JP2000298423A - Calculation display device and recording medium storing calculation display processing program - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a calculation display device for determining and displaying a solution according to an arbitrary calculation formula, and to provide a solution while the user is thinking and to evaluate and display the solution. [Solving Means] Enter or select and display an arbitrary arithmetic expression, enter a solution by user's own calculation, and click "JUDG" button.
When the user operates 12e, the input solution input by the user and stored in the input solution memory in the RAM is compared with the correct answer stored in the operation solution memory by performing the arithmetic processing on the operation formula. Correct answer, 2. Incorrect 3. Simplified, correct answer, one of the two solutions is correct, The determination flags 1 to 5 are stored in the determination flag memory, and the display messages "1.TRUE, 2.FALSE, 3.TRUE, THERE IS" respectively correspond to the determination results. ANOTHER EXPR
ESSION, 4.Not Complete, ANOTHER ANSWER IS EXIST, 5.
"Cannot judge" is selectively read from the judgment message memory and displayed as the judgment window W.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arithmetic display device for determining and displaying a solution inputted according to an arbitrary arithmetic expression, and a recording medium storing an arithmetic display processing program.

[0002]

2. Description of the Related Art Conventionally, an arbitrary arithmetic expression including a variable, such as a linear equation, a quadratic equation or a simultaneous equation, is inputted,
Electronic computing devices that calculate and display the solution are widely used in practice.

In such a conventional electronic computer, when an arbitrary operation expression is input to instruct the execution of the operation,
The arithmetic processing is immediately executed, and only the solution is displayed.

[0004]

However, when the above-mentioned conventional electronic computing device is used as a computing device for learning and education, the operation formula input as a problem can be correctly answered by one-step processing corresponding to a key operation or the like. Is displayed and displayed, which does not contribute to the student's own thinking and seeking a solution at all, which is not suitable for learning and education.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and provides an arithmetic display device and a recording medium storing an arithmetic display processing program, which enable a user to answer while thinking and evaluate and display the solution. The purpose is to provide.

[0006]

That is, a first arithmetic and display device according to the present invention comprises a solution input means for inputting a solution for an arbitrary arithmetic expression, and a correct answer by operating the arbitrary arithmetic expression. Calculating means for deriving, a solution comparing means for comparing a correct answer of the arbitrary arithmetic expression derived by the calculating means with a solution inputted by the solution inputting means, and an arbitrary arithmetic expression by the solution comparing means And a solution determination means for determining the input solution based on a comparison between the correct solution and the input solution, and a determination result display means for displaying a determination result by the solution determination means.

In such a first arithmetic display device, when a solution is input for an arbitrary arithmetic expression, the correct answer of the arbitrary arithmetic expression calculated by the arithmetic means is compared with the input solution. Based on the comparison between the correct answer and the input solution, the content of the input solution is determined, and the result of the determination is displayed. For example, only the solution that the user himself solves and inputs is “correct” or “incorrect”. Instead, the state of the input solution based on the correct answer can be displayed in more detail.

The second arithmetic and display unit according to the present invention is the first arithmetic and display unit, further comprising substituting the solution input by the solution input means into the arbitrary arithmetic expression to perform the calculation. And a check display means for displaying the result of the check by the check means.

In the second operation display device, the solution input by the solution input means is substituted into the arbitrary operation expression and checked, and the result of the check is displayed. Can be recognized as actual.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a configuration of an electronic circuit of an electronic computer according to an embodiment of the arithmetic display device of the present invention.

The control unit (CPU) 11 includes a key input unit 12
Is stored in the ROM 16 in advance in accordance with key input data input from the user or touch position data from the tablet 14 provided on the display screen of the liquid crystal display unit 13 via the position detection circuit 15. Starting the system program, or reading and starting the computer control program stored in the external recording medium 20 by the recording medium reading unit 19,
The operation of each part of the circuit is controlled using the RAM 17 as a work memory.

The control unit (CPU) 11 is connected to the key input unit 12, the liquid crystal display unit 13, the tablet 14, the position detection circuit 15, the ROM 16, the RAM 17, and the recording medium reading unit 19. Reference numeral 13 is connected via a display drive circuit 18.

