linear_algebra.h File Reference

Linear algebra functions utility header. More...

#include <math.h>

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Classes
struct	vector3_t
struct	matrix3x3_t

Functions
static float	vector3_magnitude (const vector3_t vec)
	Calculate the magnitude of a 3D vector.
static vector3_t	vector3_normalize (const vector3_t vec)
	Normalize a 3D vector.
static vector3_t	matrix_multiply_vector3 (const matrix3x3_t *mat, const vector3_t *in)
	Multiply a 3x3 matrix with a 3D vector.
static matrix3x3_t	matrix_multiply_matrix3x3 (const matrix3x3_t *a, const matrix3x3_t *b)
	Multiply a 3x3 matrix with another 3x3 matrix.

Detailed Description

Linear algebra functions utility header.

Basic floating point vector and matrix types and operations.

Author

Irving Wang (irvin.nosp@m.gw@p.nosp@m.urdue.nosp@m..edu)

Function Documentation

matrix_multiply_matrix3x3()

static matrix3x3_t matrix_multiply_matrix3x3 ( const matrix3x3_t * a, const matrix3x3_t * b )

inlinestatic

Multiply a 3x3 matrix with another 3x3 matrix.

Parameters

a	The first input matrix
b	The second input matrix

Returns

The resulting matrix AB.

matrix_multiply_vector3()

static vector3_t matrix_multiply_vector3 ( const matrix3x3_t * mat, const vector3_t * in )

inlinestatic

Multiply a 3x3 matrix with a 3D vector.

Parameters

mat	The input matrix
in	The input vector

Returns

The resulting vector.

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vector3_magnitude()

static float vector3_magnitude ( const vector3_t vec )

inlinestatic

Calculate the magnitude of a 3D vector.

Parameters

vec	The input vector

Returns

The magnitude of the vector.

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vector3_normalize()

static vector3_t vector3_normalize ( const vector3_t vec )

inlinestatic

Normalize a 3D vector.

Parameters

vec	The input vector

Returns

The normalized vector.

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