Overview of implemented "math.h" functions

No.	Function	Description
1	int abs(int x)	computes absolute value of an integer value
2	long double acos(double x)	computes arc cosine
3	long double asin(double x)	computes arc sine
4	long double atan(double x)	computes arc tangent
5	long double ceil(double x)	returns the nearest integer not less than the given value
6	long double cos(double x)	computes cosine
7	long double exp(double x)	returns e raised to the given power
8	long double fabs(double x)	computes absolute value of a floating-point value
9	long double floor(double x)	returns the nearest integer not greater than the given value
10	long double fmod(double x, double y)	remainder of the floating-point division operation
11	long double log(double x)	computes natural logarithm
12	long double pow(double base, double exp)	raises a number to the given power
13	long double sin(double x)	computes sine
14	long double sqrt(double x)	computes square root
15	long double tan(double x)	computes tangent