CALENDAR
Day of week, future date, past date, and number of days calculations.




Program:  CALENDAR
Author:   John P. Powers (jpp@cpdvax.csc.ti.com)
Date:     November 5, 1992

This program calculates day of week, the number of days between two
dates, and a past or future date.

Execute CALENDAR to begin the main program.  A menu is then
displayed:

  [ CMP | DATE1 | DATE2 | -DAYS | QUIT ]

Enter an early date into DATE1 and a later date into DATE2.  To enter
a date press <F2> or <F3>.  The calculator then prompts for a date. 
Type in the date in the MM.DDYYYY format.  For example, to enter
November 5, 1992, type 11.051992.

To calculate the number days between two dates, enter DATE1 and
DATE2, then press [CMP] [-DAYS].

To calculate a future date, enter DATE1 and the number of days. Press
<F4> to enter the number of days. The calculator then prompts for the
number of days.  Then press [CMP] [DATE2].  The future date is
displayed in the format MM.DDYYYY and the day of the week is
displayed.

To calculate a date in the past, enter DATE2 and the number of days,
then press [CMP] [DATE1].  The past date and day of the week is
displayed.

This program uses ACM algorithm 199.