The key input unit 12 is provided with a data input key 12a comprising a character / symbol key group such as a numeric keypad, an alphabet key, an operator key, and a function key.
“E” is operated when determining various setting data, executing a function based on the setting data, or instructing to start a normal calculation process.
XE "key 12b," ESC "key 12 for returning to the initial input display state in various calculation modes, and selection of displayed data, feed operation and cursor K
And cursor keys 12d for up, down, left, and right, which are operated when performing the moving operation of.

The tablet 14 is provided on the display screen of the liquid crystal display unit 13 and generates a voltage signal corresponding to a position touched by a pen.
4, a coordinate corresponding to the display screen is detected by the position detection circuit 15 based on the voltage signal corresponding to the touch position, and the control unit (CP)
U) 11 determines the content of the operation.

The ROM 16 stores in advance system program data that governs the overall processing of the electronic circuit of the present electronic computer, and the input solution determination processing shown in FIG. 3 and the execution of the input solution determination processing. Control program data, which is subprogram data for controlling various operation modes, such as the check display process shown in FIG. 4 that is started, is also stored in advance.

FIG. 2 shows a RAM 1 in the electronic computer.
FIG. 7 is a diagram showing a configuration of a data memory in 7.

The RAM 17 has a display data memory 17
a, arithmetic expression memory 17b, input solution memory 17c, operation solution memory 17d, determination flag memory 17e, determination message memory 17f, left side value memory 17g, right side value memory 1
7h, a work data memory 17i, and the like.

Display data to be displayed on the liquid crystal display unit 13 is stored in the display data memory 17a as bitmap pattern data.

The arithmetic expression memory 17b stores an arbitrary arithmetic expression input in various calculation modes or an arbitrary arithmetic expression selected from a plurality of arithmetic expressions already input and stored. Is stored as the target operation expression.

In the input solution memory 17c, a solution solved by the user himself is set in the key input unit 1 with the operation formula input or selected and stored in the operation formula memory 17b as a calculation target.
The data is input and stored by the second data input key 12a.

The operation solution memory 17d stores the correct solution obtained in accordance with the operation processing program stored in the ROM 16 with the operation expression input or selected and stored in the operation expression memory 17b as an operation target. .

The determination flag memory 17e compares the solution stored by the user stored in the input solution memory 17c with the correct solution stored in the operation solution memory 17d, and determines whether the user solution is correct or incorrect with respect to the correct solution. The situation is determined, and the determination flag is stored. Correct answer,
2. Incorrect 3. Simplified, correct answer, one of the two solutions is correct, The determination is made based on the five classifications of “not possible to determine”, and the determination numbers are stored.

In the judgment message memory 17f, the contents of the judgment of the user solution 1. ~ 5. Display message corresponding to each of “1. TRUE, 2. FALSE, 3. T
RUE, THERE IS ANOTHER EXPR
ESSION, 4. NotComplete, ANOT
HER ANSWER IS EXIST, 5. Can
not judge "is stored.

When the target operation expression stored in the operation expression memory 17b is an equation, the left-side value memory 17g calculates the left-side operation calculated by substituting the user solution stored in the input solution memory 17c. The value (L value) is stored.

When the target operation expression stored in the operation expression memory 17b is an equation, the right-side value memory 17h stores an operation on the right-hand side calculated by substituting the user solution stored in the input solution memory 17c. The value (R value) is stored.

The work data memory 17i temporarily stores data input and output by the control unit (CPU) 11 in connection with the control processing of various operation modes.

Next, the operation of the electronic computer having the above configuration will be described.

FIG. 3 is a flowchart showing an input solution determination process by the electronic computer.

FIG. 4 is a flowchart showing a verification display process executed in accordance with the input solution determination process by the electronic computer.

FIG. 5 is a diagram showing an input solution determination and verification display state (part 1) accompanying the input solution determination processing and the verification display processing of the electronic computer.

FIG. 6 is a diagram showing an input solution determination and verification display state (part 2) accompanying the input solution determination processing and the verification display processing of the electronic computer.

When an arbitrary equation is input by operating the data input key 12a of the key input section 12, or when an arbitrary equation is selected from a plurality of arithmetic expressions previously input and stored, this input or selection is performed. The given equation is displayed on the liquid crystal display unit 13 (step A).
1).

