igmcore_linear_algebra Module Reference

This module provides elementary linear algebra subroutines that perform the vector and matrix operations. More...

Functions/Subroutines
real(DP), dimension(3), public	rotateX (vec, angle)
	Rotates a vector around X-axis (in Cartesian coordinate system) the amount specified by the angle parameter.
real(DP), dimension(3), public	rotateY (vec, angle)
	Rotates a vector around Y-axis (in Cartesian coordinate system) the amount specified by the angle parameter.
real(DP), dimension(3), public	rotateZ (vec, angle)
	Rotates a vector around Z-axis (in Cartesian coordinate system) the amount specified by the angle parameter.
real(DP), public	vec_length (vec)
	Gets the length of a vector.
subroutine, public	vec_normarize (vec)
	Normalizes the specified vector.
real(DP), dimension(3), public	cross (v1, v2)
	Calculates the cross product of vectors and .
real(DP), public	dot (v1, v2)
	Calculates the dot product of vectors and .

---

Detailed Description

This module provides elementary linear algebra subroutines that perform the vector and matrix operations.

Copyright (C) GFD Dennou Club, 2011-2012. All rights reserved.
license ??

Author:

Yuta Kawai

---

Function/Subroutine Documentation

real(DP),dimension(3),public igmcore_linear_algebra::cross	(	real(DP),dimension(3),intent(in)	v1,
		real(DP),dimension(3),intent(in)	v2
	)

Calculates the cross product of vectors and .

Parameters:

[in]	v1	Vector .
[in]	v2	Vector .

Returns:

The vector in which is stored the result of this cross product.

Definition at line 215 of file igmcore_linear_algebra.f90.

real(DP),public igmcore_linear_algebra::dot	(	real(DP),dimension(3),intent(in)	v1,
		real(DP),dimension(3),intent(in)	v2
	)

Calculates the dot product of vectors and .

Parameters:

[in]	v1	Vector .
[in]	v2	Vector .

Returns:

The vector in which is stored the result of this dot product.

Definition at line 248 of file igmcore_linear_algebra.f90.

real(DP),dimension(3),public igmcore_linear_algebra::rotateX	(	real(DP),dimension(3),intent(in)	vec,
		real(DP),intent(in)	angle
	)

Rotates a vector around X-axis (in Cartesian coordinate system) the amount specified by the angle parameter.

Parameters:

[in]	vec	A vector on acted by rotation matrix R .
[in]	angle	Rotation angle specified in radians.

Returns:

The vector after rotation ( ).

Definition at line 51 of file igmcore_linear_algebra.f90.

real(DP),dimension(3),public igmcore_linear_algebra::rotateY	(	real(DP),dimension(3),intent(in)	vec,
		real(DP),intent(in)	angle
	)

Rotates a vector around Y-axis (in Cartesian coordinate system) the amount specified by the angle parameter.

Parameters:

[in]	vec	A vector on acted by rotation matrix R .
[in]	angle	Rotation angle specified in radians.

Returns:

The vector after rotation ( ).

Definition at line 86 of file igmcore_linear_algebra.f90.

real(DP),dimension(3),public igmcore_linear_algebra::rotateZ	(	real(DP),dimension(3),intent(in)	vec,
		real(DP),intent(in)	angle
	)

Rotates a vector around Z-axis (in Cartesian coordinate system) the amount specified by the angle parameter.

Parameters:

[in]	vec	A vector on acted by rotation matrix R .
[in]	angle	Rotation angle specified in radians.

Returns:

The vector after rotation ( ).

Definition at line 122 of file igmcore_linear_algebra.f90.

real(DP),public igmcore_linear_algebra::vec_length

(

real(DP),dimension(3),intent(in)

vec

)

Gets the length of a vector.

Parameters:

[in]

vec

A vector.

Returns:

The length of the specified vector.

Definition at line 157 of file igmcore_linear_algebra.f90.

subroutine,public igmcore_linear_algebra::vec_normarize

(

real(DP),dimension(3),intent(inout)

vec

)

Normalizes the specified vector.

Parameters:

[in,out]

vec

The vector that will normarize.

Definition at line 185 of file igmcore_linear_algebra.f90.