Eigen
3.4.90 (git rev a4098ac676528a83cfb73d4d26ce1b42ec05f47c)

This module provides an interface to the KLU library which is part of the suitesparse package. It provides the following factorization class:
In order to use this module, the klu and btf headers must be accessible from the include paths, and your binary must be linked to the klu library and its dependencies. The dependencies depend on how umfpack has been compiled. For a cmake based project, you can use our FindKLU.cmake module to help you in this task.
Functions  
int  Eigen::klu_solve (klu_symbolic *Symbolic, klu_numeric *Numeric, Index ldim, Index nrhs, double B[], klu_common *Common, double) 
A sparse LU factorization and solver based on KLU. More...  

inline 
A sparse LU factorization and solver based on KLU.
This class allows to solve for A.X = B sparse linear problems via a LU factorization using the KLU library. The sparse matrix A must be squared and full rank. The vectors or matrices X and B can be either dense or sparse.
MatrixType_  the type of the sparse matrix A, it must be a SparseMatrix<> 
This class follows the sparse solver concept .