JP4935332B2 - Fraction input display device and fraction input display program - Google Patents

Description

  The present invention relates to a fraction input display device and a fraction input display program for displaying input fractions.

Conventionally, in a scientific calculator that executes the calculation of various input mathematical formulas and displays the calculation results, the display format with a small number of lines (hereinafter referred to as “one-line display format”) is used as a display format for the input mathematical formulas. And a display format (hereinafter referred to as “natural display format”) represented in general textbooks and books. For example, to represent the square of a, the one-line display format displays "a ^ 2", is displayed as "a ^2" in the natural display format. In recent scientific calculators, a natural display format has been adopted from the viewpoint of facilitating understanding of mathematical expressions having a complicated configuration.

By the way, as a mathematical formula input to such a scientific calculator, there is a so-called fractional number (for example, see Patent Document 1). Here, the common fraction is a fraction in which the denominator and numerator are further fractions.
JP-A-4-252351

However, when displayed in plain natural display format Shigeru fractional input, for example, FIG. 1 3 (a), (b), the formula that the user's intention "(3/4) / 5" met However, even if “3 / (4/5)”, the displayed mathematical expression is “3/4/5”, and the content of the fractional number cannot be understood. In FIG. 1 3 (a), (b ), for reference, illustrates a formula that intended by the user on the right side of FIG.

  The subject of this invention is providing the fraction input display apparatus and fraction input display program which can display the content of the input fractional number so that understanding is possible.

The invention described in claim 1
A numerical value input means for receiving an input operation of each numerical value in a fractional number from the user;
Contour line input means for receiving an input operation of each spline in the fractional number from the user,
A fraction number display means for displaying a fraction number including each numerical value input by the numerical value input means and each tie line input by the tie line input means;
The fraction display means is
When displaying a tie line input by the tie line input means, an already-input tie-line expansion display control means for expanding and displaying each other tie line already input;
When an input operation is further performed by the tie line input means for the same tie line that has already been input, the tie line extension display control is performed to expand and display this tie line according to the number of input operations for the tie line. Means,
It is characterized by having.

The invention according to claim 2 is the fraction input display device according to claim 1,
When an input operation is further performed on the same connected line by the connected line input means, the connected line is expanded and displayed, and another input having the same length as the expanded connected line is displayed. The already-input tie-line shrinkage display control means for shrinking and displaying the tie-line of
It is characterized by providing.

The invention according to claim 3 is the fraction input display device according to claim 1 or 2,
An input position changing means for receiving an input position changing operation from a user;
When a tie line input operation is performed on the position of a numerator or denominator value in a fraction by the tie line input means, this fraction is made into a fractional number by inputting a tie line with that value as the denominator. A fraction input control means;
It is characterized by providing.

The invention according to claim 4 is the fraction input display device according to claim 1 or 2,
An input position changing means for receiving an input position changing operation from a user;
An arithmetic symbol input means for receiving an arithmetic symbol input operation from a user;
Fractional number that is input by inputting a concatenated line with the mathematical expression part connected by the arithmetic symbol as the denominator when the superscript input operation is performed with respect to the position of the arithmetic symbol by the connecting line input means. A fractional expression input control means with a fractional expression,
It is characterized by providing.

The invention according to claim 5 is the fraction input display device according to claim 4,
The fractional expression input control means includes:
When an input operation by the tie-line input means is further performed n times (n is a natural number of 1 or more) with respect to the same tie line that has been input to the position of the arithmetic symbol,
A denominator formula changing means for changing a formula portion linked by each computation symbol from the computation symbol to the first computation symbol by n pieces from this computation symbol to the denominator of the fractional expression in the inputted mathematical formula It is characterized by having.

The invention according to claim 6 is the fraction input display device according to claims 1 to 5,
The fraction display means is
In addition to displaying a predetermined tie line symbol as a tie line, and displaying the length of the tie line by the number of the tie line symbols, it has one line display means for displaying the input fraction in a one line display format. And

The invention according to claim 7 is the fraction input display device according to claims 1 to 5,
The fraction display means is
Displays a predetermined tie line symbol as a tie line, and displays the length of the tie line by the number of tie line length display symbols attached to the tie line symbol, thereby displaying the input fraction in one line display format It is characterized by having a one-line display means for displaying.

