JP2651166B2 - Information processing method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an information processing method capable of processing by inputting a mathematical expression or the like as coordinate data.

[Conventional technology]

Conventionally, in an input / output integrated device as shown in an embodiment of a mathematical expression recognition device filed by the present applicant as Japanese Patent Application No. 62-194311, in order to store expressions, values, etc., "≡Y If "Y" is used in the expression after it is stored in the expression Y as in "", the mathematical expression and the value stored in the Y can be called and used.

[Problems to be solved by the invention]

However, in the above-described conventional example, when the expression written so far is stored during the input of the expression or the like, and a new expression added to the above expression is stored again, the definition signal of “≡” is input during the input. Write “定義” to write the definition variable and add the expression
This was a drawback that could only be written after deleting the definition variables. In addition, writing "@" on the right side in the definition, ie, memory, and further writing the definition variable name, and using only the above-mentioned definition variable name in the call were cumbersome and difficult for the user to understand. Also, when a new definition is re-written, the already written formula is not recalculated, so that the calculation formula has to be rewritten again.

[Means for Solving the Problems] In order to solve the above problems, the present invention is an information processing method using coordinate input means capable of inputting a desired pattern, wherein a predetermined pattern is stored in the coordinate input means. Recognizing that the predetermined pattern has been input, it is determined whether or not a mathematical expression has already been input at the position where the predetermined pattern has been input, and as a result of the determination, the mathematical expression has already been detected at the position where the predetermined pattern has been input. If the mathematical expression is input, the mathematical expression is stored so as to be associated with the predetermined pattern. If the result of the determination is that the mathematical expression is not input at the position where the predetermined pattern is input, the mathematical expression is stored. The input pattern is stored as one of the characters constituting the formula, and when the predetermined pattern is detected from the stored formula, the stored formula is associated with the predetermined pattern. And an information processing method for reading the information.

In order to solve the above problem, the present invention preferably stores numerical information in place of the mathematical expression when a numerical value is input at a position where the predetermined pattern is input,
When a numerical value is not input at the position where the predetermined pattern has been input, the predetermined pattern is stored as the part of a mathematical expression instead of the mathematical expression, and the numerical information is stored.
When the predetermined pattern is detected from the stored mathematical formula, the numerical information stored so as to be associated with the predetermined pattern is read instead of the mathematical formula.

In order to solve the above problem, the present invention preferably detects that information stored so as to be associated with the predetermined pattern has been updated, and in response to the detection of the update, the predetermined pattern Is performed as a part of the equation.

〔Example〕

FIG. 1 shows a first embodiment of the present invention, in which the features of the present invention are best shown. In FIG. 1, A is a display for performing the display shown in FIG. A possible digitizer, S10 is a recognizing means for recognizing numbers, operators, symbols, etc. from a sequence of coordinate points from the digitizer, S20 is a recognizing means S10
Is activated when the recognition result of the symbol is a symbol, and a discriminating means for discriminating whether or not the symbol has been overlaid on a mathematical expression or a numeral from the inputted symbol position and the information of the information storage means IM described later. It is activated when it is repeatedly input as a result of the means, and stores in the memory M the mathematical expression or numerical value already input at the symbol position. Similarly, after the storage operation, S40 searches the information storage unit IM for a mathematical expression including the input symbol from the mathematical expressions already input, and recalculates the relevant mathematical expression.

If the result of the recognition means S10 is equal, S50
Operates. S50 is detection means for detecting whether there is a symbol in a mathematical expression related to the recognition result equal.
As a result of the detection means S50, if there is a symbol, the numerical value reading means S60 is activated, and the memory M corresponding to the symbol is read.
Is read and replaced with the symbol in the formula.

Further, the symbol-less output of the detecting means S50 and the result of the numerical value reading means S60 are connected to the calculating means S70 and calculated. Finally, if the result of the calculating means S70, the result of the recognizing means S10 is neither a symbol nor an equal,
Output when the results of the determination do not overlap, and recalculation means S4
All the results of 0 are stored in the information storage means IM.

A part of the information means IM is connected to the display means A and is displayed.

FIG. 2 is a block diagram showing the configuration of the present embodiment, in which the same reference numerals as those shown in FIG. 1 are used. In the present invention, the control by the microprocessor is frequently used.
Is a control of the embodiment of the present invention, a control for recognizing a mathematical expression from the coordinate data inputted from the digitizer S10 in FIG.
ROM, D, in which programs such as control means of S70 to S70 are stored, is a work storage RAM required for performing the control, and includes a memory M, an information storage means IM shown in FIG.
Is a central processing unit CPU for performing the above control.

