drasys.or.linear.algebra
Interface DecompositionI

All Known Subinterfaces:

LUDecompositionI, SVDecompositionI

public interface DecompositionI

The interface used by all algorithms to access decomposition algorithms.

See Also:

LUDecompositionI, SVDecompositionI

Method Summary
DenseMatrix	computeInverse()           Computes the inverse of the original matrix from the components.
MatrixI	computeInverse(MatrixI results)           Computes the inverse of the original matrix from the components.
void	decompose(MatrixI a)           Decompose matrix into components.
DenseVector	solveEquations(VectorI rightHandSides)           Use the components to solve the simultaneous equations in the original matrix.
VectorI	solveEquations(VectorI rightHandSides, VectorI results)           Use the components to solve the simultaneous equations in the original matrix.

 

Method Detail

decompose

public void decompose(MatrixI a)
               throws AlgebraException,
                      SingularException

Decompose matrix into components.

solveEquations

public DenseVector solveEquations(VectorI rightHandSides)
                           throws AlgebraException

Use the components to solve the simultaneous equations in the original matrix.

Returns:

the solution vector.

solveEquations

public VectorI solveEquations(VectorI rightHandSides,
                              VectorI results)
                       throws AlgebraException

Use the components to solve the simultaneous equations in the original matrix.

Returns:

the solution vector.

computeInverse

public DenseMatrix computeInverse()
                           throws AlgebraException

Computes the inverse of the original matrix from the components.

Returns:

the inverse matrix.

computeInverse

public MatrixI computeInverse(MatrixI results)
                       throws AlgebraException

Computes the inverse of the original matrix from the components.

Returns:

the inverse matrix.