HP F2231AA User Guide - Page 40

40 Section 2: Percentage and Calendar Functions Number of Days Between Dates To calculate the number of days between two given dates: 1. Key in the earlier date and press \. 2. Key in the later date and press gÒ. The answer shown in the display is the actual number of days between the two dates, including leap days (the extra days occurring in leap years), if any. In addition, the hp 12c platinum also calculates the number of days between the two dates on the basis of a 30-day month. This answer is held inside the calculator; to display it, press ~. Pressing ~ again will return the original answer to the display. Example: Simple interest calculations can be done using either the actual number of days or the number of days counted on the basis of a 30-day month. What would be the number of days counted each way, to be used in calculating the simple interest accruing from June 3, 2004 to October 14, 2005? Assume that you normally express dates in the month-day-year format. Keystrokes Display gÕ 11.09 6.032004\ 10.142005gÒ ~ 6.03 498.00 491.00 Sets date format to month-day-year. (Display shown assumes date remains from preceding example.) Keys in the earlier date and separates it from the later date. Keys in the later date. Display shows actual number of days. Number of days counted on the basis of a 30-day month. File name: hp 12c pt_user's guide_English_HDPMF123E27 Page: 40 of 275 Printed Date: 2005/8/1 Dimension: 14.8 cm x 21 cm