Future Or Past Dates - HP 0012C-90001 User Manual

30 30 Section 2: Pe Pe Pe Percentage and Calendar Functions Section 2: rcentage and Calendar Functions
30 30 Section 2: Section 2: rcentage and Calendar Functions rcentage and Calendar Functions
Year. To set the date format to day-month-year, press gÔ. To key in
Day- - - - Month Day Day Day Month Month Month- - - - Year. Year. Year.
a date with this format in effect:
1. Key in the one or two digits of the day.
2. Press the decimal point key (.).
two
3. Key in the digits of the month.
4. Key in the four digits of the year.
For example, to key in 7 April, 2004:
Keystrokes Keystrokes
Keystrokes Keystrokes
7.042004
When the date format is set to day-month-year, the D.MY
display is lit. If D.MY D.MY D.MY is not lit, the date format is set to month-day-year. D.MY
The date format remains set to what you last specified until you change it; it is not
reset each time the calculator is turned on. However, if Continuous Memory is reset,
the date format is set to month-day-year.

Future or Past Dates

Future or Past Dates Future or Past Dates Future or Past Dates
To determine the date and day that is a given number of days from a given date:
1. Key in the given date and press \.
2. Key in the number of days.
3. If the other date is in the past, press Þ.
4. Press gD.
The answer calculated by the D function is displayed in a special format. The
numbers of the month, day, and year (or day, month, and year) are separated by
digit separators, and the digit at the right of the displayed answer indicates the
day of the week: 1 for Monday through 7 for Sunday.
Example: If you purchased a 120-day option on a piece of land on 14 May 2004, Example:
Example: Example:
what would be the expiration date ? Assume that you normally express dates in the
day-month-year format.
Keystrokes Keystrokes Keystrokes Keystrokes
gÔ
*
The day of the week indicated by the D function may differ from that recorded in history
for dates when the Julian calendar was in use. The Julian calendar was standard in England
and its colonies until September 14, 1752, when they switched to the Gregorian calendar.
Other countries adopted the Gregorian calendar at various times.
Display Display
Display Display
7.042004
Display Display Display Display
Sets date format to day-month-year.
7.04
(Display shown assumes date
remains from preceding example.
The full date is not now displayed
because the display format is set to
show only two decimal places, as
D.MY status indicator in the
D.MY D.MY
*