JP2013015961A - Calculation device and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a calculation device capable of rapidly and simply performing an expression deformation using a plurality of displayed numerical expressions by the intuitive operation of a pointing device.SOLUTION: When, among a plurality of numerical expressions displayed on an expression input screen G(16), an arbitrary mathematical expression "2x+5" is selected by pen touch (P) (selected numerical expression) and dragged to and dropped on another arbitrary numerical expression "x+3x+1"(object numerical expression), then a binary operator selection window RS is displayed in the vicinity thereof. When the selection window RS of a binary operator is touched by the pen (P) and an arbitrary operator "+" is selected, a deformed numerical expression "(2x+5)+(x+3x+1)", which consists of the selected numerical expression and the object numerical expression combined with the operator selected from the binary operator selection window RS, is generated and displayed and also the operation result "12" is obtained and displayed.

Description

  The present invention relates to a calculation apparatus for inputting and calculating an arbitrary mathematical expression and a control program therefor.

  There is a scientific calculator with a touch-screen display screen.

  In the operation of the mathematical expression by the scientific calculator, a new expression may be created in which a mathematical expression input and displayed is connected to another mathematical expression by a binary operator (four arithmetic operators). In general, either re-enter the new formula from the beginning, or select and copy a formula, add a binary operator to another formula, and place the copied formula in the appropriate place. The operation of pasting is necessary.

  However, these operations are troublesome and troublesome, and are not intuitive operations utilizing a pointing device.

  In a scientific calculator equipped with a conventional touch panel display screen, the function expression displayed in the expression display area is dragged to the graph display area to execute arithmetic processing of the function expression and graph drawing processing. There are some (for example, refer to Patent Document 1).

  In addition, there is one that simplifies a mathematical expression including a root sign by selecting a numerical value within a root sign from a displayed mathematical formula and dragging the selected numerical value outside the root sign to perform prime factorization (for example, , See Patent Document 2).

  In addition, by touching two points on the displayed quadratic expression and dragging it in the direction that separates the two points, it can be converted into an expression with parentheses that are factored into prime factors, or vice versa. There are some which are converted into a quadratic expression with parentheses removed by dragging (see, for example, Patent Document 3).

JP 2009-294926 A JP 2008-140148 A JP 2011-022913 A

  In the scientific calculator equipped with the conventional touch panel type display screen, the displayed mathematical formula is dragged and moved between display areas with different processing, or the numerical value in the root sign is moved to the outside, In addition, the mathematical expression can be converted according to the form of the touch operation on the displayed mathematical expression.

  However, it has been impossible to transform a plurality of displayed mathematical expressions by designating an arbitrary binary operator by an intuitive operation.

  The present invention has been made in view of the above problems, and a calculation apparatus and its control capable of quickly and easily performing expression transformation using a plurality of displayed expressions by an intuitive operation using a pointing device. The purpose is to provide a program.

  The calculation apparatus according to the present invention includes a formula display unit that displays a plurality of formulas on a display unit, a formula drag unit that selects and drags a formula displayed on the display unit in response to a user operation, and the formula drag An operator menu display means for displaying a selection menu of a binary operator on the display section when the mathematical expression selected by the means is dragged to another mathematical expression displayed on the display section, and the operator menu display When an arbitrary operator is selected in accordance with a user operation from the binary operator selection menu displayed by the means, the dragged mathematical expression and another mathematical expression are combined by the selected operator. And a mathematical expression combining means for displaying on the display section.

  A program according to the present invention is a program for controlling a computer including a display unit, the computer displaying a plurality of mathematical expressions on the display unit, and the display unit according to a user operation. Formula dragging means for selecting and dragging the formula displayed on the menu, and when the formula selected by the formula dragging means is dragged to another formula displayed on the display section, a binary operator selection menu is displayed. The operator menu display means to be displayed on the display unit, and when an arbitrary operator is selected according to a user operation from the binary operator selection menu displayed by the operator menu display means, the dragged A mathematical expression is combined with the selected operator and displayed on the display unit by combining the mathematical expression with another mathematical expression, To have.

  ADVANTAGE OF THE INVENTION According to this invention, the calculation apparatus which can perform the formula deformation | transformation using the displayed several numerical formula quickly and easily by intuitive operation with a pointing device and its control program can be provided.

