kuba314 / c-calc

IVS calculator, but not overweight

IVS calculator, but in C

Motivation

We made a calculator in python with PyQt5 and Pyinstaller, but the result was a bit over 160MB. I wanted to make something more lightweight.

Disclaimer

I will add better UI eventually. Meanwhile enjoy this console version, and this bad UI :) Oh, and it's not tested at all. I'd gladly appreciate you telling me if you find an error.

Compilation

make

Usage

./eval '2 + 3'

Features

• binary addition (+), subtraction (-), multiplication (*) and division (/)
• unary negation (-) and no op (+) for some reason
• power (^), roots (either (√ or # because inner handling))
• unary factorial (!) (actually a gamma function, because of floats)
• nesting parentheses {[()]}
• decimal numbers (1.2 or even .4)
• complex numbers (1 - 2i)
• symbols (pi, e, i (imaginary number))
• functions, although only sqrt and abs have been implemented so far
  • abs
  • sqrt, power, root
  • sin, cos, tan
  • asin, acos, atan
  • rand (0..1)
  • crand (random normalized complex number)

Prerequisities

• gtk3 (only for the UI program)

Screenshot