| 摘要 |
PURPOSE:To make constant calculation for all four-rule calculation even in an add mode by providing a device that judges the presence of a flag that designates division at the time of operation of a result of operation outputting key and judges the state of operation at this time. CONSTITUTION:When add mode is designated by a designating switch TS that designates amount of shifting of decimal point, and only one of placed number and =, % and other result of calculation outputting key are depressed, it is judged whether designation of function of operation is division or not by examining an operation designation flag F. In case where division is designated for operation function, inputted numerical is made the first placed number and divided by 100, and decimal point is shifted two digits, and division is made with the preserved second placed number using the first placed number, and constant operation of division is performed.
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