The front view which shows the external appearance structure of the graph scientific calculator 10 which concerns on embodiment of the calculation apparatus of this invention. FIG. 2 is a block diagram showing a configuration of an electronic circuit of the graph scientific calculator 10. The flowchart which shows the pen operation calculation process (1) of 1st Embodiment of the said graph scientific calculator 10. FIG. The figure which shows the display operation of the formula input screen G accompanying the pen operation calculation process (1) of 1st Embodiment of the said graph scientific calculator 10. FIG. The flowchart which shows the pen operation calculation process (2) of 2nd Embodiment of the said graph scientific calculator 10. FIG. The figure which shows the display operation of the formula input screen G accompanying the pen operation calculation process (2) of 2nd Embodiment of the said graph scientific calculator 10. FIG. The figure which shows the numerical formula arrangement | positioning determination table 22b referred with the pen operation calculation process (2) of 2nd Embodiment of the said graph scientific calculator 10. FIG. The flowchart which shows the pen operation calculation process (3) of 3rd Embodiment of the said graph scientific calculator 10. FIG. The figure which shows the display operation of the formula input screen G accompanying the pen operation calculation process (3) of 3rd Embodiment of the said graph scientific calculator 10. FIG. The figure which shows the operator determination table 22c referred with the pen operation calculation process (3) of 3rd Embodiment of the said graph scientific calculator 10. FIG. The flowchart which shows the pen operation calculation process (4) of 4th Embodiment of the said graph scientific calculator 10. FIG. The figure which shows the display operation of the formula input screen G accompanying the pen operation calculation process (4) of 4th Embodiment of the said graph scientific calculator 10. FIG.

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

  FIG. 1 is a front view showing an external configuration of a graph scientific calculator 10 according to an embodiment of a computing device of the present invention.

  The graph scientific calculator 10 has a small size that allows the user to hold it with one hand and operate it with one hand because of its portability. A key input unit 11 and a liquid crystal dot matrix type display unit are provided on the front of the main body of the calculator 10. 16 is provided.

  The display unit 16 is provided with a transparent tablet touch panel 17 on the display screen.

  The key input unit 11 is used to set numbers, characters, arithmetic symbol keys 12 for inputting numbers / characters / various arithmetic symbols and instructing execution of calculations, various function functions, and memory functions. Calculation function setting key group 13 for setting, various operation modes, mode setting key group 14 for displaying a menu screen, moving operation of the cursor displayed on the display unit 16 and data item Cursor keys 15 for performing selection operations and the like, function keys [F1] to [F4] for selectively specifying various functions displayed on the menu along the lower end of the display unit 16, and the like are provided.

  The numeric / character / arithmetic symbol key group 12 includes [0] to [9] (numeric) keys, [+] [−] [×] [÷] (arithmetic symbols) keys, and [DEL] (delete) keys. , [EXE] (execute) key, [AC] (clear) key, and the like are arranged.

  As the calculation function setting key group 13, a [log] (logarithmic) key, a “√” (square root) key, a trigonometric [sin] key, a [cos] key, a [tan] key, and the like are arranged.

  The mode setting key group 14 includes a [Menu] key, an [Insert] key, a [Graph] key, a [Trac] key, an [EXIT] key, and the like. Arranged.

  The graph scientific calculator 10 includes a plurality of mathematical formulas displayed on the formula input screen G of the touch panel display unit 16 (17). The mathematical formula (h1) is pen-touched (P), dragged (x), and another mathematical formula ( h2) A function (see FIG. 4) is provided in which each mathematical expression is combined and deformed by an arbitrary binary operator (four arithmetic operators) by dropping on h2.

  FIG. 2 is a block diagram showing the configuration of the electronic circuit of the graph scientific calculator 10.

  The graph scientific calculator 10 includes a control unit (CPU) 21 that is a computer.

  The control unit (CPU) 21 is read into the storage device 22 via the storage medium reading unit 24 from a system program or a computer control program 22a stored in the storage device 22 or an external storage medium 23 such as a memory card. In accordance with the computer control program 22a or the computer control program 22a downloaded from the Web server (program server) 30 on the communication network N via the communication control unit 25 and read into the storage device 22, each part of the circuit uses the RAM 26 as a working memory. To control the operation. The system program and the computer control program 22a stored in the storage device 22 are activated in response to a key input signal from the key input unit 11 and a touch input signal from the touch panel display unit 16 (17).

  The computer control program 22a stored in the storage device 22 includes a program for controlling the four arithmetic operations, function operation processing, graph drawing processing, etc. of various mathematical formulas according to key input or touch input, as well as an expression input screen G. Drag and drop an arbitrary mathematical expression among a plurality of mathematical expressions that are input and displayed by pen touch (P) onto another mathematical expression, and each mathematical expression with an arbitrary binary operator (four arithmetic operators). A program for controlling pen operation calculation processing to be combined and deformed is included.

