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11: Time, Appointments, and Date Arithmetic 151
File name : 17BII-Plus-Manual-E-PRINT-030709 Print data : 2003/7/11
2. Key in the second date and press
«
.
3. Press ¬
,
-
, or
®
to calculate the number of days
using that calendar.
Example: Calculating the Number of Days between Two Dates. Find
the number of days between April 20, 2003 and August 2, 2040, using
both the actual calendar and the 365-day calendar. Assume the date
format is month/day/year.
Keys: Display: Description:
Y
E
" Displays CALC menu.
4.202003
ª
"
A1:H#8"
(+?$(?$((% F4<"
Stores Apr. 20, 2003
as first date and
displays its day of the
week.
8.022040
«
"
A1:H$"
8(*?($?$(+( :M4"
Stores Aug. 2, 2040 as
second date.
¬
17:419 A1@F8"
#%K'#,&(("
Calculates actual
number of intervening
days.
®
%'. A1@F8#%K'(,&((" Calculates number of
intervening days by a
365-day calendar.
Calculating Past or Future Dates
To calculate a date a specified number of days from another date:
1. Key in the known date (for today’s date, use ¯
) and press
ª
.
2. Key in the number of days. This number should be negative if the
unknown date precedes the known date. Press
¬
.