norm.c File Reference

#include <math.h>
#include "mbs_1D_array.h"

Functions
double	norm_vector (double *v, int n)
double	norminf_vector (double *v, int n)
double	norm (double v[4])
	DEPRECATED: See norm_dvec_4(). More...
void	normalize (double v[4], double vn[4])
	DEPRECATED: See normalize_dvec_1() More...
double	norminf_vector_1 (double *v, int n)
	Compute the maximum of a vector. More...
double	norm_dvec_3 (double v[3])
	compute the norm of a vector of 3 doubles, starting with index 0. More...
double	norm_dvec_4 (double v[4])
	compute the norm of a vector of 3 doubles, starting with index 1. More...
double	norm_dvec_0 (double *vec, int l_v)
	compute the norm of a [l_v sized] vector of doubles, starting with index 0 More...
double	norm_dvec_1 (double *vec, int l_v)
	compute the norm of a [l_v sized] vector of doubles, starting with index 1 More...
void	normalize_dvec_0 (double *vec, double *vn, int l_v)
	Compute the normalize vector with starting with index 0. More...
void	normalize_dvec_1 (double *vec, double *vn, int l_v)
	Compute the normalize vector with first index is 1. More...

Function Documentation

norm()

double norm

(

double

v[4]

)

DEPRECATED: See norm_dvec_4().

norm_dvec_0()

double norm_dvec_0	(	double *	vec,
		int	l_v
	)

compute the norm of a [l_v sized] vector of doubles, starting with index 0

Parameters

[in]	vec	the vector of doubles
[in]	l_v	the size of the vector

Returns

the norm of the vector:

norm_dvec_1()

double norm_dvec_1	(	double *	vec,
		int	l_v
	)

compute the norm of a [l_v sized] vector of doubles, starting with index 1

Parameters

[in]	vec	the vector of doubles
[in]	l_v	the size of the vector (0 element not taken into account)

Returns

the norm of the vector:

norm_dvec_3()

double norm_dvec_3

(

double

v[3]

)

compute the norm of a vector of 3 doubles, starting with index 0.

See norm_dvec_4() for vector starting at index 1. See norm_dvec_0() for vector of arbitrary size.

Parameters

[in]

vec

the vector of doubles.

Returns

the norm of the vector:

norm_dvec_4()

double norm_dvec_4

(

double

v[4]

)

compute the norm of a vector of 3 doubles, starting with index 1.

See norm_dvec_3() for vector starting at index 0. See norm_dvec_1() for vector of arbitrary size.

Parameters

[in]

vec

the vector of doubles.

Returns

the norm of the vector:

norm_vector()

double norm_vector	(	double *	v,
		int	n
	)

normalize()

void normalize	(	double	v[4],
		double	vn[4]
	)

DEPRECATED: See normalize_dvec_1()

Compute the normalize vector with first index is 1. The vector has unused index 0. See get_dvec_1() to such vector creation.
WARNING: if norm(v) is 0, a division by 0 will occurs.

Parameters

[in]	v	vector of size 4 with first element unused.
[in,out]	vn	the normalized vector v, index starting at 1.

normalize_dvec_0()

void normalize_dvec_0	(	double *	vec,
		double *	vn,
		int	l_v
	)

Compute the normalize vector with starting with index 0.

WARNING: if the norm of vec is 0, a division by 0 will occurs.

Parameters

[in]	vec	vector of double to be normalized.
[in,out]	vn	the normalized vector vec.
[in]	l_v	the size of the vector.

normalize_dvec_1()

void normalize_dvec_1	(	double *	vec,
		double *	vn,
		int	l_v
	)

Compute the normalize vector with first index is 1.

The vector has unused index 0. See get_dvec_1() to such vector creation.
WARNING: if norm(v) is 0, a division by 0 will occurs.

Parameters

[in]	vec	vector of double to be normalized with first element unused.
[in,out]	vn	the normalized vector vec, with first element unused.
[in]	l_v	the size of the vector (0 element not taken into account)

norminf_vector()

double norminf_vector	(	double *	v,
		int	n
	)

norminf_vector_1()

double norminf_vector_1	(	double *	v,
		int	n
	)

Compute the maximum of a vector.

Parameters

[in]	v	A vector of floats, starting with index 1.
[in]	size	The number of elements in the array.

Returns

The norm of the array.