Pcalc is a simple command line calculator for POSIX systems. It supports three types of mathematical notation and allows expressions to both be given as program arguments and in a prompt.

I created this project as an educational exercise for myself, but host it on Github for anyone's eventual enjoyment.

Run make in the project's root directory to compile. The software has been tested on Linux with Gcc and on OS X with Clang.

$ make

Evaluate an expression by giving it as arguments to the program

$ pcalc 32 / 4
8

or by running multiple arguments after each other in the interactive prompt mode.

$ pcalc
Type 'q' or 'quit' to exit
pcalc[i]> 3 * 7
21
pcalc[i]> -1 * ans
-21
pcalc[i]> quit

Pcalc supports infix, prefix and postfix notations through command line options.

$ pcalc -i 3 - 2
1
$ pcalc -p - 3 2
1
$ pcalc -r 3 2 -
1

Run with -h to see full option reference.

$ pcalc -h

Pcalc is developed by Jacob Wahlgren and licensed under the MIT License. See LICENSE more information.

You can reach me at jacob.wahlgren on gmail.