Mpc is an interactive calculator equipped with user-definable functions and constants. It was conceived to calculate values from expressions and functions under the algebraic operative system with a precision selectable in the range from 10 to 295 digits, allowing implicit multiplication.
To improve accuracy the program uses excess digits. The main routines have been written in assembly and optimized in speed, nevertheless the expressions calculus may require some amount of time, depending on the selected precision and formula's complexity. Mpc works also in xterm or rxvt windows with at least 80 columns and 25 lines.