Structually non-singular matrices are supported using the maximum product matching only. For the symmetric case, the user must only supply the lower triangle and, if a scaling is computed, it will be a symmetric scaling with the same property as in the unsymmetric case. For the rectangular case, a row and column permutation are returned so that the user can permute the matching to the diagonal and identify the rows in the structurally nonsingular block. ![]() One way to construct permutation matrices is to permute the rows (or. In this Fortran 95 version, there are added facilities from the original MC64 code for working on rectangular and symmetric matrices. In the same LiveScript or the MATLAB command window, generate a 5 x 5 matrix A with. Array Functions MATLAB provides the following functions to sort, rotate, permute, reshape, or shift array contents. Given a sparse unsymmetric or rectangular matrix \(\mathbf \exp (u _i v _j ).\] HSL_MC64: Permute and scale a sparse unsymmetric or rectangular matrix to put large entries on the diagonal ![]() ![]() About the HSL Mathematical Software Library
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