Eigen::CholmodSimplicialLDLT< _MatrixType, _UpLo > Class Template Reference

#include <Eigen/src/CholmodSupport/CholmodSupport.h>

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. Therefore, it has little practical interest. The sparse matrix A must be selfadjoint 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 follows the sparse solver concept .

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

Warning

Only double precision real and complex scalar types are supported by Cholmod.

See also

Sparse solver concept, class CholmodSupernodalLLT, class SimplicialLDLT

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

Additional Inherited Members
Public Member Functions inherited from Eigen::CholmodBase< _MatrixType, Lower, CholmodSimplicialLDLT< _MatrixType, Lower > >
void	analyzePattern (const MatrixType &matrix)
cholmod_common &	cholmod ()
CholmodSimplicialLDLT< _MatrixType, Lower > &	compute (const MatrixType &matrix)
Scalar	determinant () const
void	factorize (const MatrixType &matrix)
ComputationInfo	info () const
	Reports whether previous computation was successful.
Scalar	logDeterminant () const
CholmodSimplicialLDLT< _MatrixType, Lower > &	setShift (const RealScalar &offset)
Public Member Functions inherited from Eigen::SparseSolverBase< CholmodSimplicialLDLT< _MatrixType, Lower > >
const Solve< CholmodSimplicialLDLT< _MatrixType, Lower >, Rhs >	solve (const MatrixBase< Rhs > &b) const
const Solve< CholmodSimplicialLDLT< _MatrixType, Lower >, Rhs >	solve (const SparseMatrixBase< Rhs > &b) const
	SparseSolverBase ()

---

The documentation for this class was generated from the following file:

• /builds/libeigen/eigen/Eigen/src/CholmodSupport/CholmodSupport.h