KR20160041288A - Method and system for inputting and caculating mathmetical formula using touch screen - Google Patents
Method and system for inputting and caculating mathmetical formula using touch screen Download PDFInfo
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- KR20160041288A KR20160041288A KR1020140134898A KR20140134898A KR20160041288A KR 20160041288 A KR20160041288 A KR 20160041288A KR 1020140134898 A KR1020140134898 A KR 1020140134898A KR 20140134898 A KR20140134898 A KR 20140134898A KR 20160041288 A KR20160041288 A KR 20160041288A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0481—Interaction techniques based on graphical user interfaces [GUI] based on specific properties of the displayed interaction object or a metaphor-based environment, e.g. interaction with desktop elements like windows or icons, or assisted by a cursor's changing behaviour or appearance
Abstract
Description
The present invention relates to a technique for inputting a formula using a touch screen when a program that can utilize a calculation function in a terminal is used. More specifically, it is possible to input a complex formula in a simple and intuitive manner, The present invention relates to a mathematical expression input method and a mathematical mathematical operation technique using the same.
The usage rates of user terminals such as smart phones and tablet PCs have been greatly increased, and digital contents and services using user terminals have been provided in education. Recently, a user terminal that has been popular recently includes various types of input means in addition to wired / wireless communication means, so that users can download contents necessary for education and utilize it by using input means and output means.
As the contents of digital contents in educational field become diversified, techniques for learning using mathematical field using user terminal are being studied in particular. Unlike other learning fields, mathematics requires inputting of mathematical expressions and operations on them in order to learn various mathematical contents. Existing formula input can be performed using a professional digital calculator, and it is very difficult to input a formula using a commercialized user terminal due to the diversity of formulas and the expertise of formulas and symbols.
In order to solve such a problem, researches on a technique of inputting a formula using various touch screens and calculating and analyzing the formula are continuing. Particularly, as a technique for a user to input a formula using a touch screen and process the same, Korean Registered Patent No. 10-0963976 discloses a technique in which when a user writes a formula using a pen for a touch screen or a user's finger, And a technique for performing an input of a formula.
However, in this technique, there is a problem that the accuracy of the formula recognition is low due to the error of the formula recognition according to the handwriting of the user, and the input speed is slow.
On the other hand, in the form in which a predetermined formula is output, difficulties have been pointed out in terms of difficulty of input because a user has to learn a method for inputting a predetermined formula in advance, and a formula that can be inputted is smaller than the size of a display module of a predetermined user terminal It has been pointed out that it is limited to very simple formulas.
Accordingly, it is an object of the present invention to provide a technology for greatly improving the accuracy and speed of input and for inputting various expressions within a predetermined screen size in accordance with the level of a user, The present invention has been made to solve the above problems.
According to an aspect of the present invention, there is provided a method of inputting and calculating a mathematical expression using a touch screen according to an exemplary embodiment of the present invention, wherein a user terminal is capable of inputting a mathematical expression A first interface for displaying a plurality of predefined numbers and expressions that can be input, and a second interface for displaying at least one of the numbers and expressions as numeric and mathematical expressions in which numbers and expressions corresponding to the selections are inputted, Outputting a second interface to be displayed; A second interface for inputting at least one of a first touch input that is a touch input to at least one of the plurality of numerals and expressions displayed on the first interface and a number and an equation corresponding to the touch input to the second interface, Receiving a second touch input that is a touch input to the touch input; At least one number and an expression included in the first touch input corresponding to the second touch input are displayed in an area corresponding to the touch input for the second interface when receiving the second touch input, ; And calculating the calculation result of the formula displayed on the second interface and outputting the calculation result to the touch screen upon receiving the touch input for the operation menu displayed on the touch screen.
