display unit is registered in a predetermined operation on the coordinate axis. A simple operation of performing a second operation on a predetermined part of the above, the value of the registered coefficient is changed, and the graph displayed on the graph display section is redisplayed in conjunction with the change of the coefficient. Can be. Therefore, the user can easily confirm the change in the shape of the graph accompanying the change in the registered coefficient.
[0120]
According to the fifth and eleventh aspects of the present invention, after the first operation on the function expression displayed on the function expression display section, the third operation on the predetermined part of the coordinate axes displayed on the graph display section is performed. In the case where this is performed, a function formula specified or selected by the first operation is registered in the predetermined portion of the coordinate axis, and when a third operation is performed on the predetermined portion of the coordinate axis, The display of the graph based on the registered function formula can be controlled on the graph display unit. Therefore, the user can quickly and easily display the graph corresponding to the registered function formula by simply performing the third operation on the predetermined portion of the coordinate axis at an arbitrary timing after registering the function formula in the predetermined portion of the coordinate axis. Can be done.
[0121]
According to the sixth and twelfth aspects of the present invention, after the arithmetic processing is registered in a predetermined portion on the coordinate axis, the designated or selected function formula is moved to the registered predetermined portion on the coordinate axis. With a simple operation of performing the operation, the arithmetic processing associated with the predetermined portion is executed, and the graph of the executed result can be displayed and controlled on the graph display unit. Therefore, the user can easily execute the arithmetic processing on the graph.
[Brief description of the drawings]
FIG. 1 is a diagram showing an example of the appearance of a scientific calculator.
FIG. 2 is a diagram illustrating a display configuration of a display screen.
FIG. 3 is a block diagram showing a configuration of a scientific calculator.
FIG. 4 is a flowchart for explaining the operation of a function expression display control process according to the first embodiment.
FIG. 5 is an exemplary diagram showing a transition example of a screen displayed on a display unit according to the first embodiment.
FIG. 6 is a diagram illustrating a data configuration of a ROM and a RAM according to the second embodiment.
FIG. 7 is a flowchart illustrating an operation of a graph display control process according to the second embodiment.
FIG. 8 is a diagram illustrating an example of transition of a screen displayed on a display unit according to the second embodiment.
FIG. 9 is a diagram illustrating a data configuration of a ROM and a RAM according to the third embodiment.
FIG. 10 is a flowchart illustrating an operation of a process command control process according to the third embodiment.
FIG. 11 is a diagram showing a transition example of a screen displayed on a display unit according to the third embodiment.
FIG. 12 is a diagram illustrating a data configuration of a ROM and a RAM according to the fourth embodiment.
FIG. 13 is a flowchart illustrating an operation of a variable variable control process according to the fourth embodiment.
FIG. 14 is a diagram illustrating an example of transition of a screen displayed on a display unit according to the fourth embodiment.
FIG. 15 is a diagram illustrating a transition example of a screen displayed on the display unit according to the fourth embodiment, following FIG. 15;
FIG. 16 is a diagram showing a data configuration of a ROM and a RAM according to the fifth embodiment.
FIG. 17 is a flowchart for explaining the operation of a function formula registration control process according to the fifth embodiment.
FIG. 18 is a diagram showing a transition example of a screen displayed on a display unit according to the fifth embodiment.
FIG. 19 is a diagram showing a data configuration of a ROM and a RAM according to the sixth embodiment.
FIG. 20 is a flowchart illustrating an operation of a graph processing control process according to the sixth embodiment.
FIG. 21 is a diagram illustrating a transition example of a screen displayed on a display unit according to the sixth embodiment.
[Explanation of symbols]
1 Scientific calculator
11 Operation input keys
12 Direction keys
15 Display screen
21 Formula display area
22 Graph display area
23 Function expression
16 slots
17 Input pen
31 CPU
32 ROM
321 Function display control program
33 RAM
331 Function formula data storage area
332 Formula data storage area
34 Input section
35 Position detection circuit
36 tablets
37 Display drive circuit
38 Display
39 storage medium reading unit
160 storage media

Claims (12)

In a graphic display control device including: a mathematical expression display unit that displays a mathematical expression, and a display unit that switches to a display screen for the application that has been switched with the switching of the application.