  In addition to the storage device 22, the storage medium reading unit 24, the communication control unit 25, the RAM 26, and the key input unit 11, the control unit (CPU) 21 includes a liquid crystal display unit (LCD) 16 and a touch panel 17. Connected.

  The RAM 26 includes a display data memory 26a, a selected formula data memory 26b, a target formula data memory 26c, a drag trajectory coordinate memory 26d, a modified formula data memory 26e, a formula calculation data memory 26f, and a control unit 21 in accordance with various calculation processes. A data memory is secured in which various data input / output are stored as required.

  The display data memory 26a stores bitmap pattern data generated with a display screen size to be displayed on the display unit 16.

  In the selected formula data memory 26b, on the formula input screen G displayed on the display unit 16, a formula that is first pen-touched (P) and highlighted (h1) among a plurality of formulas is stored as a selected formula.

  In the target mathematical formula data memory 26c, another formula that has been highlighted (h2) by dragging (x) and overlapping the selected formula that has been highlighted (h1) is stored as the target mathematical formula.

  The drag trajectory coordinate memory 26d stores a coordinate sequence corresponding to the trajectory of the touch position when the pen touch (P) is dragged on the screen of the touch panel display unit 16 (17).

  The modified mathematical formula data memory 26e stores mathematical formulas obtained by combining and transforming the mathematical formulas according to the superposition of the selected mathematical formula (h1) and the target mathematical formula (h2).

  The mathematical formula calculation data memory 26f stores the progress and results associated with the calculation processing of various mathematical formulas that are input and displayed on the formula input screen G.

  In the graph scientific calculator 10 configured as described above, the CPU 21 controls the operation of each part of the circuit in accordance with the instructions described in the computer control program 22a, and the software and hardware operate in cooperation with each other. The function described in the explanation of the operation is realized.

  Next, the operation of the graph scientific calculator 10 having the above configuration will be described.

(First embodiment)
FIG. 3 is a flowchart showing pen operation calculation processing (1) of the graph scientific calculator 10 according to the first embodiment.

  FIG. 4 is a diagram showing a display operation of the expression input screen G accompanying the pen operation calculation process (1) of the first embodiment of the graph scientific calculator 10.

For example, it is assumed that the graph scientific calculator 10 is in a display state in which an expression including x when “1” is substituted for x is calculated by a user operation. In this case, as shown in FIG. 4A, the expression input screen G of the touch panel display unit 16 (17) includes “1 → x”, “2x + 5”, “x ² + 3x + 1”, and calculation results “1”, “7”. "5" is displayed.

Here, when one of the formulas “2x + 5” is pen-touched (P) to generate a new formula obtained by combining the formula “2x + 5” and the formula “x ² + 3x + 1”, the formula “ "2x + 5" is stored in the selected mathematical formula data memory 26b and displayed in reverse (h1) (step S1 (Yes)).

Then, as shown in FIG. 4B, the selection formula “2x + 5” touched by the pen (P) is dragged (x) on the formula input screen G, and the pen is put on the formula “x ² + 3x + 1” to be combined. When it is up (dropped) (steps S2 to S4 (Yes)), the mathematical formula “x ² + 3x + 1” is stored in the target mathematical formula data memory 26c and is highlighted (h2). As shown in C), an operator selection window RS for selecting a binary operator (four arithmetic operators) is popped up and displayed (step S5).

In this operator selection window RS, when an arbitrary operator “+” is selected by pen touch (P) (step S6 (Yes)), the selected expression “2x + 5” and the target are selected by the selected operator “+”. formula formula deformed by combining the ^"x 2 + 3x + 1"^{"(2x + 5) + (x} 2 + 3x + 1) " is generated, while being stored in the modified formula data memory 26e, as shown in FIG. 4 (D), It is displayed on the expression input screen G (16) (step S7).

Then, it is determined whether or not it is possible to calculate the mathematical expression “(2x + 5) + (x ² + 3x + 1)” stored in the modified mathematical expression data memory 26e (step S8), and if it is determined that the calculation is possible (step S8 (Yes)). ), An arithmetic process of substituting “1” into x of the modified mathematical formula “(2x + 5) + (x ² + 3x + 1)”, and the computation result “12” is read from the mathematical formula computation data memory 26f. Both are displayed on the expression input screen G (16) (step S9).

  If it is determined that the modified mathematical formula stored in the modified mathematical formula data memory 26e and displayed on the formula input screen G (16) is not operable (step S8 (No)), an error indicating that computation is impossible. A message is displayed (step S10).

  Also, as shown in FIG. 4B, when it is determined that the selection formula (h1) dragged by the pen touch (P) is pen-up (dropped) (steps S1 to S3 (Yes)). ), When it is determined that it does not overlap with another mathematical expression (step S4 (No)), the selected mathematical expression is displayed at the pen-up position (step S11).

