HP Forum Archive 21

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Is There A 39gII Applet or Program yet which does RPN? Message #1 Posted by Jake Schwartz on 4 Oct 2012, 4:09 p.m. Hi, I was just wondering from the 39gII user community whether anyone has yet attempted to fashion a program or applet which would simulate run-mode RPN on that machine. It seems like it would be a fun project. Thanks, Jake

Re: Is There A 39gII Applet or Program yet which does RPN? Message #2 Posted by hpnut on 4 Oct 2012, 10:45 p.m., in response to message #1 by Jake Schwartz I support Jake's suggestion. To me, HP calculators must have RPN. cheers, hpnut in Malaysia

Re: Is There A 39gII Applet or Program yet which does RPN? Message #3 Posted by C.Ret on 5 Oct 2012, 3:18 a.m., in response to message #2 by hpnut Be aware that an advanced calculator manipuling vectors, matrix, list, local variable as well as private subroutine, symbolic expression is closer to an RPL calculator than an RPN one ! :-) Edited: 5 Oct 2012, 3:19 a.m.

Re: Is There A 39gII Applet or Program yet which does RPN? Message #4 Posted by Gilles Carpentier on 5 Oct 2012, 11:53 a.m., in response to message #3 by C.Ret Long time ago, I wrote in Turbo Pascal an interpreted RPN language wich was a mixt of RPL and Forth With the powerfull embeded language of the 39gII it is possible to write this. But i see some big limitations about : - Interactive usage and displaying stack - Energy cnosumption in this interactive usage - 39gII language don't allow to use "paramaters per variable" nor pointer - I don't find such thing as the VTYPE command in the 39gII If I have some time I will try what it can be do ....

Re: Is There A 39gII Applet or Program yet which does RPN? Message #5 Posted by Eddie W. Shore on 5 Oct 2012, 7:33 a.m., in response to message #1 by Jake Schwartz I will have to look at my notes, but I think I have done an RPN program for the 39G once.

Re: Is There A 39gII Applet or Program yet which does RPN? Message #6 Posted by M. Joury on 22 Oct 2012, 1:26 p.m., in response to message #1 by Jake Schwartz I wrote a program for the 39gs that supports basic RPN. About the level of an HP35 or perhaps an HP45. Don't know that it would work on a 39gII though. If I ever pick up a 39gII I will convert it to that platform. -Marwan

Re: Is There A 39gII Applet or Program yet which does RPN? Message #7 Posted by Namir on 31 Oct 2012, 4:28 p.m., in response to message #6 by M. Joury Hello Maruan, There is no 39gII app for RPN. The closest I can think of (and I have been using that machine a lot recently) is a series of function(s) that initialize the stack (in a column matrix that has 4 rows representing the stack) and then using other functions to execute math operations and evaluate functions. Each function would return the matrix that simulates the stack. This is a simple approach, but might actually works by using the Pascal-like programming language of the machine. Namir

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