U libc biblioteci pod Linux-om, u math.h header-u imaš konstantu M_PI.
Verovatno i pod Windows-om postoji slična konstanta u nekom sličnom header-u.
"Verovatno da preko nje mnoge sile kontrolišu mnogo šta..." - GANDOR
"Kada bi ljudski mozak bio tako jednostavan da bismo mogli da ga shvatimo, onda bismo mi bili toliko glupi da ga ipak ne bismo mogli shvatiti."
U slucaju Windows-a i Mingw/GCC imas u math.h, evo deo ovog zaglavlja:
Code:
/*
* math.h
* This file has no copyright assigned and is placed in the Public Domain.
* This file is a part of the mingw-runtime package.
* No warranty is given; refer to the file DISCLAIMER within the package.
*
* Mathematical functions.
*
*/