goRPN was created for the RPN fans' ease of every-day use, without all those bells and whistles functions you only used at school -- never used in real life, unless you are a scientist. Besides floating point calculations with Trigonometric functions, goRPN calculates 32-bits signed/unsigned Integers with AND, OR etc. functions in Hexadecimal, Decimal, Octal or Binary display. Also, goRPN performs Currency Conversion as well as Unit Conversions from/to Metric System, Imperial Units and English Units.