The invention according to claim 8 is the fraction input display device according to claims 1 to 7,
Further, the present invention is characterized by comprising a fraction number calculation means for converting a fraction number into an equivalent value or a mathematical expression based on the length of each tie line and displaying it on the fraction number display means.

The invention according to claim 9 is provided in a computer.
Numeric input function that receives input of each numeric value from the user in the fraction,
A superscript input function that receives an input operation of each superscript from the user,
Realizing a fraction number display function for displaying a fraction number including each numerical value input by the numerical value input function and each tie line input by the tie line input function;
The fraction display function is
When displaying a tie line input by the tie-line input function, an already-input tie-line extension display control function for extending and displaying each other tie-line already input;
When an input operation is further performed for the same tie line already input by the tie line input function, this tie line extension display control is performed to expand and display this tie line according to the number of input operations for the tie line. Function and
It is characterized by having.

  According to the first and ninth aspects of the present invention, when an input tie line is displayed, each other tie line already input is displayed in an expanded manner, and further input operation is performed for the same tie line. When this is done, the tie line is expanded and displayed according to the number of input operations on the tie line, so that the content of the input fractional number can be understood from the display content. That is, it is possible to display the content of the input fraction number so that it can be understood.

Hereinafter, a scientific calculator to which a fraction input display device according to the present invention is applied will be described with reference to the drawings.
[1. Constitution]
[1.1 External configuration]
FIG. 1 shows a front view of the scientific calculator 1.
As shown in this figure, the scientific calculator 1 includes various key groups 2 and a display 3.

  The various key group 2 is a key group for receiving an input operation of a numerical expression component such as a numerical value or an arithmetic symbol from a user or an instruction operation of various processes, and a plurality of key groups each assigned a specific function. Has a key. In the present embodiment, the various key groups 2 include a numeric key 20, an operation symbol key 21, an EXE key 22, a cursor key 24, a parenthesis key 25, a fraction key 26, and the like.

  Among these, the numerical key 20 is a key for receiving a numerical value input operation, and the operation symbol key 21 is a key for receiving an input operation of an operator when performing four arithmetic operations, an integral operation, a logarithmic operation, an exponential operation, or the like. The EXE key 22 is a key for instructing the scientific calculator 1 to execute processing or determine, and for example, functions as a key for instructing execution of arithmetic processing after inputting a mathematical expression.

  The cursor key 24 is a key that is pressed when the cursor CR (see FIG. 6 or the like) indicating the input position is moved or when a function is selected. It is configured to allow input. The parenthesis key 25 is a key for receiving an input operation of an opening parenthesis and a closing parenthesis.

  The fraction key 26 is a key for inputting a fraction. More specifically, the fraction key 26 is a key for receiving an input operation of a connecting line K (see FIG. 6 and the like) having a numerical value or a mathematical expression designated by the cursor CR as a denominator. . The numerical value or mathematical expression specified by the cursor CR may be a numerical value or mathematical expression positioned immediately before or after the cursor CR, or may be a numerical value or mathematical expression specified by the cursor CR, but in the present embodiment, The numerical value and the mathematical expression are located immediately before the cursor CR.

  The display 3 is a portion on which various data necessary for using the scientific calculator 1 are displayed in addition to characters, codes, mathematical expressions, calculation results, and the like in response to pressing of the various key groups 2. The display 3 in the present embodiment is described as being composed of dot matrix liquid crystal, but may be another display device such as TFT (Thin Film Transistor) liquid crystal or PDP (Plasma Display Panel). Of course.

[1.2 Functional configuration]
Next, the functional configuration of the scientific calculator 1 will be described.
FIG. 2 is a block diagram showing a functional configuration of the scientific calculator 1. As shown in this figure, the scientific calculator 1 includes functional units such as an input unit 4, a display unit 5, a flash ROM (Read Only Memory) 6, a RAM (Random Access Memory) 7, and a CPU (Central Processing Unit) 8. Each functional unit is connected by a bus 10.

[1.2.1 Input / output unit, etc.]
The input unit 4 includes the various key groups 2 described above, and outputs a signal of a pressed key to the CPU 8.
The display unit 5 includes the above-described display 3 and displays various information on the display 3 based on signals from the CPU 8.

