Mathematics > Sparse Matrices

40 functions in MATLAB › Mathematics > Sparse Matrices.

`bicg`	Solves a square linear system with the biconjugate gradients method.
`bicgstab`	Solves a square linear system with the stabilized biconjugate gradients method.
`bicgstabl`	Solves a square linear system with the BiCGStab(l) method.
`cgs`	Solves a square linear system with the conjugate gradients squared method.
`colperm`	Column permutation that orders the columns by their number of nonzeros.
`etree`	Elimination tree of a sparse symmetric matrix.
`etreeplot`	Plots the elimination tree of a sparse matrix.
`full`	Converts a sparse matrix to ordinary full storage.
`gmres`	Solves a square linear system with the generalized minimal residual method.
`gplot`	Draws a graph from its adjacency matrix and node coordinates.
`ichol`	Incomplete Cholesky factorization of a sparse symmetric positive definite matrix.
`ilu`	Incomplete LU factorization of a sparse matrix.
`lsqr`	Solves a least-squares or linear system iteratively.
`minres`	Solves a symmetric linear system with the minimum residual method.
`nnz`	Number of nonzero elements.
`nonzeros`	Column vector with the nonzero elements of an array.
`nzmax`	Amount of storage allocated for nonzero elements.
`pcg`	Solves a symmetric positive definite linear system with preconditioned conjugate gradients.
`qmr`	Solves a square linear system with the quasi-minimal residual method.
`spalloc`	Creates an empty sparse matrix with room reserved for nonzeros.
`sparse`	Creates a sparse matrix, or converts a full matrix to sparse form.
`spaugment`	Augmented matrix of the least-squares problem for a sparse matrix.
`spconvert`	Converts a list of (row, column, value) entries to a sparse matrix.
`spdiags`	Extracts diagonals from a matrix, or builds a matrix from diagonals.
`speye`	Sparse identity matrix.
`spfun`	Applies a function to the nonzero elements of a sparse matrix.
`spones`	Replaces the nonzero elements of a matrix by ones.
`spparms`	Sets or reads parameters of the sparse matrix routines.
`sprand`	Sparse matrix with random entries uniformly distributed between 0 and 1.
`sprandn`	Sparse matrix with normally distributed random entries.
`sprandsym`	Sparse symmetric random matrix.
`sprank`	Structural rank of a sparse matrix.
`spy`	Visualizes the sparsity pattern of a matrix.
`symbfact`	Symbolic factorization analysis of a sparse matrix.
`symmlq`	Solves a symmetric linear system with the symmetric LQ method.
`symrcm`	Reverse Cuthill-McKee ordering that reduces the bandwidth of a sparse matrix.
`tfqmr`	Solves a square linear system with the transpose-free quasi-minimal residual method.
`treelayout`	Computes node coordinates for drawing a tree.
`treeplot`	Draws a tree from its parent vector.
`unmesh`	Converts a list of mesh edges to a graph adjacency matrix and node coordinates.