ru.sscc.matrix
Class TransposedMatrix

java.lang.Object
  |
  +--ru.sscc.matrix.TransposedMatrix

public final class TransposedMatrix

extends java.lang.Object

implements RealAlgebraicMatrix

The decorator class treating an algebraic matrix as the transposed matrix.

See Also:

Serialized Form

Constructor Summary

TransposedMatrix(RealAlgebraicMatrix matrix)
Constructs logically transposed matrix upon an algebraic matrix.

Method Summary

int	columnsNumber() Returns the number of columns in the transposed matrix.
RealAlgebraicMatrix	getOriginalMatrix() Returns the original matrix, the instance was constructed on.
void	multiply(RealVector source, RealVector target) Multiplies this matrix by a vector: the same as multiplyT() for underlying matrix.
void	multiplyT(RealVector source, RealVector target) Multiplies the transposed matrix by a vector: the same as multiply() for underlying matrix.
double	relativeAccuracy() Returns the relative accuracy for underlying matrix.
int	rowsNumber() Returns the number of rows in the transposed matrix.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

TransposedMatrix

public TransposedMatrix(RealAlgebraicMatrix matrix)

Constructs logically transposed matrix upon an algebraic matrix.

Method Detail

getOriginalMatrix

public RealAlgebraicMatrix getOriginalMatrix()

Returns the original matrix, the instance was constructed on.

rowsNumber

public int rowsNumber()

Returns the number of rows in the transposed matrix.

Tags copied from interface: Matrix

Returns:

a number of matrix rows.

columnsNumber

public int columnsNumber()

Returns the number of columns in the transposed matrix.

Tags copied from interface: Matrix

Returns:

a number of matrix columns.

relativeAccuracy

public double relativeAccuracy()

Returns the relative accuracy for underlying matrix.

Specified by:

relativeAccuracy in interface RealAlgebraicMatrix

multiply

public void multiply(RealVector source,
                     RealVector target)

Multiplies this matrix by a vector: the same as multiplyT() for underlying matrix.

Specified by:

multiply in interface RealAlgebraicMatrix

Tags copied from interface: RealAlgebraicMatrix

Parameters:

source - a source vector to multiply

target - a target vector to write the result

Throws:

java.lang.IllegalStateException - is thrown when the matrix isn't algebraic

multiplyT

public void multiplyT(RealVector source,
                      RealVector target)

Multiplies the transposed matrix by a vector: the same as multiply() for underlying matrix.

Specified by:

multiplyT in interface RealAlgebraicMatrix

Tags copied from interface: RealAlgebraicMatrix

Parameters:

source - a source vector to multiply

target - a target vector to write the result

Throws:

java.lang.IllegalStateException - is thrown when the matrix isn't algebraic