RPN83P: RPN calculator for TI-83+ TI-84+ inspired by HP-42S

[dm319]

(11-21-2023 06:00 PM)bxparks Wrote:  

(11-21-2023 03:34 AM)Thomas Klemm Wrote:  It's nice to be reminded of an old thread: Looking for TVM formulas

Yes, definitely, that is one of the links that I referenced in my USER_GUIDE.md. During the implementation of the TVM functionality in the RPN83P app, I researched and read almost every post in every thread about TVM formulas and algorithms on the hpmuseum.org site. They were extremely helpful. I was planning to summarize my findings to the recent TVM formula error in programming manual? thread shortly.

Please do! I wrote a TVM solver for the DM42 (available here) specifically for NSTK mode. I suspect it may need a bit more work/optimising though as just managed to get a divide by 0 error putting in a really big N.