bc | The GNU bc arbitrary precision calculator language | Mehr ...
GNU bc is an interactive algebraic language with arbitrary precision which follows the POSIX 1003.2 draft standard, with several extensions including multi-character variable names, an `else' statement and full Boolean expressions. GNU bc does not require the separate GNU dc program. Home page: http://directory.fsf.org/GNU/bc.html
dc | The GNU dc arbitrary precision reverse-polish calculator | Mehr ...
GNU dc is a reverse-polish desk calculator which supports unlimited precision arithmetic. It also allows you to define and call macros. . A reverse-polish calculator stores numbers on a stack. Entering a number pushes it on the stack. Arithmetic operations pop arguments off the stack and push the results. Home page: http://directory.fsf.org/GNU/bc.html