  Therefore, according to the pen operation calculation function of the first embodiment of the graph scientific calculator 10 having the above-described configuration, an arbitrary mathematical expression is pen-touched (P) among a plurality of mathematical expressions displayed on the mathematical expression input screen G (16). When selected (selected formula) and dragged onto another arbitrary formula (target formula), a binary operator selection window RS is displayed in the vicinity thereof. When an arbitrary operator is selected by pen-touching (P) the operator selection window RS, the selected mathematical expression and the target mathematical expression are combined by the operator selected from the operator selection window RS. Is generated and displayed, and the calculation result is also obtained and displayed.

  For this reason, it is quick and easy (formula selection-> overlay-> computation) that transforms the formula that combines the displayed formulas with arbitrary four arithmetic operators by superimposing the selected formula with the pointing device on the target formula. Can be done in three steps of child selection).

(Second Embodiment)
FIG. 5 is a flowchart showing the pen operation calculation process (2) of the graph scientific calculator 10 according to the second embodiment.

  FIG. 6 is a diagram illustrating a display operation of the formula input screen G accompanying the pen operation calculation process (2) of the second embodiment of the graph scientific calculator 10.

  FIG. 7 is a diagram showing a mathematical expression arrangement determination table 22b that is referred to in the pen operation calculation process (2) of the second embodiment of the graph scientific calculator 10.

  In the pen operation calculation process (2) (see FIG. 5) of the second embodiment, the processes related to steps A1, A2, A4 to A7, A9 to A12, and A13 are the same as the pen operation calculation process of the first embodiment. (1) This is the same as the processing related to steps S1, S2, S3 to S6, S7 to S10, and S11 in (see FIG. 3), and detailed description thereof is omitted.

In the pen operation calculation process (2) of the second embodiment, as shown in FIG. 6, the selection formula B “2x + 5” displayed on the formula input screen G (16) is pen-touched (P) and displayed in reverse (h1 ), When dragging and dropping to the position of the target mathematical expression A “x ² + 3x + 1” (steps A1 to A5), a coordinate sequence corresponding to the locus of the touch position detected by the touch panel 17 during the dragging is a drag locus. It is recorded in the coordinate memory 26d (step A3).

Then, when the selection formula B “2x + 5” is superimposed on the target formula A “x ² + 3x + 1”, an operator is selected by pen-touching (P) in the operator selection window RS displayed in the vicinity thereof. Then (steps A4 (Yes) to A7 (Yes)), the object of the selection formula B “2x + 5” determined in accordance with the selected operator and the coordinate sequence recorded in the drag trajectory coordinate memory 26d. Based on the drag direction with respect to the mathematical formula A “x ² + 3x + 1”, the selected mathematical formula B “2x + 5” is set as the number of operations or the number of operands in accordance with the formula placement determination table 22b as shown in FIG. The mathematical expression arrangement for determining “x ² + 3x + 1” as the number of operands or the number of operations is determined (step A8).

Specifically, for example, when the selection formula B “2x + 5” is dragged and superimposed on the target formula A “x ² + 3x + 1” from the rear as indicated by the arrow (1), and the operator “−” is selected. Arranges the target mathematical expression A as the first term and the selection mathematical expression B as the second term, and generates a mathematical expression “(x ² + 3x + 1) − (2x + 5)” which is combined and transformed by the selected operator “−”. And stored in the modified mathematical formula data memory 26e and displayed on the formula input screen G (16) (steps A8 and A9).

Further, for example, when the selection formula B “2x + 5” is dragged from the front as shown by the arrow (2) and superimposed on the target formula A “x ² + 3x + 1”, and the operator “−” is selected, The target formula B is arranged as the first term and the selection formula A is set as the second term, and the transformed formula “(2x + 5) − (x ² + 3x + 1)” is generated by combining with the selected operator “−”, It is stored in the modified mathematical formula data memory 26e and displayed on the formula input screen G (16) (steps A8 and A9).

  Therefore, according to the pen operation calculation function of the second embodiment of the graph scientific calculator 10 having the above-described configuration, an arbitrary mathematical expression is pen-touched (P) among a plurality of mathematical expressions displayed on the mathematical expression input screen G (16). Select (selection formula B), drag and drop onto another arbitrary formula (target formula A) from behind or in front, and pen touch (P) the operator selection window RS displayed in the vicinity. Select an operator for. Then, when the selected formula B is dragged from behind the target formula A, a modified formula combined with the arrangement of “target formula A (operator) selected formula B” is generated and displayed, and dragged from the front In this case, a modified mathematical expression combined with the arrangement of “selected mathematical expression B (operator) target mathematical expression A” is generated and displayed.