Here, with the equation displayed on the liquid crystal display section 13 as a solution target, a solution of the equation is found by the user himself, and the input solution found by the user is inputted and displayed by the key input section 12. When the "JUDG" button 12e is touched, the equations and the input solutions are stored in the arithmetic expression memory 17b and the input solution memory 17c in the RAM 17, respectively (step A2 →
A3).

Then, the correct answer of the equation stored in the arithmetic expression memory 17b is determined according to an arithmetic processing program stored in the ROM 16 in advance, and the correct answer and the input solution stored in the input solution memory 17c are determined. The comparison is performed to determine whether the input solution is correct or incorrect and the correctness of the input solution (step A4).

Here, when it is determined that the number of input solutions stored in the input solution memory 17c matches the number of correct solutions, and when it is determined that all of the solutions of the number match each other, When the determination of "correct answer" is made, the flag "1" is set in the determination flag memory 17e in the RAM 17, and the corresponding display message "TRUE" is read from the determination message memory 17f in the RAM 17. And is displayed as a determination window W on the display screen of the equation and the input solution (steps A5 → A6 → A7) [FIG. 5 (A) and FIG.
(C)).

In this way, when the "correct" judgment display "TRUE" of the input solution input by the user with respect to an arbitrary equation is made, the process proceeds to a check display process (see FIG. 4) for clearly showing the judgment state. The process is shifted (step AB).

On the other hand, even if it is determined in step A5 that the number of user-entered solutions stored in the input solution memory 17c matches the number of correct solutions, any of the solutions Is determined not to match, the input solution is further simplified to determine whether it matches the correct answer (steps A5 → A6 →
A8 → A9).

Here, if it is determined that the input solution does not match the correct answer even if the input solution is simplified, or if the input solution cannot be further simplified, another variable unrelated to this equation is used. It is determined whether or not the answer is input. If it is determined that the answer does not exist, the determination of “incorrect answer” is made and the flag “2” is set in the determination flag memory 17 e in the RAM 17. Then, the corresponding display message "FALSE" is read out from the determination message memory 17f in the RAM 17, and displayed as a determination window W on the display screen of the equation and the input solution (steps A9 → A10 → A11). [See FIG. 5 (B)].

In this way, when the "incorrect" judgment display "FALSE" of the input solution to an arbitrary equation is made, a verification display process for clearly showing the judgment state (see FIG. 4).
Is transferred to (Step AB).

On the other hand, even if it is determined in step A5 that the number of input solutions stored in the input solution memory 17c matches the number of correct answers, it is determined that all of the numbers match the correct answers. For example, when it is determined that only one of the two input solutions matches the correct answer, the determination of “one of the two solutions is correct” is made, and the determination flag memory 17 in the RAM 17 is determined.
e, a flag “4” is set, and a corresponding display message “Not Complete, ANO” is displayed.
THE ANSHER IS EXIST "is RAM
17 is read from the determination message memory 17f in
A judgment window W is displayed on the display screen of the equation and the input solution.
(Steps A5 → A6 → A8 → A1)
2) [See FIGS. 6A and 6B].

Thus, the judgment display “Not C” of the input solution to an arbitrary equation “one of the two solutions is correct”
complete, ANOTHER ANSWER IS
When “EXIST” is performed, the process proceeds to a verification display process (see FIG. 4) for clearly indicating the determination status (step AB).

On the other hand, in step A5, when it is determined that the number of input solutions stored in the input solution memory 17c matches the number of correct solutions, it is determined that none of the solutions have the same value. Even if it is determined, if the input solution is further simplified and the input solution is determined to match the correct answer (for example, if the correct answer is “X = 4, X = −4, 2 + 2, X = −2-2, etc.), the flag “3” is set in the determination flag memory 17 e in the RAM 17 by making a determination of “correct if simplified”. Display message corresponding to "TRUE, THERE IS ANOTHER
"EXPRESSION" is read from the determination message memory 17f in the RAM 17, and displayed as a determination window W on the display screen of the equation and the input solution (steps A5 → A6 → A8 → A9 → A13).

In this way, the judgment display "TRUE, THER" of "simplification is correct" of the input solution to an arbitrary equation
When "EIS ANOTHER EXPRESSION" is performed, the process proceeds to a verification display process (see FIG. 4) for clearly indicating the determination status (step AB).