The formula input and calculation system using a touch screen according to an embodiment of the present invention is an interface capable of inputting a formula through a touch input in one of the touch screen areas of a user terminal, And an interface output unit for outputting a second interface in which at least one of the numerals and the mathematical expressions are displayed as numbers and expressions in which numbers and expressions corresponding to the selections are inputted, A second interface for inputting at least one of a first touch input that is a touch input to at least one of the plurality of numerals and expressions displayed on the first interface and a number and an equation corresponding to the touch input to the second interface, A touch input receiving unit for receiving a second touch input which is a touch input to the touch input; At least one number and an expression included in the first touch input corresponding to the second touch input are displayed in an area corresponding to the touch input for the second interface when receiving the second touch input, A mathematical expression input section for performing a mathematical expression; And an arithmetic processing unit for calculating an operation result of the expression displayed on the second interface and outputting the operation result to the touch screen upon receiving the touch input for the operation menu displayed on the touch screen.
According to the present invention, numeric and mathematical expressions can be input in a touch-and-drop manner in a touch screen area of a user terminal. Therefore, it is possible to input a mathematical expression in a very simple manner, So that the usability of the formula input and calculation using the user terminal can be greatly improved.
In addition, since the formula corresponding to the learning content of the user is provided, it is possible to input various formulas that the user can use according to the level of the user, within the predetermined screen size.
Further, since it is not a recognition method, there is an effect that accuracy and speed of input are greatly improved.
1 is a flowchart illustrating a method of inputting and calculating a formula using a touch screen according to an embodiment of the present invention.
2 is a configuration diagram of a mathematical expression input and calculation system using a touch screen according to an embodiment of the present invention.
3 to 5 are examples of screens displayed on a touch screen of a user terminal according to an embodiment of the present invention;
6 is a diagram for explaining a flow in which an operation of a formula is processed according to an embodiment of the present invention;
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout.
The following examples are intended to illustrate the present invention and should not be construed as limiting the scope of the present invention. Accordingly, an equivalent invention performing the same function as the present invention is also within the scope of the present invention.
In addition, in adding reference numerals to the constituent elements of the drawings, it is to be noted that the same constituent elements are denoted by the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
In describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected to or connected to the other component, It should be understood that an element may be "connected," "coupled," or "connected."
In the embodiments of the present invention, " communication ", " communication network ", and " network " The three terms refer to wired and wireless local area and wide area data transmission and reception networks capable of transmitting and receiving a file between a user terminal, a terminal of another user, and a download server.
In the following description, the term " server " refers to a server computer to which users are connected and connected to use contents. If the capacity is small or the number of users is small, a large number of programs can be operated on one server. Also, if the capacity is very large or the number of real-time connections is large, there may be one or more servers for operation depending on the function.
Middleware for the database and servers performing settlement processing may be connected to the server, but a description thereof will be omitted in the present invention.
1 is a flowchart illustrating a method of inputting and calculating a formula using a touch screen according to an embodiment of the present invention.
Referring to FIG. 1, in a method of inputting and calculating a formula using a touch screen according to an exemplary embodiment of the present invention, a user terminal of a user inputs a formula input through a touch input in one of touch- A first interface for displaying a plurality of preset numeric and mathematical expressions that can be input and a first interface for displaying a numeric and mathematical expression corresponding to the selection when at least one of the numeric and the mathematical expression is selected by the user's input, (Step < RTI ID = 0.0 > S10) < / RTI &
The user terminal in the present invention is a concept including all terminals capable of performing the functions of the present invention such as terminals connected to a monitor equipped with a touch screen and capable of touch input together with a portable terminal such as a smart phone or a tablet PC Will be.
The first interface output through step S10 will be understood as a concept similar to a keypad output when a character is sent from a user terminal. However, as described below, a touch and drop or a drag and drop ) Method, it means an interface in which numbers and expressions that can be inputted are outputted.
The numbers and expressions output to the first interface means a plurality of numbers and expressions that are required when a user inputs a formula. In the memory of the user terminal, a plurality of numeric and mathematical identification information that can be output to the first interface, image information output to the first interface, and semantic information of numbers and mathematical expressions are matched and stored in association with the profile dictionary data have.
On the other hand, the first interface is composed of a limited area, and since the number of expressions and numbers that can be output is very large, it is necessary to use it efficiently.
To this end, the processor of the user terminal can control, when outputting the first interface, that only the selected number and formula are included in the first interface according to a predetermined criterion.
For example, the user terminal can select and output a plurality of numbers and expressions to the first interface based on the information of the user stored in the memory.