An operation execution unit that executes a predetermined operation on the processing result in response to an operation input when a processing result of the first application is displayed on the display unit;
Numerical expression display control means for controlling the mathematical expression of the execution result by the arithmetic execution means on the mathematical expression display unit,
Switching means for switching an application to be displayed on the display unit from a first application to a second application in response to an operation input;
Wherein the mathematical expression display control means has display holding means for holding the display of the mathematical expression of the execution result of the arithmetic execution means with respect to the application before switching even when the application is switched by the switching means. A graphic display control device characterized by the following. In a graphic display control device including a function expression display unit that displays a plurality of registered function expressions, a graph display unit that displays a graph, and a formula display unit that displays a formula,
A first operation of selecting or specifying a function expression displayed on the function expression display unit and a second operation of moving the function expression displayed on the function expression display unit to the graph display unit are performed. And a graph display control means for controlling display of a graph based on the function formula moved by the second operation on the graph display unit,
When a graph is displayed on the graph display unit under the control of the graph display control unit, a function expression display control unit that controls display of a function expression corresponding to the graph on the mathematical expression display unit,
A graphic display control device comprising: In a graphic display control device including a mathematical expression display unit that displays a mathematical expression and a graph display unit that displays a graph based on the mathematical expression,
An operation execution unit that executes a predetermined operation on a graph displayed on the graph display unit in response to an operation input;
Numerical expression display unit control means for adding a command corresponding to the arithmetic processing to the mathematical expression and updating the display content of the mathematical expression display unit,
A graphic display control device comprising: In a graphic display control device including a mathematical expression display unit that displays an mathematical expression, and a graph display unit that displays a graph and coordinate axes based on the mathematical expression,
A first operation of designating or selecting a coefficient constituting a mathematical expression displayed on the mathematical expression display unit, and a second operation on a predetermined portion of a coordinate axis displayed on the graph display unit after the first operation A registration means for registering a coefficient designated or selected by the first operation in the predetermined portion of the coordinate axis when
A coefficient changing means for changing a value of the registered coefficient when a third operation is performed on the predetermined portion of the coordinate axis after the coefficient is registered by the registration means;
Graph re-display control means for re-displaying the graph displayed on the graph display section in conjunction with the change of the coefficient by the coefficient change means,
A graphic display control device comprising: In a graphic display control device including a function expression display unit for displaying a function expression, and a graph display unit for displaying a graph and coordinate axes,
A first operation for designating or selecting a function expression displayed on the function expression display section, and, after the first operation, a function expression designated or selected by the first operation; Display control means for displaying a graph based on the designated or selected function formula on the graph display unit when a second operation for moving to the display unit is performed;
When a third operation is performed on a predetermined portion of the coordinate axis displayed on the graph display unit after the first operation on the function expression displayed on the function expression display unit, the third operation on the coordinate axis is performed. Registration means for registering, in a predetermined portion, a function expression designated or selected by the first operation;
When the third operation is performed after the function expression designated or selected by the first operation is registered in the predetermined portion of the coordinate axis by the registration means, a graph based on the registered function expression Registered graph display control means for controlling the display on the graph display unit,
A graphic display control device comprising: In a graphic display control device including a function expression display unit for displaying a function expression, and a graph display unit for displaying a graph and coordinate axes,
A first operation of designating or selecting a function formula displayed on the function formula display unit and a second operation of moving the function formula designated or selected by the first operation to the graph display unit are performed. Display control means for controlling the display of the graph based on the function expression designated or selected by the first operation on the graph display unit,
Registering means for registering a predetermined calculation process by a third operation on a predetermined portion of the coordinate axis;
When the first operation on the function expression displayed on the function expression display section and the fourth operation on the predetermined portion of the coordinate axis are performed, the function expression specified or selected by the first operation Calculation result graph display control means for controlling the display of the graph of the result of performing the arithmetic processing on the graph based on the graph display unit,
A graphic display control device comprising: A figure display control device including a formula display unit that displays a formula, and a display unit that switches to a display screen for the switched application in accordance with the switching of the application,
A calculation execution function of executing a predetermined calculation process on the processing result in response to an operation input when a processing result of the first application is displayed on the display unit;
A mathematical expression display control function of controlling the display of the mathematical expression of the execution result by the arithmetic execution function on the mathematical expression display unit;
A switching function of switching an application to be displayed on the display unit from a first application to a second application in accordance with an operation input;
Realizing, the mathematical expression display control function, even when the application is switched by the switching function, a display holding function to hold the display of the mathematical expression of the execution result of the calculation execution function for the application before switching,
The program to realize. A function display unit that displays a plurality of registered function expressions, a graph display unit that displays a graph, and a graphic display control device that includes a formula display unit that displays a formula.
