A simplicial direct Cholesky (LDLT) factorization and solver based on Cholmod. More...

#include <CholmodSupport.h>

Inheritance diagram for Eigen::CholmodSimplicialLDLT< _MatrixType, _UpLo >:

Public Types
typedef _MatrixType	MatrixType
Public Member Functions
	CholmodSimplicialLDLT ()
	CholmodSimplicialLDLT (const MatrixType &matrix)
	~CholmodSimplicialLDLT ()
Protected Member Functions
void	init ()
Private Types
typedef CholmodBase < _MatrixType, _UpLo, CholmodSimplicialLDLT >	Base

Detailed Description

template<typename _MatrixType, int _UpLo = Lower>
class Eigen::CholmodSimplicialLDLT< _MatrixType, _UpLo >

A simplicial direct Cholesky (LDLT) factorization and solver based on Cholmod.

This class allows to solve for A.X = B sparse linear problems via a simplicial LDL^T Cholesky factorization using the Cholmod library. This simplicial variant is equivalent to Eigen's built-in SimplicialLDLT class. Thefore, it has little practical interest. The sparse matrix A must be selfajoint and positive definite. The vectors or matrices X and B can be either dense or sparse.

Template Parameters:

_MatrixType	the type of the sparse matrix A, it must be a SparseMatrix<>
_UpLo	the triangular part that will be used for the computations. It can be Lower or Upper. Default is Lower.

This class supports all kind of SparseMatrix<>: row or column major; upper, lower, or both; compressed or non compressed.

See also:: TutorialSparseDirectSolvers, class CholmodSupernodalLLT, class SimplicialLDLT

Definition at line 428 of file CholmodSupport.h.