[1.2.2 Storage device]
The flash ROM 6 stores various programs related to operations such as menu display processing, various setting processing, various arithmetic processing, etc. in the scientific calculator 1, programs for realizing various functions provided in the scientific calculator 1, etc. In the embodiment, a fraction input display program 60 is stored.

  The fraction input display program 60 is a program for causing the CPU 8 to execute a fraction input process (see FIG. 3), a fractional number input process (see FIG. 4), and a fractional expression input process (see FIG. 5) which will be described later.

  The RAM 7 is a memory that can be written at any time to temporarily hold various programs executed by the CPU 8 and data related to the execution of these programs, for example, mathematical expressions input by the user. In the present embodiment, the RAM 7 A length level storage table 70 is provided.

  The tie line length level storage table 70 stores a tie line number and a length level in association with each other.

Here, the connecting line number is a number indicating the input order of the connecting line K. For example, the number of the connecting line K ₁ input _first is “1”, and the connecting line K ₂ input _second. The number is “2”. For example, in the notation of “superscript K ₁ ”, the subscript “1” indicates the superscript number (input order) of the superscript K.

  The length level is a parameter indicating the length of the connecting line, and is set based on the number of times the fractional key 26 is operated for the same connecting line. In the present embodiment, the value of the length level is a natural number, and the larger the value, the longer the tie line.

[1.2.3 CPU]
The CPU 8 executes processing based on a predetermined program in accordance with an input instruction, and transfers instructions and data to each functional unit. Specifically, the CPU 8 reads a program stored in the flash ROM 6 in response to an operation signal input from the input unit 4, and executes processing according to the program. Then, the CPU 8 appropriately outputs a display control signal for displaying the processing result to the display unit 5 to display the corresponding information.

[2 operations]
Next, the operation of the scientific calculator 1 when the fraction input display program 60 is executed by the CPU 8 will be described.

  3 to 5 are flowcharts for explaining the operations of the fraction input process, the fraction input process, and the fractional expression input process that the CPU 8 reads out and executes the fraction input display program 60 from the flash ROM 6.

[2.1 Fraction input processing]
First, the operation of the scientific calculator 1 when a fraction is input will be described.
First, as shown in FIG. 3, after a mathematical expression is input via the input unit 4, the cursor CR (see FIG. 6) is placed immediately after an arbitrary numerical term by operating the cursor key 24 (step S <b> 6). S11), when the fraction key 26 is operated (step S12), the CPU 8 displays on the display 3 a tie line K _{1 of} length level “1” (see FIG. 6) with the numerical term immediately before the cursor CR as the denominator. It is displayed, and displays the cursor CR to the top of the Kukusen K ₁ (step S13).

  When a numerator numeric term is input via the input unit 4 (step S14), the CPU 8 displays the numeric term on the numerator portion and ends the fraction input process. In step S14, mathematical expressions may be input instead of numerical terms.

[2.1.1 Operation example]
For example, as shown in FIGS. 6A and 6B, after the numeric term “4” is input and the cursor CR is placed immediately after the numeric term “4” (step S11), the fraction key 26 is operated. When (step S12), the with Kukusen K ₁ is displayed on the display 3 of the numerical section "4" in length level "1" to the denominator, the cursor CR is displayed at the top of Kukusen K ₁ (Step S13). Then, as shown in FIG. 6C, when the numerical term “3” is input, the numerical term “3” is displayed in the numerator portion.

[2.2 Fractional number input processing]
Next, the operation of the scientific calculator 1 when a fractional number is input will be described.
First, as shown in FIG. 4, in a state where a fraction is input, after the cursor CR is arranged immediately after an arbitrary numerical term in the fraction by operating the cursor key 24 (step S <b> 21), the fraction key 26 is operated. Then (step S22), the CPU 8 causes the display 3 to display a tie line K _x (x is a natural number of 2 or more) having a length level of “1” with the numerical term immediately before the cursor CR as the denominator. It displays the cursor CR to the top of the line K _x (step S23). In addition, the CPU 8 raises the length level of the other already entered tie lines K _{1 to} K _x- 1 one by one to change the display content of the display 3 and also the information in the tie line length level storage table 70. Update.