A first operation of selecting or specifying a function expression displayed on the function expression display unit and a second operation of moving the function expression displayed on the function expression display unit to the graph display unit are performed. A graph display control function of controlling display of a graph based on the function formula moved by the second operation on the graph display unit,
When a graph is displayed on the graph display unit by the control of the graph display control function, a function expression display control function of controlling display of a function expression corresponding to the graph on the mathematical expression display unit,
The program to realize. A graphic display control device including a mathematical expression display unit displaying a mathematical expression and a graph display unit displaying a graph based on the mathematical expression,
An operation execution function of executing a predetermined operation on a graph displayed on the graph display unit in response to an operation input;
A mathematical expression display unit control function of adding a command corresponding to the arithmetic processing to the mathematical expression and updating display contents of the mathematical expression display unit;
The program to realize. A graphic display control device including a mathematical expression display unit for displaying mathematical expressions and a graph display unit for displaying a graph and coordinate axes based on the mathematical expressions,
A first operation of designating or selecting a coefficient constituting a mathematical expression displayed on the mathematical expression display unit, and a second operation on a predetermined portion of a coordinate axis displayed on the graph display unit after the first operation A registration function of registering a coefficient specified or selected by the first operation in the predetermined portion of the coordinate axis when
A coefficient changing function for changing a value of the registered coefficient when a third operation is performed on the predetermined portion of the coordinate axis after the coefficient is registered by the registration function;
A graph re-display control function of re-displaying the graph displayed on the graph display unit in conjunction with the change of the coefficient by the coefficient change function;
The program to realize. A graphic display control device including a function expression display unit that displays a function expression, and a graph display unit that displays a graph and coordinate axes,
A first operation for designating or selecting a function expression displayed on the function expression display section, and, after the first operation, a function expression designated or selected by the first operation; A display control function of controlling display of a graph based on the designated or selected function formula on the graph display unit when a second operation for moving to the display unit is performed;
When a third operation is performed on a predetermined portion of the coordinate axis displayed on the graph display unit after the first operation on the function expression displayed on the function expression display unit, the third operation on the coordinate axis is performed. A registration function of registering, in a predetermined portion, a function expression designated or selected by the first operation;
When an instruction is input to the predetermined portion of the coordinate axes and a function formula is registered in the predetermined portion by the registration function, a graph based on the registered function formula is displayed in the graph display section. A registered graph display control function to control display
The program to realize. A graphic display control device including a function expression display unit that displays a function expression, and a graph display unit that displays a graph and coordinate axes,
A first operation of designating or selecting a function formula displayed on the function formula display unit and a second operation of moving the function formula designated or selected by the first operation to the graph display unit are performed. A display control function for controlling display of a graph based on the function expression designated or selected by the first operation on the graph display unit,
A registration function of registering a predetermined calculation process by a third operation on a predetermined portion of the coordinate axis;
When the first operation on the function expression displayed on the function expression display section and the fourth operation on the predetermined portion of the coordinate axis are performed, the function expression specified or selected by the first operation A calculation result graph display control function of controlling display of a graph of the result of performing the calculation processing on the graph based on the graph display unit;
The program to realize.

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