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