Next, the CPU 8 determines whether or not the fraction key 26 is further operated, that is, whether or not the fraction key 26 is operated for the tie line K _x (step S24). S24; Yes), it is determined whether the length level Kukusen K _x in Kukusen length level storage table 70 is the highest level within minutes (step S25).

Kukusen with the; (No Step S25), the CPU 8 raises one length level Kukusen K _x In this step S25, if the length level of the Kukusen K _x is determined not to be the highest level Among K _{1 to} K _x−1 , the length level of the connecting line K having the same length as the extended connecting line K _x is lowered by 1, that is, the length between the two connecting lines K _x and K is increased. After changing the level and changing the display content of the display 3 and updating the information in the connecting line length level storage table 70 (step S26), the process proceeds to step S24.

On the other hand, when the length level Batch line K _x in step S25 is determined to be the highest level in the fraction; the (step S25 Yes), CPU 8 is the length level Kukusen K _x "1" After returning, the length of each of the other connecting lines K _{1 to} K _x-1 is raised one by one to change the display content of the display 3 and the information in the connecting line length level storage table 70 is updated ( Step S27), the process proceeds to step S24.

  If it is determined in this step S24 that the fraction key 26 is not operated (step S24; No), the CPU 8 displays the numerical value input by the numerical key 20 on the numerator portion (step S28), and inputs the fractional number. The process ends. In step S28, a mathematical expression may be input instead of the numerical term.

[2.2.1 Operation example]
For example, as shown in FIG. 7A, in a state where the fraction “3/4” is input, after the cursor CR is placed immediately after the numerical term “3” of the numerator in the fraction (step S21), the fraction When the key 26 is operated (step S22), a tie line K ₂ having a length level “1” having the numerical value term “3” as a denominator is displayed on the display 3 and a cursor is placed above the tie line K _2. CR is displayed (step S23). In addition, the input tie line K ₁ is changed to the length level “2” and displayed on the display 3. When the numerical section "2" is inputted by operating the numerical keys 20 (step S24; No), as shown in FIG. 7 (b), the numerical section "2" is the moiety of Kukusen K ₂ It is displayed (step S28). In FIG. 7 and FIG. 8 described later, the mathematical formula intended by the user is shown on the right side of the figure for reference.

Next, when the fraction key 26 is further operated from the state of FIG. 7B (step S22), as shown in FIGS. 8A and 8B, the length with the numeric term “2” as the denominator is obtained. A tie line K ₃ of level “1” is displayed on the display 3 and a cursor CR is displayed above the tie line K ₃ (step S23). In addition, the length levels of the already entered lines K ₁ and K ₂ are changed to “3” and “2” and displayed on the display 3.

Next, when the fraction key 26 is further operated once (step S24; Yes), as shown in FIG. 8C, the tie line K ₃ is set to the length level “2” and the tie line K ₂ is set to be long. The level is changed to “1” and displayed on the display 3 (step S26).

Next, when the fraction key 26 is further operated once (step S24; Yes), as shown in FIG. 8D, the tie line K ₃ is set to the length level “3” and the tie line K ₁ is set to be long. The level is changed to “2” and displayed on the display 3 (step S26).

When the fraction key 26 is further operated (step S24; Yes), as shown in FIG. 8 (a), the tie line K ₃ is set to the length level “1” and the tie line K ₂ is set to the length level “1”. 2 "is displayed is changed to Kukusen K ₃ length level" 3 "on the display 3 (step S27).

[2.3 Fractional expression input process]
Next, the operation of the scientific calculator 1 when a fractional expression is input will be described. In addition, although a fractional expression means the fraction which contains a numerical formula in a denominator or a numerator, the fractional expression input process in this embodiment is a process in the case of inputting the fraction which contains a numerical formula in a denominator.

First, as shown in FIG. 5, after a mathematical expression is input via the input unit 4 (step S31), the cursor CR is placed immediately after any arithmetic symbol in the mathematical expression by operating the cursor key 24. (Step S32) When the fraction key 26 is operated (Step S33), the CPU 8 displays a tie line K ₁ with the mathematical expression part connected by the arithmetic symbol immediately before the cursor CR as the denominator, and the tie line K _The cursor CR is displayed on the top of ₁ (step S34). In addition, the expression part connected by the operation symbol means an expression part composed of the operation symbol and numerical values positioned before and after the operation symbol in the entire inputted expression.

