Post Reply 
(17BII, 19BII) Easter Sunday solver
04-04-2016, 01:07 AM (This post was last modified: 04-04-2016 01:08 AM by striegel.)
Post: #1
(17BII, 19BII) Easter Sunday solver
This program calculates the date of Easter Sunday for a given year. It is a conversion of the HP Calc solver equation for HP 95LX/100LX/200LX provided by Neil Redmond in his letter to the Palmtop Paper, printed in Volume 7 No 4 July/August 1998. (I would have provided a link to the site itself, but the link there for this particular issue is broken.)


This is one long and complex solver equation that does not evaluate quickly, so I broke it up to make it easier to check your work as it is entered. Expect it to take 6 or 8 seconds to accept it when input and possibly 20 seconds to verify on a 17BII and longer on a 19BII.
Find all posts by this user
Quote this message in a reply
04-04-2016, 01:24 AM
Post: #2
RE: (17BII, 19BII) Easter Sunday solver
This formula may only be useful for a short time to come, since the churches seem to be agreeing to a fixed date for Easter.

Still, the application of the Let and Get functions is instructive. I learned a lot by studying the technique employed here.

See too that the differences in Solver syntax here between HP LX palmtops and the 17BII and 19BII calculators is minor:
  • LX'es use commas instead of colons
  • the symbols for multiplication and division are "*" and "/" in the LX instead of "x" and "÷"
Find all posts by this user
Quote this message in a reply
08-18-2016, 10:09 PM
Post: #3
RE: (17BII, 19BII) Easter Sunday solver

it seem HP-17B solver using L a G functions.
This program working on it.
Find all posts by this user
Quote this message in a reply
Post Reply 

User(s) browsing this thread: 1 Guest(s)