Function calculator having help display function

A function calculator and function technology, applied in complex mathematical operations, etc., can solve problems such as complex, unclear input variables, and inability to display input formats

Active Publication Date: 2008-10-01
CASIO COMPUTER CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the function calculator currently proposed above, before inputting a desired calculation formula, the user can use the help display guide to display the description of the function formula and the input format of the argument for each functional formula displayed in the menu, and input the formula as it is. The function expression selected on the menu display screen is used, but in the process of actually inputting and combining the calculation expressions including the function expression, what is the argument of the function at each input position and what is the argument cannot be displayed. input format for
[0009] Therefore, especially when, as an argument of a certain functional formula, a different type of functional formula is further enclosed in brackets or the like to form a desired calculation formula, the input position of each argument of several functional formulas included here (input format) becomes a complex input substate, and there is a problem of not knowing where to input what kind of independent variable

Method used

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  • Function calculator having help display function
  • Function calculator having help display function
  • Function calculator having help display function

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Experimental program
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Embodiment Construction

[0022] Embodiments of the present invention will be described below with reference to the drawings.

[0023] figure 1 It is a front view showing the appearance structure of a scientific calculator (Scientific Calculator) 10 according to an embodiment of the present invention.

[0024] On the main body casing of the scientific calculator 10, a key input unit 12 is provided from the lower end to about two-thirds of the front of the main body, and a liquid crystal display unit 13 is provided from the upper end to about one-third of the range. A transparent sensor plate 14 for detecting a contact position is superimposed on the liquid crystal display unit 13 .

[0025] The key input unit 12 has numeric keys 12a, function, symbol, and operator keys 12b, "MENU" key 12c, "SHIFT" key 12d, "OPTN" key 12e, "EXE" key 12f, cursor keys 12g, and the like.

[0026] The numeric keys 12a are composed of a numeric input key group in which numeric keys "0" to "9" and a decimal point key "." ar...

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PUM

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Abstract

A function calculator includes a display unit and an input unit which inputs an arithmetic expression containing a function in accordance with user operation. When the input unit inputs an arithmetic expression, the calculator causes the display unit to display the arithmetic expression upon the input operation. The function calculator then determines whether the cursor present on the arithmetic expression displayed on the display unit is located at a portion corresponding to a function. Upon determining that the cursor is at a portion corresponding to a function, the calculator displays format explanatory information about the function on another window on the display unit.

Description

technical field [0001] The present invention relates to a functional calculator for performing arithmetic processing by inputting a series of calculation expressions including functions, such as an electronic calculator called a functional calculator. Background technique [0002] Currently, electronic calculators called scientific calculators are widely used. In such a function calculator, it is possible to input trigonometric functions such as "sin", "cos", and "tan", differential functions "d / dx", integral functions "∫dx", logarithmic functions "log", pair (permutation) functions, etc. Various functions such as "nPr" can be used for calculation. [0003] In the scientific calculator, there are two display modes for displaying calculation expressions input by the user, namely, a line display mode and a two-dimensional display mode (also referred to as a natural display mode or a Math mode). The two-dimensional display mode displays the input calculation formula in a natu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/15
Inventor 金子亮
Owner CASIO COMPUTER CO LTD
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