On the other hand, in step A5, even if it is determined that the number of input solutions stored in the input solution memory 17c matches the number of correct answers, none of them match the correct answer. , It is determined that the solution does not match the correct answer even if it is simplified, or that this input solution cannot be further simplified, and that there is an input solution for another variable that is not related to any equation (For example, when the correct answer is “X = 4, X = −4, and when the input solution is Y = 4, 2X = X + 4”), a determination of “impossible to determine” is made. RAM 17
The flag "5" is set in the determination flag memory 17e in the "?", And the corresponding display message "Cann" is displayed.
"ot judge" is read from the determination message memory 17f in the RAM 17, and is displayed as a determination window W on the display screen of the equation and the input solution (steps A5 → A6 → A8 → A9 → A10 → A14).

As described above, the judgment display "Cannot judg" of "impossible to judge" of the input solution to an arbitrary equation.
When "e" is performed, the process proceeds to a verification display process (see FIG. 4) for clearly indicating the determination status (step A).
B).

That is, as shown in FIG. 5A, for example, the equation “4X ² = 1” input or selected and displayed.
The input solution by the user for “6” is “X = 2, X = −
6 or as shown in FIG. 6C, the simultaneous equation “3x
When the input solution is given as “X = 1, Y = 2” by the user for “+ 2Y = 7, X + Y = 3”, in each case, the number of solutions matches (step A5), Since it is determined that they match (step A6), a "correct answer" determination is made, and the corresponding display message "TRUE" is displayed as the determination window W (step A7).

For example, as shown in FIG. 5B, the input solution is given as “X = 3, X = −3” by the user with respect to the input or selected equation “4X ² = 16”. In this case, it is determined that the number of solutions matches (step A5), but none of the solutions match the correct answer (step A6 → A8), and furthermore, the solution cannot be simplified (step A9). Since it is determined that there is no other variable that has not been input (step A10), an "incorrect" determination is made and the corresponding display message "FALSE" is displayed.
Is displayed as the determination window W (step A11).

For example, as shown in FIG. 6A, an input solution is given by the user as “X = 1, X = −2” to the input or selected equation “4X ² = 16”. 6B, or as shown in FIG. 6B, when the input solution is given by the user as “X = 2, Y = −1” for the same equation “4X ² = 16”, In either case, the number of solutions matches (step A5)
However, it is not determined that all solutions match (step A6), and only one solution matches the correct answer (step A6).
8), "One of the two solutions is correct."
Is determined, and the corresponding display message "Not
Complete, ANOTHER ANSWER I
S EXIST ”is displayed as the determination window W (step A12).

In this manner, when the input solution determination processing in FIG. 3 shows the input solution determination display for the input or selected equation, no matter which solution determination display is made, the verification display in FIG. Is moved to processing,
First, it is determined whether or not the equation input or selected and stored in the arithmetic expression memory 17b in the RAM 17 is a simultaneous equation (step B1).

Here, if it is determined that the input or selected and displayed equation is not a simultaneous equation but an ordinary equation, if the input solution stored in the input solution memory 17c is substituted, Is calculated, and it is determined whether the number of digits of the calculated left side value (L) is within the displayable range (steps B1 → B2, B).
3).

When it is determined that the number of digits of the left side value (L) of the calculated equation is within the displayable range, the left side value (L) is stored in the left side value memory 17 g in the RAM 17. It is stored and set as display data (step B3 → B4).

On the other hand, if it is determined that the number of digits of the left side value (L) of the equation calculated above does not fall within the displayable range, the number of digits is stored in the left side value memory 17g in the RAM 17. A message "LONG VALUE DATA" indicating that display is impossible due to over is set as display data (step B3 → B5).

Subsequently, similarly to the calculation of the left side value (L), the right side value (R) of the equation in which the input solution stored in the input solution memory 17c is substituted is calculated and calculated. It is determined whether the number of digits of the right side value (R) is within the displayable range (step B6 → B7).

If it is determined that the number of digits of the right-hand side value (R) of the calculated equation is within the displayable range, the right-hand side value (R) is stored in the right-hand side memory 17h in the RAM 17. And set as display data (step B7 → B8).

On the other hand, if it is determined that the number of digits of the right-hand side value (R) of the calculated equation does not fall within the displayable range, the right-hand side value memory 17h in the RAM 17 stores the number of digits in the right-hand side memory (17h). A message "LONG VALUE DATA" indicating that display is impossible due to over is set as display data (steps B7 to B9).