Then, CPU 8 determines whether or not the fraction key 26 is further operated, i.e. determines whether fraction key 26 is operated for Kukusen K ₁ (step S35), if it is determined to have been operated (step S35; Yes), it is determined whether includes head portion of the entire formula in the denominator located below the Kukusen K ₁ (step S36).

  If it is determined in step S36 that the head portion is included (step S36; Yes), the CPU 8 proceeds to the process of step S34, and if it is determined that the head portion is not included (step S36; No). ), After adding the mathematical expression part connected by the previous operation symbol to the denominator (step S37), the process proceeds to step S35. Thus, when the fractional key 26 is further operated n times (n is a natural number of 1 or more) for the same tie line K that has been input to the position of the arithmetic symbol, The mathematical expression part connected by each operation symbol from the operation symbol to the first operation symbol n times from this operation symbol is changed to the denominator.

  If it is determined in this step S35 that the fraction key 26 is not operated (step S35; No), the CPU 8 displays the numerical value input by the numerical key 20 on the numerator portion (step S38), and inputs the fractional expression. The process ends. In step S38, a mathematical expression may be input instead of the numerical term.

[2.3.1 Operation example]
For example, as shown in FIGS. 9A and 9B, in a state where the mathematical expression “1 + 3 × 4 + 5 ÷ 2” is input (step S31), the cursor CR immediately after the third operation symbol “+” in the mathematical expression. after but arranged (step S32), the fraction key 26 is operated (step S33), the mathematical expression part "4 + 5" tied in the operation symbol "+" in Kukusen K ₁ is a display 3 to the denominator while being displayed, the cursor CR is displayed at the top of the Kukusen K ₁ (step S34).

  Next, when the fraction key 26 is further operated once (step S35; Yes), as shown in FIG. 9C, the third operation symbol “+” initially designated by the cursor CR and its The mathematical expression portion “3 × 4 + 5” linked with the previous operation symbol “×” is changed as the denominator (step S37).

  Next, when the fraction key 26 is further operated once (step S35; Yes), as shown in FIG. 9D, the third operation symbol “+” initially designated by the cursor CR and its The mathematical expression portion “1 + 3 × 4 + 5” connected by the previous operation symbol “×” and the previous operation symbol “+” is changed as the denominator (step S37).

  When the fraction key 26 is further operated (step S35; Yes), as shown in FIG. 9 (b), the mathematical expression portion linked by the third operation symbol “+” initially designated by the cursor CR. “4 + 5” is changed as the denominator (step S34).

  When the EXE key 22 is operated in the above-described fractional number input process and fractional expression input process, the CPU 8 converts the fractional number into an equivalent value or mathematical expression based on the length of each connecting line and displays it. 3 is displayed.

  According to the scientific calculator 1 described above, as shown in steps S23 and S26 of FIG. 4 and FIG. 8, when the input tie line K is displayed, each other tie line K that has been input is expanded. In addition, when an input operation is further performed on the same tie line K, the tie line K is expanded and displayed according to the number of input operations on the tie line K. This makes it possible to understand the contents of a certain fraction from the displayed contents. That is, it is possible to display the content of the input fraction number so that it can be understood.

  Further, as shown in step S26 of FIG. 4 and FIG. 8, when the input operation is further performed on the same wrapping line K that has already been input, the wrapping line K is expanded and displayed, and after the expansion, Since the other inputted tie lines K having the same length as the tie line K are displayed in a contracted manner, the contents of the input fractional numbers are displayed in an understandable manner regardless of the input order of the tie lines K. be able to.

  Also, as shown in step S22 of FIG. 4 or FIG. 8, when an input operation of the tie line K is performed with respect to the position of the numerical value of the numerator or denominator in the fraction, the tie line K having the numerical value as the denominator is set. By inputting, this fraction is made into a fractional number. Therefore, even when the fractional number is entered, each numerical value of the fractional number can be entered in the order of the denominator and the numerator. That is, the input can be facilitated by the amount that each numerical value can be input in the same order as when reading fractions (reading aloud).

