Added Apfloat library and shortcuts for application
Fixed gitignore
Fixed validation of constants and unary minus
Added support for NaN and infinity results
Fixed validation of constants and unary minus
Added validation for input
Incremented version
Upated README, removed outdated tests
Added constants and exp function
Added precision control and switching between radians and degrees
User can back to previous operation
Added missing functions to README
Removed debug lines
Updated README
Added support for max and min functions
Fixed decimal numbers bug
Created README
Added license
Initial commit, created basic functionality