signsolversmodule Module Reference

A Module For Computing The Matrix Sign Function. More...

Functions/Subroutines
subroutine, public	signfunction (Mat1, SignMat, solver_parameters_in)
	Computes the matrix sign function. More...
subroutine, public	polardecomposition (Mat1, Umat, Hmat, solver_parameters_in)
	Computes the polar decomposition of a matrix Mat1 = U*H. More...

Detailed Description

A Module For Computing The Matrix Sign Function.

Function/Subroutine Documentation

polardecomposition()

subroutine, public signsolversmodule::polardecomposition	(	type(distributedsparsematrix_t), intent(in)	Mat1,
		type(distributedsparsematrix_t), intent(inout)	Umat,
		type(distributedsparsematrix_t), intent(inout), optional	Hmat,
		type(iterativesolverparameters_t), intent(in), optional	solver_parameters_in
	)

Computes the polar decomposition of a matrix Mat1 = U*H.

Parameters

[in]	Mat1	the input matrix.
[out]	Umat	the unitary polar factor.
[out]	Hmat	the hermitian matrix factor (optional).
[in]	solver_parameters_in	optional parameters for the routine.

signfunction()

subroutine, public signsolversmodule::signfunction	(	type(distributedsparsematrix_t), intent(in)	Mat1,
		type(distributedsparsematrix_t), intent(inout)	SignMat,
		type(iterativesolverparameters_t), intent(in), optional	solver_parameters_in
	)

Computes the matrix sign function.

Parameters

[in]	Mat1	the input matrix.
[out]	SignMat	the sign of Mat1.
[in]	solver_parameters_in	optional parameters for the routine.