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See Release Notes
Long Term Support Release
- Bug fixes for general core bugs in 4.1.x will end 13 November 2023 (12 months).
- Bug fixes for security issues in 4.1.x will end 10 November 2025 (36 months).
- PHP version: minimum PHP 7.4.0 Note: minimum PHP version has increased since Moodle 4.0. PHP 8.0.x is supported too.
(no description)
| File Size: | 299 lines (7 kb) |
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Defines 1 class
LUDecomposition:: (9 methods):
__construct()
getL()
getU()
getPivot()
getDoublePivot()
isNonsingular()
det()
solve()
getSubMatrix()
Class: LUDecomposition - X-Ref
| __construct(Matrix $A) X-Ref |
| Constructs Structure to access L, U and piv. param: Matrix $A Rectangular matrix |
| getL() X-Ref |
| Get lower triangular factor. return: Matrix Lower triangular factor |
| getU() X-Ref |
| Get upper triangular factor. return: Matrix Upper triangular factor |
| getPivot() X-Ref |
| Return pivot permutation vector. return: array Pivot vector |
| getDoublePivot() X-Ref |
| Alias for getPivot |
| isNonsingular() X-Ref |
| Is the matrix nonsingular? return: bool true if U, and hence A, is nonsingular. |
| det() X-Ref |
| No description |
| solve(Matrix $B) X-Ref |
| Solve A*X = B param: Matrix $B A Matrix with as many rows as A and any number of columns. return: array X so that L*U*X = B(piv,:) |
| getSubMatrix(array $matrix, array $RL, int $j0, int $jF) X-Ref |
| No description |
