| 摘要 |
<p>PROBLEM TO BE SOLVED: To display the date information inputted at the time of the number-of-days calculation or a date calculation and the date information of a calculation result on the calendars of two stages so that the information may be recognized respectively. SOLUTION: In the desk top electronic computer having both of the four rules of arithmetic calculation function and a calendar display function, the computer is provided with a display part 101 having two calendars which are capable of displaying the date information of at least different years and months so that they may be recognized, an input part 102 having a key for inputting at least date information and the number-of-days information and a key for executing the number-of-days calculation and a date calculation, a calculation part 103 executing the number-of-days calculation based on the first and second date information inputted from the input part 102 and executing the date calculation based on the date information as an initial date in reckoning and the number-of-days information and a control part 104 controlling the display part 101 so as to display the first and second date information inputted from the input part 102, the date information of the initial date in reckoning or the date information determined in the calculation part 103 on two calendars so that the information may be recognized.</p> |
