UMFPACK Namespace Reference

Linear solver for sparse systems. More...

Classes
class	Sys
Functions
String	ErrorMsg (int info)
void	Solve (Sparse::Matrix< double, int > const &A, Vec_t const &B, Vec_t &X)
void	Solve (Sparse::Triplet< double, int > const &A, Vec_t const &B, Vec_t &X)
double	Det (Sparse::Matrix< double, int > const &A)

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Detailed Description

Linear solver for sparse systems.

Unsymmetric multifrontal sparse LU factorization package. UMFPACK is a set of routines for solving unsymmetric sparse linear systems, Ax=b, using the Unsymmetric MultiFrontal method. See Tim Davis' web page.

Examples:

• tumfpack.cpp Test UMFPACK solver

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Function Documentation

double UMFPACK::Det

(

Sparse::Matrix< double, int > const &

A

)

[inline]

String UMFPACK::ErrorMsg

(

int

info

)

UMFPACK internal error message.

Parameters:

info	UMFPACK internal error code

void UMFPACK::Solve	(	Sparse::Matrix< double, int > const &	A,
		Vec_t const &	B,
		Vec_t &	X
	)		[inline]

Solves .

Parameters:

A	Sparse matrix
B	Right-hand side vector
X	Result

void UMFPACK::Solve	(	Sparse::Triplet< double, int > const &	A,
		Vec_t const &	B,
		Vec_t &	X
	)		[inline]