JPS63233465A - Input display system for numerical format code - Google Patents

Abstract

PURPOSE:To input a complex numerical formula with simple operation and to make a numerical formula displayed on a screen coincide with a real image to make input check or correcting work easy by using display code corresponding to a symbol pattern for a numerical format code. CONSTITUTION:In case of inputting a matrix and a root formula written in an input original 10, a display code data input means 1 for inputting parentheses symbols ( ) of the matrix or a root symbol sq. rt. is used. In case of a matrix, the data of the matrix are written in a data storing means 12 by inputting a left parenthesis symbol, data and a right parenthesis symbol successively. A pattern generating means 13 reads out the contents of the data storing means 12 successively, executes the pattern processing of numerical formats correspond ing to the read data and outputs the formed dot pattern data to a display means 14 to display the data on its screen.

Description

[Detailed Description of the Invention] (Summary) In conventional data processing devices, mathematical symbols are replaced with words and input as character strings, making it difficult to confirm or modify input mathematical formulas. We create display symbols that are close to commonly used mathematical symbols, and use these to facilitate the input and display of variable-sized mathematical symbols.

[Industrial application field]

The present invention relates to a data processing device capable of processing mathematical expressions, and particularly to a method for inputting and displaying mathematical symbols.

If the formula is in fraction form and spans multiple lines,
In the case of symbols, parentheses, etc., in which a large number of elements are included, it is necessary to check the input formula by looking at the two-dimensional connections between the elements.

The present invention provides a display format that facilitates confirmation and correction of the input of a mathematical formula, and a code format that allows modification and processing of the input mathematical formula, and a mathematical symbol.

[Conventional technology]

In conventional data processing devices, all mathematical expressions to be processed are expressed in character strings, and mathematical symbols such as square root symbols and matrix parentheses are also converted into words as shown in the example below, and are expressed in a fixed form. entered and displayed under

ff Ding -ROOT (2a) In this way, the method of expressing mathematical expressions as character strings allows easy input using general data input means such as a keyboard, and when analyzing mathematical expressions with a compiler, processing It has the advantage of being easy to use.

[Problem that the invention seeks to solve]

In conventional formula input and display methods, formulas are converted into character strings and are expressed in a -dimensional format.

Compared to the regular expression format used for -a, especially when the structure of the entire expression is 'aML' or has a two-dimensional extension, such as a high-order matrix, fractional expression, integral expression, etc. , perform a confirmation check on the entered formula 1
There was a problem that input errors were likely to occur.

On the other hand, it is conceivable to input the mathematical formula as image data in its normal representation format, but in that case, the image data of the mathematical formula would be expanded and stored in bitmap memory, which would complicate operations when modifying the mathematical formula. When analyzing a pattern, there was a problem in that pattern recognition processing had to be performed first.

[Means for solving problems]

The present invention makes it possible to input and display mathematical expressions in a format close to the commonly used expression format.

It provides a means to store data in a format that is easy to process internally.

Therefore, one aspect of the present invention defines a display symbol associated with a symbol pattern of each mathematical symbol used in a mathematical formula, and uses this to enable encoding of the mathematical symbol and generation and restoration of the corresponding symbol pattern.

FIG. 1 shows the basic configuration of the present invention.

In FIG.

Reference numeral 10 is a two-input manuscript in which 9 numerical formulas are written in a normal notation format.

Reference numeral 11 denotes a single display symbol data input means, and input means such as a keyboard, a tablet, an icon, etc. in which various display symbols are displayed as symbols can be used.

The size of display symbols is determined to be one size per type, and mathematical symbols whose size changes depending on the number of elements such as variables inserted into the symbol, such as the parenthesis symbol () of a matrix or the root symbol -1, etc. , specify the display size by inputting the display symbol of the corresponding symbol twice at the start position and end position.

Reference numeral 12 denotes a data storage means in which data such as mathematical formulas inputted from the 1 display symbol data input means 11 is stored in a code format.

13 is a pattern generation means, and data storage means 12
Read input data stored in .

Generate a dot pattern for the corresponding data. If the data is a display symbol code, a symbol pattern of the corresponding mathematical symbol is generated with 9 characters.

For numeric codes, a pattern for that font is generated. In the case of a display symbol whose size is variable, the size of the mathematical symbol to be restored is calculated from the starting and ending positions where the 9 display symbol is set, and a dot pattern of the corresponding size is generated.

I4 is a 2-display means, which outputs and displays an image corresponding to the input data based on the tone pattern data generated by the pattern generation means 13.

Reference numeral 15 denotes a data utilization means, which is an input/output 'Af' for filing input data stored in the data storage means 12.
It can be a processing device such as a fi, a communication device, or a compiler.

(Function) However, in this case, using the display symbol data input means 11, the input operation is performed as Gl(I)J (21rF-2ar--J), and the resulting code, 9th line, and digit position are input. Appropriate 'Ml?il information (coordinate information or information such as line feed, space, etc.) indicating this is output and stored in the data storage means 12!3.

For vertically long symbols such as the sum symbol Σ and the integral symbol f, codes are written so that one display symbol occupies multiple positions spanning multiple lines.

The pattern generation means 13 reads out and scans the code at one digit position in a sequential row of the data storage means 12.

A pattern generation process corresponding to each code is performed, and the generated tone pattern data is outputted to one display means 14 via a bitmap memory, for example, and displayed on one screen.

〔Example〕

FIG. 2 shows the configuration of one embodiment of the present invention. This embodiment is an example in which an icon is used as a single display symbol data input means.

