Small command line utility for evaluating simple mathematical expressions. Implements a recursive descent parser converting input, infix expression to a postfix expression, which is then evaluated to output result.
Simply invoke the binary followed by some expression you wish to evaluate
$ calculate 2*2
2*2 = 24.000000
Supports +, -, * ,/, ^ operators, as well as sin, cos, tan, asin, acos, atan, log and exp functions.
Requires c99 compatible compiler. Tested with cl.exe version 19.24.28314, gcc version 8.3.0 and clang 9.0.0
On windows, run build.bat (assuming you are running a terminal that has developer tools, i.e. cl.exe)
On linux/macos, run ./build.sh (assuming you are running bash and have gcc)