  For this reason, the expression transformation that combines the displayed mathematical formulas with arbitrary four arithmetic operators in consideration of their arrangement can be quickly performed by an intuitive operation of overlapping the selected mathematical formula with the pointing device from either direction before or after the target mathematical formula. In addition, it can be performed easily (in three steps of formula selection → superposition → operator selection).

(Third embodiment)
FIG. 8 is a flowchart showing the pen operation calculation process (3) of the graph scientific calculator 10 according to the third embodiment.

  FIG. 9 is a diagram showing a display operation of the expression input screen G accompanying the pen operation calculation process (3) of the third embodiment of the graph scientific calculator 10.

  FIG. 10 is a diagram illustrating an operator determination table 22c referred to in the pen operation calculation process (3) of the third embodiment of the graph scientific calculator 10.

  In the pen operation calculation process (3) (see FIG. 8) of the third embodiment, the processes related to steps B1, B2, B4, B5, B7 to B11 are the same as the pen operation calculation process (1) of the first embodiment. ) (Refer to FIG. 3), the process is the same as that in steps S1, S2, S4, S5, S7 to S11, and detailed description thereof is omitted.

In the pen operation calculation process (3) of the third embodiment, as shown in FIG. 9, the selection formula B “2x + 5” displayed on the formula input screen G (16) is pen-touched (P) and displayed in reverse (h1 ), And when dragging and dropping to the position of the target mathematical expression A “x ² + 3x + 1” (steps B1 to B5), the coordinate sequence corresponding to the locus of the touch position detected by the touch panel 17 during the dragging is a drag locus. It is recorded in the coordinate memory 26d (step B3).

When the selection formula B “2x + 5” is superimposed on the target formula A “x ² + 3x + 1”, the selection formula B “2x + 5” determined according to the coordinate sequence recorded in the drag trajectory coordinate memory 26d. Based on the drag directions (1) to (4) with respect to the target formula A “x ² + 3x + 1”, the selection formula B is combined with the target formula A according to the operator determination table 22c as shown in FIG. A binary operator (four arithmetic operators) is determined (step B6).

Specifically, for example, when the selected formula B “2x + 5” is dragged from above and overlapped with the target formula A “x ² + 3x + 1” as indicated by the arrow (1), the target formula A and the selected formula A mathematical expression “(x ² + 3x + 1) × (2x + 5)” obtained by combining B with the operator “×” is generated and stored in the modified mathematical expression data memory 26e, and on the expression input screen G (16). Displayed (steps B6 and B7).

Further, for example, when the selection formula B “2x + 5” is dragged from behind and superimposed on the target formula A “x ² + 3x + 1”, as shown by the arrow (2), the target formula A and the selection formula B Are transformed by combining them with the operator “+”, and a modified formula “(x ² + 3x + 1) + (2x + 5)” is generated and stored in the modified formula data memory 26e and displayed on the formula input screen G (16). (Steps B6 and B7).

Similarly, when the selection formula B “2x + 5” is dragged from below and overlapped with the target formula A “x ² + 3x + 1” as indicated by the arrow (3), the target formula A and the selection formula B When the mathematical expression “(x ² + 3x + 1) / (2x + 5)” is generated by combining the two by the operator “÷” and further dragged from the front as shown by the arrow (4), A mathematical expression “(x ² + 3x + 1) − (2x + 5)” obtained by combining the target mathematical expression A and the selected mathematical expression B with the operator “−” is generated.

  Therefore, according to the pen operation calculation function of the graph scientific calculator 10 having the above-described configuration according to the third embodiment, an arbitrary mathematical expression among a plurality of mathematical expressions displayed on the mathematical expression input screen G (16) is pen-touched (P). Select (selection formula B) and drag and drop it on any other formula (target formula A) from either the top, bottom, left or right. Then, when the selected formula B is dragged from above the target formula A, a modified formula combined with the operator of “target formula A (×) selected formula B” is generated and displayed, and dragged from behind Is generated and displayed as a modified formula combined with an operator of “target formula A (+) selection formula B”, and when dragged from below, it is combined with an operator of “target formula A (÷) selection formula B” The modified mathematical expression is generated and displayed, and when dragged from the front, the modified mathematical expression combined with the operator of “target mathematical expression A (−) selected mathematical expression B” is generated and displayed.

  For this reason, an expression operation for combining a plurality of displayed mathematical expressions by an arbitrary arithmetic operator can be quickly and easily performed by an intuitive operation of superimposing a selected mathematical expression by a pointing device from either the top, bottom, left, or right of the target mathematical expression ( It is possible to do this in two steps of formula selection → superposition.

