Notice there is no "=" sign. To add numbers type "Num 1" then "Enter", then "Num2", then "+" To subtract: "N1", "Enter", "N2", "-"
---- RPN-21 Calculator. ---- This calculator works a bit differently than the "normal" calculator and takes a bit of getting used to. Example: to add 12 and 18 use the following keystrokes: "12" "Enter" "18" "+" Don't forget to turn up the sound! *** BETA WARNING *** FIXUPS: (1-3 would take it out of BETA) 1) internal accuracy for scientific notation 2) enter negative exponents 3) push/pop register 4) clean up graphics a bit. I downloaded and edited the background calculator from: http://spyropoulos.net/hp/images/21.jpg Maybe I should show the keys being pressed? (Harder to do when you don't use sprites for the keys! LOL) Pi is only significant to 9 digits. Have fun scratching!
