Help please? 20S>35S

10022015, 02:49 PM
Post: #1




Help please? 20S>35S
Had an unusual support request come in today. An elderly gentleman wrote a program for his 20S a long time ago and the unit recently died. He got a 35s which he seems happy with, but isn't sure how to translate "his program" to it...
I'd be appreciative if someone could aid. I am not knowledgeable enough about the 20S to be much help... :( Of the top of my head I'd guess it is a polar/rect conversion thing??? Many thanks. Quote:PRGM TW Although I work for HP, the views and opinions I post here are my own. 

10022015, 05:39 PM
Post: #2




RE: Help please? 20S>35S
It appears to be doing something like this.
A couple of notes:  This is 32S code. The 35S doesn't have proper rectangular/polar conversion functions.  Registers 0, 1, and 2 have been replaced with A, B, and C respectively.  I'm making the assumption that "R>" and "P<" are referring to "RShift, >R" and "LShift, >P", the torectangular and topolar conversion functions.  Without any test cases, I can't be certain that this is actually working as intended (I don't have my 20S with me at the moment to feed arbitrary figures into and compare results).  The 20S takes its arguments in the order x, y or r, θ (and returns them in that order, with y or θ in the display). Thus I may have messed up a swap somewhere. Code: LBL A 

10022015, 06:13 PM
Post: #3




RE: Help please? 20S>35S
I'll give it a try though I could be completely wrong:
Code: COS(C)*COS(B)+i*SIN(C) As with Dave's program for the HP32S the registers A, B and C are used. Example: 30 STO A 40 STO B 50 STO C R/S 84.96 60.38 Does this make sense? Cheers Thomas 

10022015, 07:30 PM
(This post was last modified: 10022015 07:32 PM by Tim Wessman.)
Post: #4




RE: Help please? 20S>35S
Thanks. It does make sense. I will pass it on to the gentleman and see if it helps. Much appreciated!
Maybe someone should have put r<=>p conversions into the 35s... :P TW Although I work for HP, the views and opinions I post here are my own. 

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