(Fourth embodiment)
FIG. 11 is a flowchart showing a pen operation calculation process (4) of the fourth embodiment of the graph scientific calculator 10.

  FIG. 12 is a diagram illustrating a display operation of the expression input screen G accompanying the pen operation calculation process (4) of the fourth embodiment of the graph scientific calculator 10.

  In the pen operation calculation process (4) of the fourth embodiment (see FIG. 11), the processes related to steps C1 to C3, C7, C8, and C9 to C13 are the same as the pen operation calculation process (3 of the third embodiment). ) (See FIG. 8), the processing is the same as the processing related to steps B1 to B3, B4, B5, B7 to B11, and detailed description thereof is omitted.

Also in the pen operation calculation process (4) of the fourth embodiment, the selection formula B “2x + 5” displayed on the formula input screen G (16) is pen-touched (P) as in the third embodiment shown in FIG. ) In reverse video (h1) and when dragging to the position of the target mathematical expression A “x ² + 3x + 1” (steps C1 and C2), coordinates corresponding to the locus of the touch position detected by the touch panel 17 during the dragging The column is recorded in the drag locus coordinate memory 26d (step C3).

  Then, as shown in FIG. 12, when it is determined that the selected formula B being dragged is located in the vicinity (within a predetermined range) of another formula (in this case, the target formula A) (step C4 (Yes)). Based on the drag directions (1) to (4) with respect to the other formulas of the selection formula B determined according to the coordinate sequence recorded in the drag trajectory coordinate memory 26d, the same operators as in the third embodiment In accordance with the decision table 22c (see FIG. 10), a binary operator (four arithmetic operators) for combining the selected equation B with the other equation is determined (step C5), and a mark Mn of the determined operator pops up. It is displayed (step C6).

Specifically, when the selection formula B “2x + 5” pen-touched (P) is dragged from above the target formula A “x ² + 3x + 1” as indicated by the arrow (1), the operator determination table 22c ( A mark M1 indicating an operator (×) determined according to FIG. 10) is popped up, and as shown by an arrow (2), when dragging from behind the target mathematical formula A “x ² + 3x + 1”, A mark M2 indicating the determined operator (+) is displayed as a pop-up (steps C2 to C6).

  Similarly, although not shown, when the selected formula B is brought closer to the lower side of the target formula A, a mark M3 indicating the determined operator (÷) is displayed in a pop-up manner, and when the selected formula B is approached from the front, it is decided. A mark M4 indicating the operator (−) is displayed in a pop-up (steps C2 to C6).

Thereafter, while confirming an operator determined according to the drag direction of the selected formula B with respect to the target formula A by a pop-up display, the selected formula is displayed from the rear where the desired operator (for example, (+)) is pop-up displayed. When B is dragged and dropped onto the target formula A (steps C2 to C8 (Yes)), the formula “(x ² + 3x + 1) transformed by combining the target formula A and the selected formula B with the operator“ + ”. + (2x + 5) "is generated and stored in the modified mathematical formula data memory 26e and displayed on the formula input screen G (16) (steps C7 to C9).

  Therefore, according to the pen operation calculation function of the fourth embodiment of the graph scientific calculator 10 having the above-described configuration, an arbitrary mathematical expression is pen-touched (P) among a plurality of mathematical expressions displayed on the mathematical expression input screen G (16). Select (selection formula B), and drag toward another arbitrary formula (target formula A). When approaching from above, the operator (x) is approached. When approaching from the back, the operator (×) An operator (÷) pops up from the lower side when the + symbol is applied from below, and an operator (−) pops up when the user approaches from the front. Then, when the selected formula B is approached from the direction in which the desired operator is guided and dropped on the target formula A, the modified formula “target formula A (operator) selected formula B coupled by the operator displayed by the guide is displayed. Is generated and displayed.

  For this reason, the intuitive transformation of combining a plurality of displayed mathematical expressions by arbitrary four arithmetic operators while overlapping the selected mathematical expression by the pointing device while confirming the operator from the top, bottom, left or right direction of the target mathematical expression. It is possible to perform the operation quickly and easily (in two steps of formula selection → superposition (simultaneous operator confirmation)).

In each of the above embodiments, the pointing device for detecting the position designated by the user on the formula input screen G (16) or dragging and dropping the formula is configured using the touch panel 17, but the mouse is used. You may comprise similarly using this. In addition, as the dragged mathematical expression, for example, “3x + 1” in “x ² + 3x + 1” may be selected as a part of the mathematical expression by selecting a part of the inputted mathematical expression.