Thereafter, when there are a plurality of input solutions stored in the input solution memory 17c, another solution which does not calculate (verify) the left side value (L) and the right side value (R). Exists, the display set processing by the substitution calculation of the left side value (L) and the right side value (R) is repeated for each of the input solutions (step B).
10 → B2 to B9).

Then, when it is determined that the display set processing by the calculation of the left side value (L) and the right side value (R) has been performed for all the input solutions stored in the input solution memory 17c, The display data of the left-side value (L) and the right-side value (R) stored in the left-side value memory 17g and the right-side value memory 17h are read out, and are displayed on the display screen of the liquid crystal display unit 13 on which the determination window W is displayed. (Step B10 → B1)
1) [See FIGS. 5 and 6].

Here, the case where the input or selected and displayed equation is not a simultaneous equation but an ordinary equation and there are a plurality of input solutions input by the user [FIGS. 5 (A) and 5 (B). 6 (A) and 6 (B)], the left side value (L) and the right side value (R) calculated by substituting the input solution selectively designated by the cursor K on the display screen are the left side. Value memory 17g and right-side value memory 17h
Read out and displayed.

That is, as shown in FIG. 5A, for example, “X = 2, X = −” with respect to the equation “4X ² = 16”.
2 ”is an input solution, of which the input solution“ X = 2 ”at the top
Is designated by the cursor K, the left side value (L = 16) and the right side value (R = 16) when the input solution "X = 2" in the upper row is substituted are selectively displayed, and the " The correct answer judgment "TRUE" is displayed.

[0061] Also, for example, as shown in FIG. 5 (B), 2 single solution for equation "4X ² = 16""X = 3, X =
-3 "is input by the user.
When “3” is designated by the cursor K, the left side value (L = 36) and the right side value (R = 16) when the input solution “X = 3” is substituted are selectively displayed, and the Correct answer "
A judgment display of the judgment “FALSE” is made.

[0062] For example, as shown in FIG. 6 (A), 2 single solution for equation "4X ² = 16", "X = 1, X =
−2 ”is the input solution, and the input solution“ X =
When “1” is designated by the cursor K, the left side value (L = 4) and the right side value (R
= 16) is selectively displayed, and "1 of the two solutions
One is the correct answer "Not Complete, ANO
A verification display of "THE ANSWERIS EXIST" is made.

Further, for example, as shown in FIG.
For the equation “4X ² = 16”, two solutions “X = 2, X
= −1 ”is an input solution, and when the lower row“ X = −1 ”is designated by the cursor K, the left side value (L = 4) based on the lower row input solution“ X = −1 ”and The right-hand side value (R = 16) is selectively displayed, and the determination of “One of the two solutions is correct” is “Not Complete, A
A NOTIFY ANSWER IS EXIST is displayed.

On the other hand, in step B1 in the above-mentioned verification display processing, the input or selection display
If it is determined that the equation stored in the arithmetic expression memory 17b is a simultaneous equation, the input solution stored in the input solution memory 17c is substituted for the first equation, and the left side The value (L) and the right side value (R) are calculated and stored in the left side value memory 17g and the right side value memory 17h (step B1 → B12).

Here, it is determined whether or not the input solution has been determined to be "correct" in step A6 in the input solution determination processing. If the "correct answer" has been determined, the left-hand value It is determined whether or not (L) and the right-hand side value (R) match, that is, it is determined that the input solution is a “correct answer”, and the input solution is substituted into the second equation, and the left-hand side thereof is substituted. The value (L) and the right-side value (R) are calculated and stored in the left-side value memory 17g and the right-side value memory 17h (step B13 → B14 → B15).

If it is determined in step A6 in the input solution determination process that the input solution has not been determined to be "correct", the "correct answer" confirmation determination of the input solution in step B14 is not made. The input solution is substituted for the third equation, the left side value (L) and the right side value (R) are calculated, and stored in the left side value memory 17g and the right side value memory 17h (step B13 → B).
15).

