Some Math Library Functions

name	description	parameter and return value types	include file
abs	absolute value	int abs(int n)	cstdlib
ceil	round the value up to the next whole number (ceiling)	double ceil(double x)	cmath
exp	e raised to power of x	double exp(int x)	cmath
floor	round the value down to the previous whole number (floor)	double floor (double x)	cmath
log	natural logarithm	double log(double x)	cmath
pow	raise x to the power of y	double pow (double x, double y)	cmath
sqrt	square root	double sqrt(double x)	cmath