The information of the user stored in the memory of the user terminal may include a plurality of numbers and information indicating which number and expression is required for learning by the user among the expressions. For example, a plurality of numbers and expressions can be selected on the basis of information about the learning contents that the user is learning through the first interface and the second interface using the current user terminal.
For example, when a user is conducting primary and secondary mathematics learning, the first interface may be constituted by numerical and mathematical symbols commonly used in elementary and high school mathematics, or numerical and mathematical symbols So that the first interface can be configured.
For example, when learning information that the user has learned up to the contents of the quadratic equation and is located in a learning stage for evaluating the contents of the quadratic equation is stored in the memory of the user terminal, Only necessary numbers and mathematical expressions can be selected based on the learning information of the first interface and output to the first interface.
That is, the processor of the user terminal outputs only the necessary numbers and expressions using a limited area of the touch screen by outputting only the customized numbers and expressions to the user in the first interface, It is easy to input.
On the other hand, for convenience of touch and drag, when outputting the first interface, the user terminal divides the first interface into a plurality of tile-shaped areas, and then outputs a plurality of numbers and expressions to the tile-shaped areas .
In addition, for convenience of input, by dividing the interface for shifting the numbers and expressions inputted by the user in the second interface, i.e., the first interface, into a plurality of grid-shaped regions, The formula can be positioned and output.
For example, in the second interface, numerical and mathematical expressions inputted by the user's selection are output. When a formula such as a fractional number is inputted, one area is divided into a grid form, the fractional symbol is divided into a center grid, The corresponding numbers and equations constitute an interface that can position each number and formula so that they are output to the upper and lower grid based on the center grid.
As described above, when the step S10 is performed, the user terminal may transmit at least one of numbers and expressions corresponding to the first touch input and the touch input as the touch input to at least one of a plurality of numbers and expressions displayed on the first interface, (Step S20) of receiving a second touch input for a second interface for inputting a second touch input.
In the embodiment of the present invention, the first touch input and the second touch input included in the execution of step S20 may be separately input or connected to each other.
For example, if the user touches a number on the first interface, it is determined that the first touch input for the number is performed. If the touch input is moved to one area of the second interface and then released, It can be determined that the second touch input is performed in the area where the touch input is released. That is, a drag-and-drop type input can be performed.
On the other hand, when the user touches a number on the first interface and then cancels the input, it is determined that the first touch input has been performed. Then, when the touch input and the release of the second interface are detected, It can be determined that the second touch input has been performed. That is, a touch-and-drop type input can be performed. For example, if the user touches a certain number and then touches one area of the second interface continuously, the number selected by the first touch input is input to the area corresponding to the re-performed touch input Can be performed.
Meanwhile, the first touch input and the second touch input are performed not only for a single number and an expression, but also for a plurality of numbers and expressions. That is, the user can simultaneously perform a first touch input and a second touch input on a plurality of numbers and expressions using a plurality of fingers.
When the step S20 is performed, the user terminal receives the second touch input. At this time, the at least one number and the formula included in the first touch input corresponding to the second touch input are inputted to the touch input for the second interface, (S30) of performing the formula input so as to be displayed in the area corresponding to the two-touch input.
That is, in step S30, the processor of the user terminal receiving the first touch input and the second touch input interprets the second touch input corresponding to the first touch input and determines the expression as a user's input to the second interface And an execution step corresponding to the function of outputting the result.
At this time, the processor of the user terminal can determine the area to which the mathematical expression is to be input automatically, rather than the area where the second touch input is performed, for convenience of the user, and control the mathematical expression to be positioned in the corresponding lattice area.
That is, when the user terminal receives the second touch input for at least one number corresponding to the first touch input and the second touch input, among the plurality of grid-shaped areas included in the second interface, And numeric and mathematical expressions are automatically positioned and displayed in an area where it is determined that the mathematical expression should be input.
That is, when the first and second touch inputs to the object of the formula tile are performed, the processor of the user terminal can adaptively perform an input operation in accordance with the structure of the formula, So that even if it is dropped in the vicinity of the position, it is automatically inputted into the corresponding lattice area.
