#include <common/math.hpp>

const double Math::mscPI=3.14159265358979323846;
const double Math::msc2PI=3.14159265358979323846*2.00;
const double Math::mscLN10=2.30258509299405E+000;
const double Math::mscOneOverLN10=0.43429448190325E+000;
const double Math::mscPIOver180=1.74532925199433E-002;
const double Math::mscPIUnder180=5.72957795130823E+001;

float Math::power(float powerBase,int exponent)
{
	float basePower(1.00);

	if(!exponent)return 1.00;
	for(int count=0;count<exponent;count++)basePower*=powerBase;
	return basePower;
}

int Math::sqrt(int someInt)
{
	int oddInt(1);
	int oldArg(someInt);
	int firstSqrt;

	while(0<someInt){someInt-=oddInt;oddInt+=2;}
	firstSqrt=oddInt>>1;
	if(square(firstSqrt)-firstSqrt+1>oldArg)return firstSqrt+1;
	return firstSqrt;
}

long Math::factorial(long nDegree)
{
	if(nDegree)return nDegree*factorial(nDegree-1);
  else return 1L;
}