In FIG. 2, 21 is a mouse, 22 is a mouse input unit,
23 is an icon control unit, 24 is an icon table, 25
is a keyboard, 26 is a keyboard input section, 27 is a data memory, 28 is a pattern generation section, 29 is a character pattern table, 30 is a display symbol pattern table, 31 is a bitmap memory, 32 is a display control section, and 33 is a CRT display. be.

In the icon table 24, a list of display symbols as shown in FIG. 3, which will be described later, is registered in the form of two.

Further, the character pattern table 29 has registered dot patterns of nine commonly used fonts for letters, numbers, and symbols, and the two display symbol pattern table 30 has registered symbol patterns for two display symbols.

At the start of processing, the icon control unit 23 reads out the list of display symbols in the icon table 24.

Edit as icon data and display on CRT display 33
Set a certain screen area, for example, a band-shaped area at the bottom or right end of the screen, as the icon display area.

The icon data is written in the corresponding area of the data memory 27.

The pattern generation unit 28 reads and scans the data memory 27, and uses each display symbol code in the icon data to create a pattern.
Refer to the display symbol-pattern table 30 and generate a corresponding symbol pattern.

Write to the corresponding area of bitmap memory 31.

The display control unit 32 reads and scans the bitmap memory 31, and outputs and displays the data on the CRT display 33.

As a result, an icon is displayed on the screen of the CRT display 33.

Next, the operator uses the mouse 21 to point to a desired icon and its input position on the screen, or uses the keyboard 25 to input English letters.

Enter numbers, symbols, etc.

The coordinates of the icons and input positions pointed by the mouse 21 are detected by the mouse input section 22 and notified to the icon control section 23 .

The icon control unit 23 identifies the corresponding display symbol from the coordinates of the notified icon, and writes the code to the address of the data memory 27 corresponding to the designated input position.

The display symbol code written into the data memory 27 is
It is immediately converted into the symbol pattern by the pattern generation section 28, written into the bitmap memo I731, and displayed on the CRT display 33. Sunawa 52
The input of one display symbol is completed.

Similarly, data such as characters and numbers entered from the key fob 25 are also written into the data memory 27.

It is displayed on the CRT display 33.

Furthermore, the pattern generation unit 28 also performs display symbol analysis and symbol pattern generation processing for mathematical expression symbols whose size is variable as explained in FIG. ``In this way, you can input any numerical formula and display it twice.

FIG. 3(A) and FIG. 3(B) show a list of nine display symbols used in this embodiment and examples of their application.

Figure 3 (A) Width 1 Display symbols indicated by numbers 1, 2.3 are a group of vertical display symbols using 3 rows and 1 digit of 2 screens, and display symbols indicated by numbers 4 to 7 are , is a group representing mathematical symbols of variable size with two-dimensional extension. After this, the display symbols of the old groups are set at the starting and ending positions taken on the diagonal of Type 9.

Defines the two-dimensional size of mathematical symbols.

In FIG. 3(B), the group of display symbols numbered 1, 8, 9, and 10 represents mathematical symbols whose length in the vertical direction is variable,
By entering the display symbol at the top and bottom,
Specify vertical length. Further, the group of display symbols numbered 11 to 15 represents mathematical symbols whose horizontal length is variable,
By inputting and setting display symbols on the left and right ends,
Specify horizontal length.

[Effects of the Invention] According to the present invention, by using one display symbol, complex mathematical formulas can be input and displayed on the screen with simple input operations, and the mathematical formulas displayed on one screen are the same as the actual image. Therefore, input confirmation and correction work becomes easier, input processing can be made significantly more efficient, and the reliability of input data can also be improved.

[Brief explanation of drawings]

Figure 1 is a basic configuration diagram of the present invention, Figure 2 is a configuration diagram of one embodiment of the present invention, and Figure 3 (Δ) and Figure 3 (B) are a list of display symbols used in the embodiment of the present invention. FIG. 4 is an explanatory diagram showing an example of application. In Figure 1. IO = Input manuscript 11: Display symbol Data input means 12: Data record 12 means 13: Pattern generation means 14: Display means 15: Data utilization means Patent applicant Fujitsu Co., Ltd. Chief brewer Masato
Patent Attorney Necessity Fumihiro (one other person) Principle structure of the present invention No. 1 List of figure display symbols and examples of repeated use (°C 1) Fig. 3 (A)

Claims (1)

[Scope of Claims] In a data processing device that processes mathematical formulas and in which the data input position on the screen is defined by the coordinates of character lines and digits, each mathematical symbol such as a function symbol has a symbol in a commonly used notation format. Display symbol data input means (11) that allows display symbols with patterns to be specified arbitrarily and allows these display symbols to be input at arbitrary screen coordinates.
and a data storage means (12) for storing display symbols input using the display symbol data input means (11) in code format in correspondence with designated screen coordinates; and storing the display symbols in the data storage means (12). pattern generation means (13) for reading display symbols in the code format and generating dot patterns of corresponding mathematical symbols; and display means (13) for displaying symbol patterns of display symbols generated by the pattern generation means (13). 14) When inputting a mathematical symbol whose size is variable, use the display symbol data input means (11) to insert the corresponding display symbol at the predetermined starting and ending ends of the mathematical symbol. The pattern generating means (13) calculates the size of the mathematical symbol from the coordinates of the starting end and the ending end where the display symbol is input, and generates a corresponding dot pattern. input display method.