New member, RPN Calculator for iOS

[Felix Stehli]

Hi all

This is my first post to this forum, although I have been reading this stuff for quite a while. I am interested in programmable handheld calculators since they came out in the early seventies. As I couldn’t afford an HP-25 (let alone an HP-65…) I had to settle for a Texas Instruments SR-56 (thanks Gene for your interesting talk about this machine which brought some memories back!). Now I am the proud owner of an HP-67 (card reader repaired and battery pack renewed) and I like the sound the calculator makes when a card is pulled in… I still love to program some of these little machines now and then.

Since I wanted to have a RPN calculator with good programming capabilities for my iPhone, I made one of my own. It’s called ThetaCalc and is available for free on the App Store. Maybe you give it a try and let me know what you think.

Cheers
Felix