FIG. 3 shows the RAMD in which the formulas shown in FIG. 7 are stored.
It is a data structure figure of information storage means IM. Recognition of mathematical formulas, creation of data, and the like are described in detail in the specification of Japanese Patent Application No. 62-194311, and a description thereof will be omitted. In the data shown in the figure, the expressions “3 + 5 = 8” and “△ × 2 = 16” in FIG. 7 are stored as respective numeric / operation codes and code position information, and the delimiter between expressions is “7FFF ( Hex) "code. “0000 (Hex)” is used as a code indicating the end of all data. These formula data are stored starting from address 2000 of the RAM address indicated by the address in the figure. Note that the position information of the code is
This is the (x, y) coordinates of the position on the screen of the upper left corner of the 16 × 16 dot font used to display numbers and operators.

FIG. 4 is a flow chart of the storage processing of the present embodiment. The symbol is used by the user when he or she inputs a symbol {} used for storage and recall to the digitizer surface of FIG. First, at step S21, the position coordinates S (x, y) of △ are obtained, where S (x, y) is the written center (x, y) coordinates of △, and at step S22, the equation of FIG. In the data,
This is compared with the x, y position information from address 2000 to all data codes 0000H. Comparison is carried out as for example x ₁ <S (x) <a x ₁ +16. That is, it is determined whether or not S (x, y) is inside the 16 × 16 dot character font.

Up to address 2000 to all end-of-data _{x n <S (x) <} x n
If x _n and y _n satisfying +16, y _n <S (y) <y _n +16 do not exist, the process proceeds to the input routine as if a normal numeric operator or the like was input. This is the case in FIG. 7b. Also if the above-described x _n, is y _n exists proceeds to step S30. FIG. 7a
In the case of, x ₂ and y _{2 in} FIG. 3 exist. In step S30, the expression including the above-mentioned x _n and y _n is determined from the delimiter in the expression data shown in FIG. 3, and the numerical code sequence written after '=' in the expression is used as a value in the RAM shown in FIG. Is stored in the storage area M. For Figure 7 A wherein x _2, y ₂ from the third
It is assumed that the figure addresses 2000 to 2015 are the corresponding expressions, and
The numerical code 8 after the “=” in 09 is stored in the storage area M as a value. Finally, in step S40, the recalculation routine is called, the answer of the equation in which △ is used is changed, and all storage processing is completed.

FIG. 5 is a flowchart showing the operation of the present embodiment at the time of recalling a memory, which is called when a mathematical expression is written to obtain an answer with "=" or when recalculation in step S40 in FIG. First, in step S50, it is determined whether or not 計算 is included in the calculation formula to be obtained from the numbers in the formula and the operation code. If not, the process proceeds to step S70 to perform the normal calculation and finish the processing. If included, step
In S60, the value stored in the memory M is called in step S30 in FIG. 4 and replaced with △ to generate a mathematical expression that does not include △. Next, in step S70, normal calculation processing is performed, and all processing ends.

FIG. 7 is a drawing showing a display state during one operation of a device embodying the present invention, and is a display example showing an example of the present invention in an input / output integrated device in which a transparent digitizer is superimposed on a liquid crystal display. In the figure, a is drawn on an already written mathematical expression, and is drawn for storing the value of the expression. b
Is written in order to use the value of the stored expression, and the value stored at the time of calculation of the subsequently written expression is called for calculation. If another value is drawn in another place and 、 is drawn on it as shown in FIG. A, a new value is stored in 、, and the formula using 如 as shown in FIG. , The calculation result using the new value can be obtained.

As described above, if you write △ on an already written formula or value, you can store the value of the formula, and if you write it as a part of the formula in a place where nothing is written, you will call the stored value when you get the calculation result I can do it. In addition, if △ is used in another formula written at the time of storage, recalculation can be performed.

In this embodiment, the symbol “△” is used as a symbol to be stored. However, the symbol “○”, “◎”, “□”, or other special characters can be used, and it is easy to use more than one symbol. It is feasible.

[Other embodiments]

In the above embodiment, the stored value is called at the time of recalculation or calculation, but in the present embodiment, when a symbol is written in a place where nothing is written, it is called immediately and the value or expression is expanded. You. The configuration is exactly the same. FIG. 6 is a flowchart of the processing for storing and reading data in the present embodiment, which is called when the user writes "@" from the input state of a mathematical expression. The operation will be briefly described below with reference to the flowchart of FIG.

