A fine RPN calculator.

This is the nicest app Ive found to date, perhaps partly for reasons of nostalgia. If you dont know RPN, learn about it first before scrapping this app. Folks clearly arent rating this app according to its capability, but rather according to what they expect from a standard calculator. Thankfully,this isnt standard. Reminds me of my phenomenal 20-year-old HP.

Kudos to the author! Great work here, and kindness for giving it away.

CalebPM about ND0 RPN Graphing Calculator