JPS63103356A - Desk-top electronic calculator - Google Patents

Abstract

PURPOSE:To improve the arithmetic processing reliability by masking the abnormal one of input data and carrying out the arithmetic processing excluding the masked data. CONSTITUTION:A display device 5 consists of a graph display part 6 and a status display part 7. A RAM 10 stores various programs and a CPU 11 controls various arithmetic operations and other blocks based on these programs. A RAM 12 contains a variable number memory group 13, an array memory group 14 and a general-purpose RAM 15. The abnormal ones of input data are masked by key input devices 3 and 4. The CPU 11 carries out the arithmetic processing excluding those masked data and the arithmetic results are displayed at the part 6.

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to an electronic desk top that inputs data such as numerical values, stores the data, and executes processes such as calculations on the input data according to necessary operations such as function keys. Regarding calculators.

<Prior Art> Among calculators and the like, there is a scientific calculator that can perform not only numerical calculations but also functional calculations. There are also devices that input statistical data, perform calculations based on this statistical data, and display necessary graphs.

Furthermore, when it is desired to obtain a graph of a linear function as shown in FIG. 7, x and y data are input and the display is displayed on the display according to this input data.

<Problems to be Solved by the Invention> According to the prior art as described above, a graph of a linear function is drawn on the display unit according to all input data.

Here, even if abnormal data is input among the input data, a graph will be drawn according to that data. In addition, when calculating the average value of input data, not only graphs, etc., there may be an abnormal difference from other data, and the average value may be greatly influenced by the value of this data. In this case, the average value etc. may lack reliability.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a calculator that can perform arithmetic processing while excluding abnormal data that differs from standard data.

<Means for Solving the Problem> According to the calculator of the present invention, in a calculator that stores input data and performs arithmetic processing according to this stored data, means for masking abnormal data among the input data is provided. The present invention is characterized by a configuration in which calculation processing is performed excluding the masked data, and the calculation results are displayed.

Effects> According to the calculator of the present invention, abnormal data among input data is masked, so that the abnormal data is no longer used as data for calculation processing.

<Example> FIG. 1 is a plan view showing a scientific calculator with a graph display function according to the present invention.

In the figure, 1 is a scientific calculator body provided on the left side of a flexible cover 2 that can be folded into two from the center, and 3 is a key manual device provided on the right side of the cover 2. This key power device 3 is electrically connected to the main body 1 of the scientific calculator, and similarly to the key power device 4 on the main body side, key power can be applied to the main body.

5 constitutes a display device, especially 6 is "96x32"
Consists of a dot LCD (liquid crystal display panel), 1
It shows a graph display section that can display 6-digit, 4-level characters and a graph, and the part numbered 7 displays a graphic symbol, etc. related to the operation key when a specific key is operated, to indicate a specific state. The status display section is shown to inform you that there is a current status.

8 is a mode changeover switch, and by sliding the switch you can select COMP mode (mainly a mode for performing various calculations), 5TAT mode (a mode related to statistics), and AER.
-1 mode and AER-II mode (algebraic expression storage mode). Further, 9 is a label indicating the type of graph to be displayed on the graph display section 6.

Further, the tm key 31 is a tree root key for finding the intersection point (east root) of multiple graphs displayed on the screen, and the ro key 32 is a graphic command key operated before inputting the formula for the graph to be displayed. This command is executed by operating the execution key (I key 34).

The big key 33 is an autograph command key for automatically setting the range in the y-axis direction of the graph related to the input formula and creating a graph. The big key 34 is a graphic display execution key. The tm key 36 is a command key for connecting two points on the graphic screen with a straight line. The m key 37 is an execution key for scaling the displayed content on the graphic screen at a constant magnification. , key 38 is a key for clearing the graphic screen except for the coordinate axes.

FIG. 2 shows a block configuration, and to explain a little more based on this figure, 3.4 is a key human power device, and 5 is a device consisting of a graph display section 6 and a status display section 7.

In addition, the symbol IO is a ROM (ROM) that stores various programs.
1-de only memory), 1l is a CPU (central processing unit) for controlling various calculations and other blocks based on the ROMIO program, and 1l is a CPU (central processing unit) for controlling various operations and other blocks based on the ROMIO program.
For example, a RAM (read/write) with a capacity of 8Kbyte
write memory). This RAM 12 is a general-purpose RAM 15 provided with variable memory details 13, array memory group 14, actual contents of the array, key input buffer, etc.
It consists of Note that the array memory group 14 does not store actual numerical values, but stores pointers to addresses in the general-purpose RAM 15 and the size of the array.