In the figure, steps S8 and S9 are exactly the same as steps S21 and S22 in FIG. 4 described in the previous embodiment, and therefore description thereof is omitted here. Therefore, if △ is written on the equation in step S9, the process proceeds to step S10, and storage is performed. Otherwise, the process proceeds to step S11, and storage and reading are performed. In step S10, the equation or the value is stored. In this case, as in the previous embodiment, if "=" is present, the calculation is performed and the value is stored. It stores all the numeric operation codes that make up the formula. Step
In S11, the stored data is read out, but all the stored numbers and operation codes are read out without being aware of the stored values or formulas, and the numbers and the numerical values are sequentially read from the position where “△” is written, as if the user had input them. Outputs the operation code. This is the end of all the processing.

With the above processing, if you write △ on the formula, it will be memorized,
If you write △ in a blank space, the stored formula or numerical value will be expanded as if it was immediately input, and the same formula,
In the case of repeatedly inputting a numerical value, it has the effect of eliminating time and effort.

[Effects of the Invention] As described above, according to the present invention, there is provided an information processing method using coordinate input means capable of inputting a desired pattern, wherein a predetermined pattern is input to the coordinate input means. Is recognized, and it is determined whether a mathematical expression has already been input at a position where the predetermined pattern has been input. As a result of the determination, a mathematical expression has already been input at a position where the predetermined pattern has been input. In this case, the mathematical expression is stored so as to be associated with the predetermined pattern, and as a result of the determination, if the mathematical expression is not input at the position where the predetermined pattern is input, the input pattern is stored. Is stored as one of the characters constituting the mathematical formula, and when the predetermined pattern is detected from the stored mathematical formula, the stored mathematical formula is read out so as to be associated with the predetermined pattern. And eliminates be forced repeatedly input formula, it is possible to provide a calculation function quick and operability.

As described above, according to the present invention, when a numerical value is input at a position where the predetermined pattern is input, the numerical information is stored in place of the mathematical expression, and the predetermined pattern is input. If a numerical value is not input at the position where the predetermined pattern is input, the predetermined pattern is detected from the stored numerical expression by storing the numerical information in place of the numerical expression as a part of the numerical expression. By reading the numerical information stored in such a manner that the numerical information can be associated with the predetermined pattern instead of the mathematical expression, the input of the numerical information does not have to be repeatedly performed. Can be provided.

As described above, according to the present invention, it is detected that information stored so as to be able to be associated with the predetermined pattern is updated, and the predetermined pattern is calculated according to the detection of the update. By executing the recalculation of the mathematical formula stored as part of the information, the user does not have to instruct the user to calculate the already calculated mathematical formula according to the update of the information associated with the pattern, and the latest stored information Can be provided.

[Brief description of the drawings]

FIG. 1 is a diagram showing features of the present invention. FIG. 2 is a block diagram of an embodiment of the present invention. FIG. 3 is a diagram of mathematical formula data in a memory of the embodiment of the present invention. FIG. 4 is an embodiment of the present invention. FIG. 5 is a flowchart of a storage and reading process according to an embodiment of the present invention. FIG. 6 is a flowchart of a storage, reading and processing according to an embodiment of the present invention. Example a: Symbol input for storage b: Symbol input for storage read

Claims (3)

(57) [Claims] 1. An information processing method using coordinate input means capable of inputting a desired pattern, comprising: recognizing that a predetermined pattern has been input to said coordinate input means; In the position, it is determined whether or not a mathematical expression has already been input, and as a result of the determination, if the mathematical expression has already been input at the position where the predetermined pattern has been input, the mathematical expression is referred to as the predetermined pattern. If a mathematical expression is not input at the position where the predetermined pattern is input, the input pattern is stored as one of the characters constituting the mathematical expression. An information processing method, wherein when the predetermined pattern is detected from the stored mathematical expression, the stored mathematical expression is read so as to be associated with the predetermined pattern. 2. When a numerical value is input at a position where the predetermined pattern is input, the numerical information is stored in place of the mathematical expression, and a numerical value is input at a position where the predetermined pattern is input. If not, the predetermined pattern is replaced with the mathematical expression as a part of a mathematical expression, and the numerical information is stored.When the predetermined pattern is detected from the stored mathematical expression, the numerical expression is replaced with the mathematical expression. 2. The information processing method according to claim 1, wherein the numerical information stored so as to be associated with the predetermined pattern is read. 3. Detecting that information stored so as to be associated with the predetermined pattern is updated, and storing the predetermined pattern as a part of a mathematical expression in response to the detection of the update. 2. The information processing method according to claim 1, wherein a recalculation of a mathematical expression is performed.