Sparse Matrix
~~~~~~~~~~~~~


+ `Sparse Decompositions`_

    + `ludel`_ utility function used with lufact
    + `lufact`_ sparse lu factorization
    + `luget`_ extraction of sparse LU factors
    + `lusolve`_ sparse linear system solver
    + `spchol`_ sparse cholesky factorization

+ `Linear Equations (Iterative Solvers)`_

    + `gmres`_ Generalized Minimum RESidual method
    + `pcg`_ precondioned conjugate gradient
    + `qmr`_ quasi minimal resiqual method with preconditioning

+ `Sparse Matrix Manipulation`_

    + `issparse`_ determine whether input is sparse
    + `nnz`_ number of non zero entries in a matrix
    + `speye`_ sparse identity matrix
    + `spones`_ sparse matrix
    + `sprand`_ sparse random matrix
    + `spzeros`_ sparse zero matrix

+ `Sparse Matrix Conversion`_

    + `adj2sp`_ converts adjacency form into sparse matrix.
    + `full`_ sparse to full matrix conversion
    + `mtlb_sparse`_ convert sparse matrix
    + `sp2adj`_ converts sparse matrix into adjacency form
    + `sparse`_ sparse matrix definition
    + `spcompack`_ converts a compressed adjacency representation
    + `spget`_ retrieves entries of sparse matrix

+ `chfact`_ sparse Cholesky factorization
+ `chsolve`_ sparse Cholesky solver
+ `ordmmd`_ Compute multiple minimum degree ordering


.. _nnz: nnz.html
.. _spzeros: spzeros.html
.. _mtlb_sparse: mtlb_sparse.html
.. _sparse: sparse.html
.. _issparse: issparse.html
.. _chsolve: chsolve.html
.. _speye: speye.html
.. _lusolve: lusolve.html
.. _Sparse Decompositions: section_4d4d2115c3a70a6eb2389955a627561e.html
.. _sp2adj: sp2adj.html
.. _full: full.html
.. _sprand: sprand.html
.. _adj2sp: adj2sp.html
.. _ludel: ludel.html
.. _spget: spget.html
.. _pcg: pcg.html
.. _chfact: chfact.html
.. _Sparse Matrix Manipulation: section_f2086a67391fa71b3516528e41f9ea69.html
.. _ordmmd: ordmmd.html
.. _qmr: qmr.html
.. _lufact: lufact.html
.. _Linear Equations (Iterative Solvers): section_b520c4651a99df8a19026ce42ae1293a.html
.. _spcompack: spcompack.html
.. _Sparse Matrix Conversion: section_2360515db941150ca972e1ea099d9004.html
.. _spones: spones.html
.. _gmres: gmres.html
.. _spchol: spchol.html
.. _luget: luget.html