Furthermore, each key-powered device 3.4 is provided with a total of 90 input key switches, and by operating these keys, power can be turned on and off, calculation formulas can be input, and various commands can be executed.

Each key has functions 1 to 5, respectively, depending on the combination operation with other keys, for example, the operation of the cokey 43, the display contents of the status display section 7, and the setting position of the mode changeover switch. There is.

Note that 16 in the figure is a communication interface circuit.

In the calculator with the graph display function configured as described above, the third aspect regarding the input data masking function of the present invention is as follows.
This will be explained in detail according to the flowchart in the figure. Also, the third
In the figure, for the purpose of making the operation etc. easier to understand, an example of key manual force according to the flowchart and the state displayed on the graph display section 6 at that time are shown in relation to each other.

First, slide the mode selector switch 8 to "5T"
Select AT mode °■. With this mode selection, the graph display section 6 displays whether or not to select the data store mode, as shown in the figure.

Then, by operating the mouth and key 42, the data store mode is selected. When data store mode is selected, input data is automatically stored in data area "S". Following this, you can enter the title name of the data you are about to input ■. In this example, X and Y data (values) related to a linear function are input, and "I J IKANSUU" is input as the title name.

By operating the keypad 42 after this input, the title name is stored and also displayed on the display section 6. This title name may be entered as necessary, and may not be entered if necessary.

After entering the title, enter the x and y data ■. This input can be done by operating the numeric keys and pressing the 100 key 43.
Data can be entered by operating the . In this case, 2
If you want to input a variable, enter it using the numeric keys (you can also enter it using the other keys) and operate the key 30, or press E.
This is executed by operating the NEEI key 40, then operating the numerical keys, and then operating the ward key 43. If it is 1, data can be entered by operating 1m-1-43 after operating the numeric keys. An example of this x, y data input is as shown in FIG. 4(a).

When data is input manually as shown in FIG. 4(a), the input data is displayed on the display section 6 at the same time. The number one row below the input data display (details are shown in FIG. 5) indicates the total number of input data, and is the number of the manual data shown in FIG. 4(a). As for the input data, a title is stored in the "S" area of the array memory group 14 of the RAM 12, and data corresponding to the title as shown in FIG. 4('a) is stored in the general-purpose flAM+5. A pointer or the like indicating the address of the data area stored in this general-purpose RAM 15 is in the array memory group 14.

The title and name are memorized.

After completing the input of data as shown in Figure 4(a) in the above manner, it is checked whether this input data is normal or not, and if abnormal data exists, that data is masked. I do. That is, the user confirms whether or not the data is abnormal, and if the abnormality is confirmed, the masking process is executed. First, the display screen (text screen) for inputting data as described above is switched to the data screen (screen displaying input and stored data). This switching is done by [i key 43 and ro key (key 44
), you can switch to the data screen as shown in Figure 3. As a result, the array memory group 14 “
General-purpose RAM according to the pointer stored in the S” area.
The input data shown in FIG. 4(a) of 15 is read out and displayed on the graph display section 6. In this display, S indicates the "S" area of the array memory group 14, and [1,1] and [2
, 1] indicates the data of the first entry of X and y, and the numerical value displayed at the bottom is the y position of that X. Further, the cursor position is the position where S is blinking.

In the data screen state, the cursor moves to the first point of the input data, for example.
S is blinking to indicate the value of the th X. Then, when the key 44 is operated, the cursor moves to indicate the next first y value, and S at that position blinks. Further, when the Δ key 46 is operated, the cursor is moved to the upper part, contrary to the above. Therefore, by operating the key 44 or the △ key 46 in the state of the data screen, specific input data can be selected and specified. In this way, if you refer to the input data and check for abnormal data, select and specify the location of this data. When the key 43 is operated and the figure key 39 is operated, the data at the blinking S position is masked. The above-mentioned figure key 39 acts as a TM figure key by operating the E key 42. As a result, "1M" is displayed after the data "=",
This data is visually distinguished from other data to show that it is masked. This allows masked data to be easily recognized.

Here, in the case of two variables such as x and y, if one is masked, the other is masked at the same time. This mask state is shown in detail in FIG. 6. Note that in the case of ■variables, only the selected and designated data will be masked. In this state, as an example is shown in FIG. 8, only the target portion is masked.