  In addition, as shown in step S12 of FIG. 3, step S32 of FIG. 4, FIG. 7, etc., when the fraction key 26 is operated, a tie line K having the value immediately before the cursor CR as the denominator is input. For example, it is possible to simplify the fraction input operation as compared with the case where the numerical value as the denominator is designated as the range and the input operation of the tie line K is performed.

  Also, as shown in step S33 of FIG. 5 and FIG. 9, when an input operation of the tie line K is performed on the position of the operation symbol, the expression part linked by the operation symbol is used as the denominator. By inputting the line K, the input fraction is converted into a fractional expression. Compared to the case where the entire line is designated by a range or enclosed in parentheses, and the input operation of the connection line K is performed. Thus, the fractional expression input operation can be simplified.

  Further, as shown in step S37 of FIG. 5 and FIG. 9, the input operation is performed n times (n is a natural number of 1 or more) for the same tie line K in which the input operation is performed on the position of the arithmetic symbol. In this case, in the entered mathematical formula, the mathematical formula portion connected by each computation symbol from the computation symbol to the first computation symbol by n pieces from this computation symbol is changed to the denominator. Compared with the case where the entire mathematical expression portion connected by each operation symbol is designated as a range and the input operation of the superscript K is performed, the fractional expression input operation can be further simplified.

  The present invention is not limited to the above-described embodiment, and various improvements and design changes may be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the fraction input display device according to the present invention has been described as being applied to a scientific calculator. However, the present invention is applicable to other electronic devices such as a mobile phone, a personal computer, an electronic clock, and a PDA (Personal Digital Assistants). It may be applied.

  Moreover, although fraction was demonstrated as displaying in a natural display format, as shown in FIG. 10, it is good also as displaying in a 1 line display format, for example. Here, in Fig. 10, a predetermined tie line symbol "" "is displayed as a tie line, and the tie line length is indicated by the number of the tie line symbol" "". The contents of the input fractions can be understood from the display contents, so that the contents of the input fractions can be displayed in an understandable manner without using parentheses to make the contents of the fractions easier to understand. In this case, as shown in Fig. 11 (a), after a fractional number including a series of concatenated symbols "" "is input via the input unit 4 (step S41, FIG. When the EXE key 22 is operated (step S42), the CPU 8 converts the fractional number into an equivalent value or a mathematical expression on the display 3 based on the continuous number of each concatenated symbol "" ". (See step S43, FIG. 10B)

  Similarly, for example, as shown in FIG. 12, the fraction may be displayed in a one-line display format. Here, in FIG. 12, the superscript symbol “” ”is displayed as a superscript, and the superscript length is indicated by the number of predetermined superscript length display symbols“ _ ”added to the superscript symbol“ ””. Even in this case, the contents of the input fractions can be understood from the displayed contents, so that the entered fractions can be entered without using parenthesis symbols to make the contents of the fractions easier to understand. The content of the fraction can be displayed in an understandable manner, and in this case, as shown in Fig. 11 (b), the fractional number including the continuation line symbol "" "is input via the input unit 4. When this is done (step S51), the CPU 8 detects the continuation of the superscript symbol "" "and replaces the superscript symbol" "" other than the last one with the superscript length display symbol "_" (step S52, FIG. 12 (a) and (b)), and when the EXE key 22 is further operated (step S53). The CPU 8 converts the fractional number into an equivalent value or a mathematical expression based on the consecutive number of each of the superscript symbols “” ”and the superscript length display symbol“ _ ”, and displays them on the display 3 (step S54, (Refer FIG.12 (c)).

It is a front view of a scientific calculator to which the fraction input display device according to the present invention is applied. It is a block diagram of a scientific calculator to which the fraction input display device according to the present invention is applied. It is a flowchart which shows the operation | movement which concerns on a fraction input process. It is a flowchart which shows the operation | movement which concerns on the fraction number input process. It is a flowchart which shows the operation | movement which concerns on a fractional expression input process. It is a figure which shows the screen transition in a fraction input process. It is a figure which shows the screen transition in the fraction number input process. It is a figure which shows the screen transition in the fraction number input process. It is a figure which shows the screen transition in a fractional expression input process. It is a figure which shows the fraction number displayed with a 1 line display format. It is a flowchart which shows the operation | movement which concerns on the fraction calculation process in case the fraction number is input by a 1 line display format. It is a figure which shows the fraction number displayed with a 1 line display format. It is a figure which shows the display screen of the fractional number in the conventional scientific calculator.