  Each processing method by the graph scientific calculator 10 described in each of the embodiments, that is, the pen operation calculation process of the first embodiment shown in the flowchart of FIG. 3, and the pen operation calculation process of the second embodiment shown in the flowchart of FIG. Each method such as the pen operation calculation process of the third embodiment shown in the flowchart of FIG. 8 and the pen operation calculation process of the fourth embodiment shown in the flowchart of FIG. 11 is a program that can be executed by a computer. It can be stored in a storage medium 23 such as a memory card (ROM card, RAM card, etc.), magnetic disk (floppy disk, hard disk, etc.), optical disk (CD-ROM, DVD, etc.), semiconductor memory, etc. for distribution. Then, the computer (CPU 21) of the electronic computer (10) having the touch panel display unit 16 (17) reads the program stored in the storage medium 23 into the storage device 22, and the operation is controlled by the read program. Thus, the mathematical expression deformation calculation function by the pen operation described in each of the embodiments can be realized, and the same processing by the method described above can be executed.

  Further, program data for realizing each of the above methods can be transmitted on the communication network N in the form of a program code, and the program can be transmitted from a computer device (program server 30) connected to the communication network N. Data can be taken into an electronic calculator (10) having a touch panel display unit 16 (17) and stored in the storage device 22 to realize the mathematical expression deformation calculation function by the pen operation described above.

  Note that the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the scope of the invention at the stage of implementation. Further, each of the embodiments includes inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some constituent elements are deleted from all the constituent elements shown in each embodiment or some constituent elements are combined in different forms, the problems described in the column of the problem to be solved by the invention If the effects described in the column “Effects of the Invention” can be obtained, a configuration in which these constituent requirements are deleted or combined can be extracted as an invention.

  Hereinafter, the invention described in the scope of claims of the present application will be appended.

[1]
Formula display means for displaying a plurality of formulas on the display unit;
Formula dragging means for selecting and dragging the formula displayed on the display unit in response to a user operation;
An operator menu display means for displaying a selection menu of binary operators on the display section when the formula selected by the formula drag means is dragged to another formula displayed on the display section;
When an arbitrary operator is selected in accordance with a user operation from the selection menu of binary operators displayed by the operator menu display means, the dragged mathematical expression and another mathematical expression are selected as the selected mathematical expression. Formula combination means for combining by an operator and displaying on the display unit;
A computing device comprising:

[2]
A drag direction determination unit that determines a direction in which the formula is dragged by the formula drag unit;
The mathematical expression combining means is
When an arbitrary operator is selected in accordance with a user operation from a selection menu of binary operators displayed by the operator menu display means, the dragged formula and another formula are determined in the drag direction. The term arrangement of each mathematical expression according to the direction determined by the means is combined by the selected operator and displayed on the display unit.
The computing device according to [1], wherein

[3]
Formula display means for displaying a plurality of formulas on the display unit;
Formula dragging means for selecting and dragging the formula displayed by the formula display means according to a user operation;
Drag direction determination means for determining the direction in which the mathematical expression is dragged by the mathematical expression drag means;
Operator determining means for determining an operator according to the dragged direction of the mathematical expression determined by the drag direction determining means;
When the formula selected by the formula drag means is dragged to another formula displayed on the display unit, the dragged formula and the other formula are determined by the operator determined by the operator determination means. Formula combination means for combining and displaying on the display unit by
A computing device comprising:

[4]
Formula approach determination means for determining whether the formula dragged by the formula drag means approaches within a certain range with other formulas displayed on the display unit;
When it is determined that the dragged mathematical formula has approached a certain range with the other mathematical formulas displayed on the display unit by the mathematical formula approach judging means, the operator determined by the operator determining means is the display unit. Operator display means to be displayed on
The computer according to [3], comprising:

[5]
A program for controlling a computer having a display unit,
The computer,
Formula display means for displaying a plurality of formulas on the display unit,
Formula dragging means for selecting and dragging the formula displayed on the display unit according to a user operation,
Operator menu display means for displaying a selection menu of binary operators on the display section when the formula selected by the formula drag means is dragged to another formula displayed on the display section;
When an arbitrary operator is selected in accordance with a user operation from the selection menu of binary operators displayed by the operator menu display means, the dragged mathematical expression and another mathematical expression are selected as the selected mathematical expression. Formula combining means for combining by an operator and displaying on the display unit,
Program to function as.