Then, whether the number of digits of each of the left side value (L) and the right side value (R) of the simultaneous equations stored in the left side value memory 17g and the right side value memory 17h in the RAM 17 is within the displayable range or not. If it is determined that the value is within the displayable range, the left-side value (L) and the right-side value (R) are set as display data in the left-side value memory 17g and the right-side value memory 17h in the RAM 17,
The liquid crystal display unit 13 displaying the determination window W
(Step B16 → B)
17, B11) [see FIG. 6 (C)].

On the other hand, if it is determined that the number of digits of the left side value (L) and the right side value (R) of the calculated simultaneous equations do not fall within the displayable range, the left side value memory 17g in the RAM 17 And a message "LONG VALUE DATA" indicating that display is impossible due to the number of digits in the right side value memory 17h is set as display data, and the liquid crystal display unit 13 on which the determination window W is displayed in the same manner as described above. Are further displayed on the display screen (step B16 → B18, B11).

Here, in the case of the check calculation display for the simultaneous equations (see FIG. 6C), either the upper row or the lower row selectively designated by the cursor K on the display screen. The left side value (L) and the right side value (R) calculated by substituting the input solution for the equation are read out from the left side value memory 17g and the right side value memory 17h and displayed.

That is, for example, as shown in FIG. 6C, the input solution “X = 1, Y = 2” for the simultaneous equations “3X + 2Y = 7, X + Y = 3” is input, and the upper equation “3X + 2Y = 7” Is designated by the cursor K, the left-hand side value (L = 7) based on the input solution “X = 1, Y = 2” for the upper equation “3X + 2Y = 7”
And the right-hand side value (R = 7) are selectively displayed, and the correct display of the “true” determination “TRUE” is made.

Therefore, according to the function of determining an input solution for an arbitrary arithmetic expression in the electronic computer having the above-described configuration, the user inputs or selects and displays an arbitrary arithmetic expression, inputs a solution obtained by the user's own calculation, and presses the “JUDG” button. When the user operates 12e, the input solution input by the user and stored in the input solution memory 17c in the RAM 17 is compared with the correct answer stored in the operation solution memory 17d by performing arithmetic processing on the arithmetic expression. Correct answer, 2. Incorrect 3. The answer is simple,
4. One of the two solutions is correct; Unavailable, 5
And the determination flags 1 to 5 are stored in the RAM 1
7 are stored in the determination flag memory 17e, and the display messages "1. TRUE,
2. FALSE, 3. TRUE, THERE IS A
NOTHER EXPRESSION, 4. Not C
complete, ANOTHERANSWER IS
EXIST, 5. "Cannot judge" is selectively read from the determination message memory 17f and displayed as the determination window W. When this electronic computer is used as a computer for learning and education, the student himself solves and inputs. Not only whether the answer is "correct" or "incorrect", but also if the answer is correct to some extent, or if the answer is correct if the input format of the solution is changed, etc. An electronic computing device suitable for learning education can be realized.

Further, according to the judgment and verification display function of the input solution to the arbitrary operation formula in the electronic computing device having the above-mentioned configuration, it is possible to compare the input formula with the correct answer of the user input solution to the operation formula. Correct answer, 2. Incorrect 3. The answer is simple,
4. One of the two solutions is correct; Not only is it possible to judge whether or not the judgment is possible and the message is displayed, but also the user input solution is substituted for the equation given as the arbitrary operation expression, and its left side value (L) and right side value ( Since R) is calculated and displayed as a result of the calculation, the user can be presented with the actual calculated value according to the result of the determination of the input solution, thereby deepening the understanding of the answer made by the user himself.

The methods described in the above embodiment, that is, the input solution determination processing shown in the flow chart of FIG. 3 and the verification display processing shown in the flow chart of FIG. 4 are implemented as programs that can be executed by a computer. , Memory card (ROM card, RAM card, etc.), magnetic disk (floppy disk, hard disk, etc.), optical disk (CD-ROM, DVD
Etc.), and can be stored in an external recording medium 20 such as a semiconductor memory and distributed. Then, the computer reads the program stored in the external recording medium 20 by the recording medium reading unit 19 such as a magnetic disk device, and the operation is controlled by the read program, whereby the user input described in the above embodiment is performed. The function of displaying the determination message for the solution and the function of displaying the calculation of the solution can be realized, and the same calculation display processing by the above-described method can be executed.