Explanation of symbols

1. Scientific calculator (fractional input display device, computer)
3 Display (Frequency display means, single line display means)
8 CPU (existing input tie line extension display control means, input tie line extension display control means,
Already-input tie-line contraction display control means, fraction input control means,
Fractional formula input control means, denominator formula change means, fractional number calculation means)
20 Numeric keys (numeric input means)
21 Operation Symbol Key (Operation Symbol Input Means)
24 cursor keys (input position changing means)
26 Fraction key (link input means)
K tie line

Claims (9)

A numerical value input means for receiving an input operation of each numerical value in a fractional number from the user;
Contour line input means for receiving an input operation of each spline in the fractional number from the user,
A fraction number display means for displaying a fraction number including each numerical value input by the numerical value input means and each tie line input by the tie line input means;
The fraction display means is
When displaying a tie line input by the tie line input means, an already-input tie-line expansion display control means for expanding and displaying each other tie line already input;
When an input operation is further performed by the tie line input means for the same tie line that has already been input, the tie line extension display control is performed to expand and display this tie line according to the number of input operations for the tie line. Means,
A fractional input display device characterized by comprising: The fraction input display device according to claim 1,
When an input operation is further performed on the same connected line by the connected line input means, the connected line is expanded and displayed, and another input having the same length as the expanded connected line is displayed. The already-input tie-line shrinkage display control means for shrinking and displaying the tie-line of
A fraction input display device comprising: In the fraction input display device according to claim 1 or 2,
An input position changing means for receiving an input position changing operation from a user;
When a tie line input operation is performed on the position of a numerator or denominator value in a fraction by the tie line input means, this fraction is made into a fractional number by inputting a tie line with that value as the denominator. A fraction input control means;
A fraction input display device comprising: In the fraction input display device according to claim 1 or 2,
An input position changing means for receiving an input position changing operation from a user;
An arithmetic symbol input means for receiving an arithmetic symbol input operation from a user;
Fractional number that is input by inputting a concatenated line with the mathematical expression part connected by the arithmetic symbol as the denominator when the superscript input operation is performed with respect to the position of the arithmetic symbol by the connecting line input means. A fractional expression input control means with a fractional expression,
A fraction input display device comprising: In the fraction input display device according to claim 4,
The fractional expression input control means includes:
When an input operation by the tie-line input means is further performed n times (n is a natural number of 1 or more) with respect to the same tie line that has been input to the position of the arithmetic symbol,
A denominator formula changing means for changing a formula portion linked by each computation symbol from the computation symbol to the first computation symbol by n pieces from this computation symbol to the denominator of the fractional expression in the inputted mathematical formula A fractional input display device characterized by comprising: In the fraction input display device according to claim 1,
The fraction display means is
In addition to displaying a predetermined tie line symbol as a tie line, and displaying the length of the tie line by the number of the tie line symbols, it has one line display means for displaying the input fraction in a one line display format. A fraction input display device. In the fraction input display device according to claim 1,
The fraction display means is
Displays a predetermined tie line symbol as a tie line, and displays the length of the tie line by the number of tie line length display symbols attached to the tie line symbol, thereby displaying the input fraction in one line display format A fraction input display device characterized by comprising a one-line display means for displaying in (1). In the fraction input display device according to claim 1,
A fraction input display device comprising: a fraction number calculation means for converting a fraction number into an equivalent value or a mathematical expression based on the length of each tie line and displaying the same on the fraction number display means. On the computer,
Numeric input function that receives input of each numeric value from the user in the fraction,
A superscript input function that receives an input operation of each superscript from the user,
Realizing a fraction number display function for displaying a fraction number including each numerical value input by the numerical value input function and each tie line input by the tie line input function;
The fraction display function is
When displaying a tie line input by the tie-line input function, an already-input tie-line extension display control function for extending and displaying each other tie-line already input;
When an input operation is further performed for the same tie line already input by the tie line input function, this tie line extension display control is performed to expand and display this tie line according to the number of input operations for the tie line. Function and
A fraction input display program characterized by comprising:

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