Web page matrix - PowerPoint PPT Presentation

Sparse Matrices

Sparse Matrices. sparse … many elements are zero dense … few elements are zero. Example Of Sparse Matrices. diagonal tridiagonal lower triangular (?) These are structured sparse matrices. May be mapped into a 1D array so that a mapping function can be used to locate an element.

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Sparse Matrices

Sparse Matrices. Matrix  table of values. 0 0 3 0 4 0 0 5 7 0 0 0 0 0 0 0 2 6 0 0. Row 2. Column 4. Sparse Matrices. Matrix  table of values. 4 x 5 matrix 4 rows 5 columns 20 elements 6 nonzero elements. Sparse Matrices.

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