Mercurial > octave-libgccjit
comparison test/ChangeLog @ 8964:f4f4d65faaa0
Implement sparse * diagonal and diagonal * sparse operations, double-prec only.
Date: Sun, 8 Mar 2009 16:28:18 -0400
These preserve sparsity, so eye(5) * sprand (5, 5, .2) is *sparse*
and not dense. This may affect people who use multiplication by
eye() rather than full().
The liboctave routines do *not* check if arguments are scalars in
disguise. There is a type problem with checking at that level. I
suspect we want diag * "sparse scalar" to stay diagonal, but we have
to return a sparse matrix at the liboctave. Rather than worrying
about that in liboctave, we cope with it when binding to Octave and
return the correct higher-level type.
The implementation is in Sparse-diag-op-defs.h rather than
Sparse-op-defs.h to limit recompilation. And the implementations
are templates rather than macros to produce better compiler errors
and debugging information.
author | Jason Riedy <jason@acm.org> |
---|---|
date | Mon, 09 Mar 2009 17:49:13 -0400 |
parents | 97c84c4c2247 |
children | 42aff15e059b |
comparison
equal
deleted
inserted
replaced
8963:d1eab3ddb02d | 8964:f4f4d65faaa0 |
---|---|
3 * build_sparse_tests.sh: Add LU tests to the rectangular tests. | 3 * build_sparse_tests.sh: Add LU tests to the rectangular tests. |
4 | 4 |
5 2009-03-10 Jason Riedy <jason@acm.org> | 5 2009-03-10 Jason Riedy <jason@acm.org> |
6 | 6 |
7 * test_diag_perm.m: Add a test for conversion to sparse form. | 7 * test_diag_perm.m: Add a test for conversion to sparse form. |
8 | |
9 2009-03-08 Jason Riedy <jason@acm.org> | |
10 | |
11 * test_diag_perm.m: Add tests for preserving sparse structure when scaling. | |
8 | 12 |
9 2009-02-25 John W. Eaton <jwe@octave.org> | 13 2009-02-25 John W. Eaton <jwe@octave.org> |
10 | 14 |
11 * build_sparse_tests.sh: Note that saving sparse matrices to MAT | 15 * build_sparse_tests.sh: Note that saving sparse matrices to MAT |
12 files fails when using 64-bit indexing. | 16 files fails when using 64-bit indexing. |