calc is an interactive calculator which provides for easy large numeric calculations, but which also can be easily programmed for difficult or long calculations.
It can accept a command line argument, in which case it executes that single command and exits. Otherwise, it enters interactive mode. In this mode, it accepts commands one at a time, processes them, and displays the answers. In the simplest case, commands are simply expressions which are evaluated.
This is free and open source software.
Website: www.isthe.com/chongo
Support: GitHub Code Repository
Developer: Landon Curt Noll
License: GNU Lesser General Public License v2.1

calc is written in C. Learn C with our recommended free books and free tutorials.
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