Further, if it is easy to understand whether or not the input data is abnormal by referring to a graph, the graph may be displayed. Therefore, it is sufficient to draw a graph of a linear function according to input data. For example, in step ■, in the text screen state,
By sequentially operating the i key 43, the eclipse J key = r key 34), the mouth face m key 33, and the mi key 34, a graph corresponding to the input data in FIG. 4(a) will be displayed as shown in FIG. is drawn on. In this case, the dotted line is based on the human power data in FIG. 4(a). In this figure, the solid line is the correct graph (not currently displayed). By referring to this, it can be determined that the input data of data numbers 6 and 7 shown in FIG. 4(a) are abnormal.

Once data has been input as described above, abnormal data has been confirmed and masked, key operations can be performed to process the input data. This can be done as needed. If you want to display a graph of a linear function of data, you need to switch from the data screen state to the text screen state. This switching is done first by E cokey 43.
By operating the key 44, the screen is switched to the text screen state. In this state, as explained earlier, [?
Press ll+IIM&bi匡■η keys in order to get to the 7th
The solid line shown in the figure is drawn. In this data processing, masked data is omitted and processed based on other input data. Processing data at this time is shown in FIG. 4(b).

Next, control for canceling the masked state will be explained.

Therefore, the display screen is switched to the data screen.

Here, if the currently displayed screen is a text screen or a graph drawing screen, it can be switched to a data screen by operating the ward key 43 or box key twice or once. On this data screen, if you move the cursor to specify the ``1M'' display position and then operate the 1■ key 43 and the 匡平道 key 39, the masking state will be canceled and the above ``1M'' will be displayed. disappears. In this case, since the mask setting state of the data is shown, it can be easily performed.

Next, to add input data, if you switch to the text screen in step (2), you can input additional data. Regarding the operation at this time, as described above, by operating the 1m key and operating the + key (key 44), the screen is switched to the data screen. In that state, you can execute it by performing the same operation as the previous input. In the data store mode, the input data is stored, so the total number of data indicates the total of the previously input data and additional data. At this time, the number of masking data ignored in data processing is included in the total number of data. In other words, when masking data exists, the number of processed data and the total number of data do not match as shown in FIG.

To store further data, by operating the Loco key 43 and the Time key 47 (corresponding to the Time key operation), CLEAR->ENT will be displayed on the graph display section 6, and in this state, press the Kenden key 48. By operating it, you will return to the data title Master Power in step ■. As a result, the data shown in FIG. 4 is cleared (erased).

5 To cancel the TAT mode, slide the mode selector switch 8■.

In the above explanation, a graph is drawn by inputting data related to a -order function, and if there is an abnormal value in this input data, it is selected and specified and masked, but this is not limited to inputting data. When calculating the average value of data, it is effective to mask data with abnormal values and calculate the average value.

In other words, if some of the input data shows a value that is completely different from other data, the average value will be greatly influenced by this data, and the average value will be completely different from the average value of other average data. It will be output. For this reason, it is very effective to mask this abnormal data and find the average value.

Effects> As described above, according to the calculator of the present invention, human data is stored and this stored data is masked as necessary, and no data processing is performed on this mask data.
The processing results are highly reliable and effective.

Furthermore, since the masked state of data is displayed to distinguish it from other non-masked data, the masked state can be easily recognized.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a calculator with a graph display function according to the present invention, FIG. 2 is a block diagram showing the control circuit configuration in FIG. 1, FIG. 3 is a flowchart showing the control procedure of FIG. 2, and FIG. The figure is a data diagram showing an example of human data.
FIG. 5 is a diagram showing a display screen during data input according to the present invention, FIG. 6 is an explanatory diagram of a masked state according to the present invention, and FIG.
The figure is a diagram showing the state of graph depiction by data processing on the display section, and FIG. 8 is an explanatory diagram showing the mask state for one variable. 3.4: Key human powered device 5; Graph display section +2. RAM
14; Array memory group 15, general-purpose RAM Agent: Patent attorney Kaji Sugiyama (and 1 other person) 2nd mouth Figure 5

Claims (1)

[Scope of Claims] 1. A storage unit that stores input data; a reading unit that reads out the data stored in the storage unit; a display unit that displays the data read from the storage unit; and a display unit that displays the data read out from the storage unit. a selection means for selecting and instructing the data selected by the selection means; a masking means for instructing and masking the data selected by the selection means; a means for performing arithmetic processing based on data other than the data masked by the masking means; An electronic desk calculator characterized by comprising: 2. The electronic desk calculator according to claim 1, wherein the protection means displays the masked state of the instructed data together with the data display.