For example, when the user enters the quadratic equation, when inputting x 2 and then inputting 2 by the first and second touch inputs after entering x 2, The display area is controlled so as to be automatically positioned in the corresponding lattice area. This minimizes errors in the input of formulas that can occur when inputting to the touch screen.
Further, it is possible to input a plurality of mathematical expressions into each area of the second interface on the basis of various mathematical symbols. For example, based on the '=' sign, you can let the solution enter your expression and answer.
Also, in step S30, the processor may provide a menu for allowing other expressions to be inserted or removed in the middle of the expression in order to provide convenience in inputting the expression.
Upon receiving the touch input for the operation menu displayed on the touch screen after the formula input is performed in step S30, the user terminal computes the operation result of the formula displayed on the second interface and outputs it to the touch screen (Step S40).
In operation S40, when the user terminal receives the input to the operation menu, the user terminal extracts identification information of a plurality of numbers and expressions displayed on the second interface, and then, from the profile dictionary data stored in the memory of the user terminal, And the calculation content of the mathematical expression corresponding to the extracted identification information is selected. Thereafter, a number is calculated according to the contents of the equation symbol on the basis of the selected calculation contents, and the calculation result is calculated.
At this time, the structure and meaning of the expression located in each lattice region of the second interface are read and converted into, for example, Presentation MathML and Content MathML, which are markup languages, stored in at least one buffer, After referring to the data of the formula type index information, the structure and meaning of the inputted formula can be determined by grasping the positional relationship between the formulas inputted in the respective grid areas. Then, the operation is performed according to the determined formula.
At this time, it is possible to judge the type of operation based on the information stored in the buffer and output the operation result differently. For example, in the case where the meaning of the expression is an arithmetic expression that obtains a calculation value, the calculation result can be calculated as information on the result of processing the expression calculated through the operation. On the other hand, when the solution is an input relating to expressions and answers, it is possible to calculate the calculation result of the information on the scoring calculated according to the error check of the input and the error check.
As described above, since a plurality of mathematical expressions can be input to the second interface, even when the operation result is outputted to the touch screen in step S40, the mathematical expression displayed on the second interface can be expressed by a plurality of mathematical expressions , And then the calculation result can be calculated and output for each formula.
By performing the above-described functions, the user can input numbers and expressions in the touch-screen area of the user terminal in a drag-and-drop or touch-and-drop manner and can input the expressions in a very simple manner. It is possible to derive an operation result and greatly improve the usability of the formula input and operation using the user terminal.
In addition, since the formula corresponding to the learning content of the user is provided, it is possible to input various formulas that the user can use according to the level of the user, within the predetermined screen size.
Further, since it is not a recognition method, there is an effect that accuracy and speed of input are greatly improved.
2 is a configuration diagram of a formula input and calculation system using a touch screen according to an embodiment of the present invention. In the following description, portions overlapping with the description of FIG. 1 will be omitted.
2, a mathematical expression input and
The
The touch
The
The
3 to 5 are examples of screens displayed on a touch screen of a user terminal according to an embodiment of the present invention. In the following description, the description of the parts overlapping with the description of FIG. 1 and FIG. 2 will be omitted.
First, referring to the
After completing the input of the formula in the
Referring to the
On the other hand, FIG. 5 shows a partial enlarged view of one
6 is a diagram for explaining a flow in which an operation of a formula is processed according to an embodiment of the present invention.
Referring to FIG. 6, the
When the operation is completed, the
As described above, in the method of inputting and calculating a formula using the touch screen according to the embodiment of the present invention, an application installed basically in the user terminal (which may include a program included in a platform or an operating system basically installed in the terminal) And may be executed by an application (i.e., a program) directly installed on a user terminal by a user via an application providing server such as an application store server, an application, or a web server associated with the service. In this sense, the method of inputting and calculating a formula using the touch screen according to the above-described embodiment of the present invention is basically installed in a user terminal or implemented as an application (i.e., a program) directly installed by a user, And can be recorded on a readable recording medium.
Such a program may be recorded on a recording medium that can be read by a computer and executed by a computer so that the above-described functions can be executed.
