HP35boy

HP35boy is a HP35 Emulator for Arduboy. The HP-35 was Hewlett-Packard's first pocket calculator and the world's first scientific pocket calculator: a calculator with trigonometric and exponential functions. https://en.wikipedia.org/wiki/HP-35

Install on your Arduboy

Check http://arduboy.ried.cl

Credits

The whole emulator was written by http://home.citycable.ch/pierrefleur/Jacques-Laporte/HP35_Arduino.htm, this is merely an adaptation for the Arduboy form factor. Please check rom.h credits for the original license text

ROM with bug

To use an alternative version of the ROM with the exp(ln(2.02))=2 bug, hold button B when booting. http://www.jacques-laporte.org/HP3520bug.htm