[6]
A program for controlling a computer having a display unit,
The computer,
Formula display means for displaying a plurality of formulas on the display unit,
Formula dragging means for selecting and dragging the formula displayed by the formula display means in response to a user operation,
Drag direction determination means for determining the direction in which the mathematical expression is dragged by the mathematical expression drag means,
Operator determining means for determining an operator according to the dragged direction of the mathematical expression determined by the drag direction determining means;
When the formula selected by the formula drag means is dragged to another formula displayed on the display unit, the dragged formula and the other formula are determined by the operator determined by the operator determination means. Formula combination means for combining and displaying on the display unit by
Program to function as.

10 ... Graph scientific calculator (calculator)
DESCRIPTION OF SYMBOLS 11 ... Key input part 12 ... Number, character, operation symbol key group 13 ... Calculation function setting key group 14 ... Mode setting key group 15 ... Cursor key 16 ... Liquid crystal dot matrix type display part 17 ... Touch panel 21 ... Control part (CPU)
DESCRIPTION OF SYMBOLS 22 ... Memory | storage device 22a ... Computer control program 22b ... Formula arrangement | positioning determination table 22c ... Operator determination table 23 ... External storage medium 24 ... Storage medium reading part 25 ... Communication control part 26 ... RAM
26a ... Display data memory 26b ... Selected formula data memory 26c ... Target formula data memory 26d ... Drag locus coordinate memory 26e ... Deformed formula data memory 26f ... Formula calculation data memory 30 ... Web server N ... Communication network G ... Formula input screen P ... Pen touch x ... Drag h1 ... Reverse display (selected formula)
h2 ... Reverse display (target formula)
RS ... Operator selection window (pop-up)
A ... Target formula B ... Selected formula Mn ... Operator mark (pop-up)

Claims (6)

Formula display means for displaying a plurality of formulas on the display unit;
Formula dragging means for selecting and dragging the formula displayed on the display unit in response to a user operation;
An operator menu display means for displaying a selection menu of binary operators on the display section when the formula selected by the formula drag means is dragged to another formula displayed on the display section;
When an arbitrary operator is selected in accordance with a user operation from the selection menu of binary operators displayed by the operator menu display means, the dragged mathematical expression and another mathematical expression are selected as the selected mathematical expression. Formula combination means for combining by an operator and displaying on the display unit;
A computing device comprising: A drag direction determination unit that determines a direction in which the formula is dragged by the formula drag unit;
The mathematical expression combining means is
When an arbitrary operator is selected in accordance with a user operation from a selection menu of binary operators displayed by the operator menu display means, the dragged formula and another formula are determined in the drag direction. The term arrangement of each mathematical expression according to the direction determined by the means is combined by the selected operator and displayed on the display unit.
The computing device according to claim 1, wherein: Formula display means for displaying a plurality of formulas on the display unit;
Formula dragging means for selecting and dragging the formula displayed by the formula display means according to a user operation;
Drag direction determination means for determining the direction in which the mathematical expression is dragged by the mathematical expression drag means;
Operator determining means for determining an operator according to the dragged direction of the mathematical expression determined by the drag direction determining means;
When the formula selected by the formula drag means is dragged to another formula displayed on the display unit, the dragged formula and the other formula are determined by the operator determined by the operator determination means. Formula combination means for combining and displaying on the display unit by
A computing device comprising: Formula approach determination means for determining whether the formula dragged by the formula drag means approaches within a certain range with other formulas displayed on the display unit;
When it is determined that the dragged mathematical formula has approached a certain range with the other mathematical formulas displayed on the display unit by the mathematical formula approach judging means, the operator determined by the operator determining means is the display unit. Operator display means to be displayed on
The computer according to claim 3, further comprising: A program for controlling a computer having a display unit,
The computer,
Formula display means for displaying a plurality of formulas on the display unit,
Formula dragging means for selecting and dragging the formula displayed on the display unit according to a user operation,
Operator menu display means for displaying a selection menu of binary operators on the display section when the formula selected by the formula drag means is dragged to another formula displayed on the display section;
When an arbitrary operator is selected in accordance with a user operation from the selection menu of binary operators displayed by the operator menu display means, the dragged mathematical expression and another mathematical expression are selected as the selected mathematical expression. Formula combining means for combining by an operator and displaying on the display unit,
Program to function as. A program for controlling a computer having a display unit,
The computer,
Formula display means for displaying a plurality of formulas on the display unit,
Formula dragging means for selecting and dragging the formula displayed by the formula display means in response to a user operation,
Drag direction determination means for determining the direction in which the mathematical expression is dragged by the mathematical expression drag means,
Operator determining means for determining an operator according to the dragged direction of the mathematical expression determined by the drag direction determining means;
When the formula selected by the formula drag means is dragged to another formula displayed on the display unit, the dragged formula and the other formula are determined by the operator determined by the operator determination means. Formula combination means for combining and displaying on the display unit by
Program to function as.

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