| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve operability and to improve the reliability of a calculated result by calculating the two calculated results based on the periods of both inclusion and one omission by the input of one time in calculation relating to a date. SOLUTION: This computer is provided with a CPU 6 and a ROM 5 and a RAM 4 connected to it. The CPU 6 performs an input reception processing by the operation of an operation key group 3, also performs all arithmetic operations relating to a four-fundamental-arithmetic-rule calculation function, a date calculation function, a calendar function and a tax rate calculation function and controls the display of an LCD 2 through a liquid crystal driving circuit 7. In the case of performing the calculation relating to the date based on the period of both inclusion for including the dates at both ends and the period of the one omission for including only the date at one end, the computer performs both of the calculation based on the period of both inclusion and the calculation based on the period of the one omission without specifying based on which one of the period of both inclusion and the period of one omission the calculation is to be performed. In order to obtain the two calculated results, the date for indicating a first day and an end day or a numerical value for indicating a period length is inputted just once.</p> |