In order to execute the formula input and calculation method using the touch screen according to each embodiment of the present invention, the above-described program may be stored in a computer language such as C, C ++, JAVA, And may include a code that is coded as a code.
The code may include a function code related to a function or the like that defines the functions described above and may include an execution procedure related control code necessary for the processor of the computer to execute the functions described above according to a predetermined procedure.
In addition, such code may further include memory reference related code as to what additional information or media needed to cause the processor of the computer to execute the aforementioned functions should be referenced at any location (address) of the internal or external memory of the computer .
In addition, when a processor of a computer needs to communicate with any other computer or server, etc., to perform the above-described functions, the code may be stored in a computer's communication module (e.g., a wired and / ) May be used to further include communication related codes such as how to communicate with any other computer or server in the remote, and what information or media should be transmitted or received during communication.
In addition, a functional program for implementing the present invention, a code and a code segment associated with the functional program, and the like are provided to programmers in the technical field of the present invention in consideration of a system environment of a computer that reads a recording medium and executes a program Lt; RTI ID = 0.0 > and / or < / RTI >
The computer-readable recording medium on which the above-described program is recorded includes ROM, RAM, CD-ROM, magnetic tape, floppy disk, optical media storage, and the like.
In addition, the computer-readable recording medium on which the above-described program is recorded may be distributed to a network-connected computer system so that computer-readable codes can be stored and executed in a distributed manner. In this case, one or more of the plurality of distributed computers may execute some of the functions presented above and send the results of the execution to one or more of the other distributed computers, The computer may also perform some of the functions described above and provide the results to other distributed computers as well.
In particular, a computer-readable recording medium storing an application that is a program for executing a method of inputting and calculating a formula using a touch screen according to each embodiment of the present invention includes an application store server, (E.g., a hard disk) included in an application provider server such as a web server associated with the application server, or may be the application providing server itself.
A computer that can read a recording medium on which an application that is a program for executing a formula input and calculation method using a touch screen according to each embodiment of the present invention is read may be a general PC such as a general desktop or a notebook computer, A tablet PC, a PDA (Personal Digital Assistants), a mobile terminal, and the like. In addition, it should be interpreted as all devices capable of computing.
Further, a computer that can read a recording medium on which an application, which is a program for executing a formula input and calculation method using a touch screen according to an embodiment of the present invention, is read is a smart phone, a tablet PC, a PDA (Personal Digital Assistants) In the case of a mobile terminal such as a terminal, the application may be downloaded from the application providing server to a general PC and installed in the mobile terminal through a synchronization program.
While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all of the components may be selectively coupled to one or more of them. In addition, although all of the components may be implemented as one independent hardware, some or all of the components may be selectively combined to perform a part or all of the functions in one or a plurality of hardware. As shown in FIG. The codes and code segments constituting the computer program may be easily deduced by those skilled in the art. Such a computer program is stored in a computer-readable storage medium, readable and executed by a computer, thereby realizing an embodiment of the present invention. As a storage medium of the computer program, a magnetic recording medium, an optical recording medium, or the like can be included.
It is also to be understood that the terms such as " comprises, " " comprising, " or " having ", as used herein, mean that a component can be implanted unless specifically stated to the contrary. But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.
The foregoing description is merely illustrative of the technical idea of the present invention and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as falling within the scope of the present invention.
Claims (13)
A second interface for inputting at least one of a first touch input that is a touch input to at least one of the plurality of numerals and expressions displayed on the first interface and a number and an equation corresponding to the touch input to the second interface, Receiving a second touch input that is a touch input to the touch input;
At least one number and an expression included in the first touch input corresponding to the second touch input are displayed in an area corresponding to the touch input for the second interface when receiving the second touch input, ; And
And calculating the calculation result of the formula displayed on the second interface and outputting the calculation result on the touch screen when receiving the touch input on the operation menu displayed on the touch screen. Input and calculation methods.
Wherein the second touch input comprises:
Is a drag and drop type input that determines that the second touch input has been performed in the released area when the first touch input is held and then released in one area of the second interface A method of inputting and calculating a formula using a touch screen.
Wherein the second touch input comprises:
A touch and drop method for determining that the second touch input has been performed by touch inputting and releasing when touch input and release for one area of the second interface are detected after the first touch input is performed, Wherein the input of the formula is performed using the touch screen.
