math.h

This header contains all math definitions and functions. Most are them analogous to what a standard C compiler includes

General definitions

Definitions:	Numerical constants of interest
Name	Value	Description
pi	3.1415926	Value of pi with the precision allowed by a float
INT_MIN	-2147483648	The minimum possible value of a 32-bit int
INT_MAX	2147483647	The maximum possible value of a 32-bit int

Arithmetic functions

Function:	fmod
Prototype:	float fmod( float x, float y )
Description:	Calculates a float modulus: the remainder when Dividend/Divisor is truncated towards zero
Returns:
float	Result
Arguments:
float x	Dividend
float y	Divisor

Comparison functions

Function:	min
Prototype:	int min( int a, int b )
Description:	Returns the minimum of 2 integer values
Returns:
int	Result
Arguments:
int a	First value to compare
int b	Second value to compare

Function:	max
Prototype:	int max( int a, int b )
Description:	Returns the maximum of 2 integer values
Returns:
int	Result
Arguments:
int a	First value to compare
int b	Second value to compare

Function:	abs
Prototype:	int abs( int a )
Description:	Returns the absolute value of an integer
Returns:
int	Result
Arguments:
int a	The given value

Function:	fmin
Prototype:	float fmin( float x, float y )
Description:	Returns the minimum of 2 float values
Returns:
float	Result
Arguments:
float x	First value to compare
float y	Second value to compare

Function:	fmax
Prototype:	float fmax( float x, float y )
Description:	Returns the maximum of 2 float values
Returns:
float	Result
Arguments:
float x	First value to compare
float y	Second value to compare

Function:	fabs
Prototype:	float fabs( float x )
Description:	Returns the absolute value of a float
Returns:
float	Result
Arguments:
float x	The given value

Float rounding functions

Function:	floor
Prototype:	float floor( float x )
Description:	Round a float to the nearest integer, downwards
Returns:
float	Result
Arguments:
float x	Value to round

Function:	ceil
Prototype:	float ceil( float x )
Description:	Round a float to the nearest integer, upwards
Returns:
float	Result
Arguments:
float x	Value to round

Function:	round
Prototype:	float round( float x )
Description:	Round a float to the nearest integer
Returns:
float	Result
Arguments:
float x	Value to round

Trigonometric functions

Function:	sin
Prototype:	float sin( float angle )
Description:	Calculates the sine of x
Returns:
float	Result
Arguments:
float angle	Angle, given in radians

Function:	cos
Prototype:	float cos( float angle )
Description:	Calculates the cosine of x
Returns:
float	Result
Arguments:
float angle	Angle, given in radians

Function:	tan
Prototype:	float tan( float angle )
Description:	Calculates the tangent of x
Returns:
float	Result
Arguments:
float angle	Angle, given in radians

Function:	asin
Prototype:	float asin( float x )
Description:	Calculates the arc sine of x
Returns:
float	Result, given in radians
Arguments:
float x	The given value

Function:	acos
Prototype:	float acos( float x )
Description:	Calculates the arc cosine of x
Returns:
float	Result, given in radians
Arguments:
float x	The given value

Function:	atan2
Prototype:	float atan2( float x, float y )
Description:	Calculates the angle of a vector from the origin to a point with the given coordinates
Returns:
float	Result, given in radians
Arguments:
float x	X coordinate of the point
float y	Y coordinate of the point

Exponential functions

Function:	sqrt
Prototype:	float sqrt( float x )
Description:	Calculates the square root of x
Returns:
float	Result
Arguments:
float x	The given value

Function:	pow
Prototype:	float pow( float x, float y )
Description:	Calculates x raised to the power of y
Returns:
float	Result
Arguments:
float x	The base
float y	The exponent

Function:	exp
Prototype:	float exp( float x )
Description:	Calculates the exponential of x (this is: e to the power of x)
Returns:
float	Result
Arguments:
float x	The given value

Function:	log
Prototype:	float log( float x )
Description:	Calculates the natural logarithm of x (this is: with base e)
Returns:
float	Result
Arguments:
float x	The given value