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Mantis - ALGLIB
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 435 | Linear algebra | feature | have not tried | 2012-01-17 11:31 | 2012-01-17 11:31 |
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| Reporter: | SergeyB | Platform: | |||
| Assigned To: | Leo | OS: | |||
| Priority: | normal | OS Version: | |||
| Status: | resolved | Product Version: | |||
| Product Build: | Resolution: | implemented | |||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | 3.5.0 | ||
| Programming language: | Unspecified | ||||
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| Summary: | 0000435: IMPLEMENTED: sparse LSQR solver | ||||
| Description: |
Sparse solver which works with matrices represented by SparseMatrix structure and can solve: * square non-symmetric non-degenerate problems * non-square non-degenerate problems (least squares solution is returned) This solvers avoid squaring of condition number when working with least squares problem. Thus, it is better suited for solution of least squares problems than CG on normal equations. However, algorithm should be used with caution on rank-deficient or ill conditioned problems. |
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| Issue History | |||||
| Date Modified | Username | Field | Change | ||
| 2012-01-17 11:31 | SergeyB | New Issue | |||
| 2012-01-17 11:31 | SergeyB | Status | new => assigned | ||
| 2012-01-17 11:31 | SergeyB | Assigned To | => Leo | ||
| 2012-01-17 11:31 | SergeyB | Programming language | => Unspecified | ||
| 2012-01-17 11:31 | SergeyB | Status | assigned => resolved | ||
| 2012-01-17 11:31 | SergeyB | Fixed in Version | => 3.5.0 | ||
| 2012-01-17 11:31 | SergeyB | Resolution | open => implemented | ||
| There are no notes attached to this issue. |