Wherein the outputting of the second interface comprises:
And selects a plurality of numbers and expressions based on the information of the user of the user terminal among the plurality of numbers and expressions stored in the memory of the user terminal for the mathematical operation and outputs the same to the first interface. Formula input and calculation method using screen.
Wherein the outputting of the second interface comprises:
Wherein the user selects the plurality of numbers and expressions based on information on learning contents currently being learned by the user using the user terminal.
Wherein the outputting of the second interface comprises:
And dividing the first interface into a plurality of tile-shaped areas, and then outputting the plurality of numbers and the expressions to the respective tile-shaped areas.
Wherein the outputting of the second interface comprises:
And dividing the second interface into a plurality of grid-like regions, so that the numbers and mathematical expressions corresponding to the selections are output to the respective regions.
The step of performing the formula input includes:
When receiving the second touch input for at least one number corresponding to the first touch input and the second touch input, among the plurality of grid-shaped areas included in the second interface, Wherein the at least one number and the formula are automatically displayed in an area determined to be input.
Wherein the step of controlling the touch-
Extracting identification information for a plurality of numbers and expressions displayed on the second interface;
Selecting an operation content of a mathematical expression corresponding to the extracted identification information from profile dictionary data stored in a memory of the user terminal; And
And calculating a calculation result based on the selected calculation contents to calculate the calculation result.
Wherein the step of outputting to the touch screen comprises:
Wherein information on the result of processing the mathematical expression and information on error checking and scoring of the mathematical expression are calculated as the calculation result according to the contents of the mathematical expression displayed on the second interface Formula input and calculation method.
Wherein the step of outputting to the touch screen comprises:
Dividing an expression displayed on the second interface inputted through the step of performing the expression input into a plurality of expressions according to contents of the input expression; And
And calculating an operation result for each of the plurality of formulas.
A second interface for inputting at least one of a first touch input that is a touch input to at least one of the plurality of numerals and expressions displayed on the first interface and a number and an equation corresponding to the touch input to the second interface, A touch input receiving unit for receiving a second touch input which is a touch input to the touch input;
At least one number and an expression included in the first touch input corresponding to the second touch input are displayed in an area corresponding to the touch input for the second interface when receiving the second touch input, A mathematical expression input unit for performing the mathematical expression And
And an arithmetic processing unit for calculating an operation result of the expression displayed on the second interface and outputting the operation result to the touch screen when the touch input for the operation menu displayed on the touch screen is received. Formula input and calculation system.
A second interface for inputting at least one of a first touch input that is a touch input to at least one of the plurality of numerals and expressions displayed on the first interface and a number and an equation corresponding to the touch input to the second interface, Receiving a second touch input that is a touch input to the touch input;
At least one number and an expression included in the first touch input corresponding to the second touch input are displayed in an area corresponding to the touch input for the second interface when receiving the second touch input, ; And
And calculating the calculation result of the formula displayed on the second interface and outputting the calculation result on the touch screen when receiving the touch input on the operation menu displayed on the touch screen. A computer-readable recording medium having recorded thereon a program for performing an input and an operation method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020140134898A KR20160041288A (en) | 2014-10-07 | 2014-10-07 | Method and system for inputting and caculating mathmetical formula using touch screen |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020140134898A KR20160041288A (en) | 2014-10-07 | 2014-10-07 | Method and system for inputting and caculating mathmetical formula using touch screen |
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| KR20160041288A true KR20160041288A (en) | 2016-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020140134898A KR20160041288A (en) | 2014-10-07 | 2014-10-07 | Method and system for inputting and caculating mathmetical formula using touch screen |
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| KR (1) | KR20160041288A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269476A (en) * | 2020-10-28 | 2021-01-26 | 维沃移动通信有限公司 | Formula display method and device and electronic equipment |
-
2014
- 2014-10-07 KR KR1020140134898A patent/KR20160041288A/en not_active Application Discontinuation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112269476A (en) * | 2020-10-28 | 2021-01-26 | 维沃移动通信有限公司 | Formula display method and device and electronic equipment |
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