ProgCalc RPN Programmer Calculator-Free!

Now also available: ProgCalcPlus-includes floating point support, up to 10 macro programs, over 20 additional functions, and more. ProgCalc is a comprehensive RPN calculator designed for programmers. Important features found in this calculator that are not common in other calculators include the binary display, signed/unsigned mode, the modulo (hashing) function, byte/word swapping, 2s complement function and many more.