[0074]

As described above, according to the first arithmetic display device of the present invention, when a solution is input for an arbitrary arithmetic expression, the correct answer of the arbitrary arithmetic expression calculated by the arithmetic means is obtained. The input solution is compared, the content of the input solution is determined based on the comparison between the correct solution and the input solution, and the result of the determination is displayed. Not just “correct” or “incorrect”
The state of the input solution based on the correct answer can be displayed in more detail.

Further, according to the second calculation display device of the present invention, the solution inputted by the solution input means is substituted into the above-mentioned arbitrary calculation formula, the result is checked, and the check result is displayed. It becomes possible to recognize the judgment contents for the input solution as actual.

Therefore, according to the arithmetic and display device according to the present invention, it is possible for a user to answer while thinking and to evaluate and display the solution.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an electronic circuit of an electronic computing device according to an embodiment of an arithmetic display device of the present invention.

FIG. 2 is a diagram showing a configuration of a data memory in a RAM in the electronic computing device.

FIG. 3 is a flowchart showing an input solution determination process by the electronic computer.

FIG. 4 is a flowchart showing a verification display process executed along with the input solution determination process by the electronic computer.

FIG. 5 is a diagram showing an input solution determination and verification display state (part 1) accompanying the input solution determination processing and the verification display processing of the electronic computing device.

FIG. 6 is a diagram showing an input solution determination and verification display state (part 2) accompanying the input solution determination processing and the verification display processing of the electronic computing device.

[Explanation of symbols]

 11: Control unit (CPU), 12: Key input unit, 12a: Data input key, 12b: "EXE" key, 12c: "ESC" key, 12d: Cursor key, 12e: "JUDG" button, 13: Liquid crystal display 14, tablet, 15, position detection circuit, 16, ROM, 17, RAM, 17 a, display data memory, 17 b, arithmetic expression memory, 17 c, input solution memory, 17 d, operation solution memory, 17 e, determination flag memory, 17f: determination message memory; 17g: left value (L) memory; 17h: right value (R) memory; 17i: work data memory; 18: display drive circuit; W: determination window; K: cursor.

Claims (6)

[Claims] 1. A solution input unit for inputting a solution for an arbitrary operation expression, an operation unit for operating the arbitrary operation expression to derive a correct answer, and the arbitrary operation expression derived by the operation unit And a solution comparing means for comparing the correct answer to the solution input by the solution input means. Based on a comparison between the correct answer for the arbitrary arithmetic expression and the input solution by the solution comparing means, the input solution An arithmetic display device comprising: a solution determining means for determining; and a determination result displaying means for displaying a determination result by the solution determining means. 2. The apparatus according to claim 1, further comprising: a determination result storage unit configured to store a plurality of types of determination results obtained by the solution determination unit in advance, wherein the determination result display unit performs a determination based on the determination result obtained by the solution determination unit. 2. The arithmetic and display device according to claim 1, wherein an appropriate judgment result is read out and displayed. 3. A verification means for substituting the solution input by the solution input means into the arbitrary operation formula for verification, and a verification display means for displaying a verification result by the verification means. The arithmetic display device according to claim 1 or 2, wherein: 4. The arbitrary arithmetic expression is an equation in which a solution is an arbitrary variable, and the checking means substitutes the solution input by the solution input means into the equation and calculates the left side value and the right side value thereof. The calculation display device according to claim 3, wherein the calculation display device performs a calculation. 5. A recording medium on which an arithmetic display processing program for controlling a computer of an arithmetic display device is recorded, said computer comprising: a solution detecting means for detecting an input solution for an arbitrary arithmetic expression; Calculating means for calculating the arbitrary arithmetic expression to derive a correct answer; solution comparing means for comparing the correct answer of the arbitrary arithmetic expression derived by the arithmetic means with the solution detected by the solution detecting means; Solution determining means for determining an input solution based on a comparison between a correct answer for the arbitrary arithmetic expression by the comparing means and an input solution detected by the solution detecting means, displaying a determination result by the solution determining means A recording medium on which an arithmetic display processing program for functioning as a determination result display means is recorded. 6. The computer, further comprising: a verification means for substituting the input solution detected by the solution detection means into the arbitrary arithmetic expression for verification; a verification display means for displaying a verification result by the verification means;
A recording medium on which the arithmetic display processing program according to claim 5 for functioning as a computer is recorded.