iPhone and iPod Touch


RPNPlus is a classic scientific RPN (Reverse Polish Notation) calculator.

Its stack behavior is similar to that of classic RPN calculators. Start using RPNPlus, and you won't want to use anything else. It was, in fact, the first release I had on to the App Store. RPNPlus features:
  • Saves state when you quit
  • Complete support of almost all scientific/trigonometric functions
  • Set the # of digits after decimal
  • Fixed and Scientific Notation
  • Exponent (EE) button
  • Use Degrees or Radians for Trig. Functions
  • Factoring “MiniApp”