MATLAB Mathematics - SERC - Index of

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6 Sparse Matrices Function Summary The sparse matrix functions are located in the MATLAB sparfun directory. Function Summary Category Function Description Elementary sparse matrices Full to sparse conversion Working with sparse matrices speye sprand sprandn sprandsym spdiags sparse full find spconvert nnz nonzeros nzmax spones spalloc issparse spfun spy Sparse identity matrix. Sparse uniformly distributed random matrix. Sparse normally distributed random matrix. Sparse random symmetric matrix. Sparse matrix formed from diagonals. Create sparse matrix. Convert sparse matrix to full matrix. Find indices of nonzero elements. Import from sparse matrix external format. Number of nonzero matrix elements. Nonzero matrix elements. Amount of storage allocated for nonzero matrix elements. Replace nonzero sparse matrix elements with ones. Allocate space for sparse matrix. True for sparse matrix. Apply function to nonzero matrix elements. Visualize sparsity pattern. 6-2
Function Summary Function Summary (Continued) Category Function Description Graph theory gplot Plot graph, as in “graph theory.” Reordering algorithms etree etreeplot treelayout treeplot colamd symamd symrcm colperm randperm dmperm Elimination tree. Plot elimination tree. Lay out tree or forest. Plot picture of tree. Column approximate minimum degree permutation. Symmetric approximate minimum degree permutation. Symmetric reverse Cuthill-McKee permutation. Column permutation. Random permutation. Dulmage-Mendelsohn permutation. Linear algebra eigs A few eigenvalues. Linear equations (iterative methods) svds luinc cholinc normest condest sprank bicg bicgstab cgs A few singular values. Incomplete LU factorization. Incomplete Cholesky factorization. Estimate the matrix 2-norm. 1-norm condition number estimate. Structural rank. BiConjugate Gradients Method. BiConjugate Gradients Stabilized Method. Conjugate Gradients Squared Method. 6-3
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MATLAB® The Language of Technical
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Revision History June 2004 First pr
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2 Polynomials and Interpolation Pol
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Introduction to Initial Value ODE P
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1 Matrices and Linear Algebra Funct
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Index LU factorization 6-30 minimum
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Index twobvp demo 5-63 two-dimensio
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