| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an electronic calculator capable of, when taking in a function needing mathematically natural notation, taking in a sufficient range covered by the function. <P>SOLUTION: When an intake input mode is set and a 2D (dimension) function key such as "√" or "a/b" is operated for the input in a state where a cursor Cu has been moved to an optional position on the formula displayed by the key input, the range of the formula covered by the inputted 2D function (or to be calculated) is taken in based on a position of the cursor Cu by recognizing a formula part sandwiched by parentheses or a chunk of a formula part of a function with parentheses, recognizing a chunk of a formula part of the 2D function, recognizing a chunk of a formula part with successive numerals and characters, and recognizing a presence position of an arithmetic symbol ("+", "-", "×", or "÷") or a delimiter (":" or ","). The inputted 2D function is displayed as the formula wherein a formula part in the correct maximum range on the formula is taken in and inserted in the natural notation form. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
