SpeedCrunch

SpeedCrunch is a high-precision scientific calculator supporting expression editing, history stack, unit conversions, radix systems, complex numbers and user defined variables.

Features:

Calculations with up to 50 digits of precision History stack with value or expression recall Expression editing with system virtual keyboard Fixed decimal, scientific or engineering formats Decimal, binary, octal and hexadecimal bases Built-in functions, constants and units with search User defined variables and functions Usage instructions can be found at the project’s Github presence.