javax.robotics.vecmath
Class DMatrix

java.lang.Object
  javax.vecmath.GVector
      javax.robotics.vecmath.RVector
          javax.robotics.vecmath.DMatrix

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable

public class DMatrix
extends RVector

Diagonal Matrix, a double precision, general, dynamically-resizable, one-dimensional vector class. Index numbering begins with zero.

Since:

1.0.2

Version:

5/10/2005

Author:

Carmine Lia

See Also:

Serialized Form

Constructor Summary

DMatrix(DMatrix diag)
Constructs a new diagonal matrix from another diagonal matrix.

DMatrix(double... diag)
Constructs a new diagonal matrix from an array.

DMatrix(int size)
Constructs a zero diagonal matrix size by size

DMatrix(Matrix diag)
Constructs a new diagonal matrix from a diagonal of input matrix.

DMatrix(RVector diag)
Constructs a new diagonal matrix from a vector.

Method Summary

void	get(Matrix M) Gets this diagonal matrix as generic matrix.
void	invert() Invert diagonal matrix in place.
Matrix	mul(Matrix M) Sets the value of return matrix to the result of multiplying this matrix with matrix M (this * M).

Methods inherited from class javax.robotics.vecmath.RVector

add, addScale, append, append, append, get, mul, printf, printf, printf, printf, setValues, split, split, toString, toString

Methods inherited from class javax.vecmath.GVector

add, add, angle, clone, dot, epsilonEquals, equals, equals, getElement, getSize, hashCode, interpolate, interpolate, interpolate, interpolate, LUDBackSolve, mul, mul, negate, norm, normalize, normalize, normSquared, scale, scale, scaleAdd, set, set, set, set, set, set, set, setElement, setSize, sub, sub, SVDBackSolve, zero

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DMatrix

public DMatrix(int size)

Constructs a zero diagonal matrix size by size

Parameters:

size - the dimension of matrix

DMatrix

public DMatrix(double... diag)

Constructs a new diagonal matrix from an array.

Parameters:

diag - the input array.

DMatrix

public DMatrix(RVector diag)

Constructs a new diagonal matrix from a vector.

Parameters:

diag - the input vector.

DMatrix

public DMatrix(DMatrix diag)

Constructs a new diagonal matrix from another diagonal matrix.

Parameters:

diag - the input diagonal matrix.

DMatrix

public DMatrix(Matrix diag)

Constructs a new diagonal matrix from a diagonal of input matrix.

Parameters:

diag - the input matrix.

Method Detail

get

public void get(Matrix M)

Gets this diagonal matrix as generic matrix.

Parameters:

M - the matrix to be copied

mul

public Matrix mul(Matrix M)

Sets the value of return matrix to the result of multiplying this matrix with matrix M (this * M).

Parameters:

M - the generic input matrix

Returns:

the product matrix

invert

public void invert()

Invert diagonal matrix in place.