Other_Math

Description

Math functions that don't fit elsewhere.

<rc/math/other.h>

Author

James Strawson

Date

2016

Functions
float	rc_get_random_float (void)
	Returns a random floating point number between -1 and 1. More...
double	rc_get_random_double (void)
	Returns a random double-precision floating point number between -1 and 1. More...
int	rc_saturate_float (float *val, float min, float max)
	Modifies val to be bounded between between min and max. More...
int	rc_saturate_double (double *val, double min, double max)
	Modifies val to be bounded between between min and max. More...

Function Documentation

rc_get_random_float()

float rc_get_random_float

(

void

)

Returns a random floating point number between -1 and 1.

Uses standard C rand function and bitwise operations which is much faster than doing floating point arithmetic.

Returns

random floating point number between -1 and 1

rc_get_random_double()

double rc_get_random_double

(

void

)

Returns a random double-precision floating point number between -1 and 1.

Uses standard C rand function and bitwise operations which is much faster than doing floating point arithmetic.

Returns

random double-precision floating point number between -1 and 1

rc_saturate_float()

int rc_saturate_float	(	float *	val,
		float	min,
		float	max
	)

Modifies val to be bounded between between min and max.

Parameters

	val	The value to be checked and possibly modified
[in]	min	The lower bound
[in]	max	The upper bound

Returns

Returns 1 if saturation occurred, 0 if val was already in bound, and -1 if min was falsely larger than max.

rc_saturate_double()

int rc_saturate_double	(	double *	val,
		double	min,
		double	max
	)

Modifies val to be bounded between between min and max.

Parameters

	val	The value to be checked and possibly modified
[in]	min	The lower bound
[in]	max	The upper bound

Returns

Returns 1 if saturation occurred, 0 if val was already in bound, and -1 if min was falsely larger than max.

Examples:

rc_balance.c.