Opened 15 years ago
Closed 15 years ago
#1732 closed enhancement (fixed)
[with patch, with positive review] block matrix construction
| Reported by: | robertwb | Owned by: | robertwb |
|---|---|---|---|
| Priority: | major | Milestone: | sage-2.10 |
| Component: | linear algebra | Keywords: | |
| Cc: | dfdeshom@… | Merged in: | |
| Authors: | Reviewers: | ||
| Report Upstream: | N/A | Work issues: | |
| Branch: | Commit: | ||
| Dependencies: | Stopgaps: |
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Description
Is there a way to construct block matrices in SAGE? Not just the "block_sum", "augment" and "stack" functions. As an example, let A, B, C, D be matrices and i want to construct a matrix like E=[[A,B],[C,D]] Such a feature would be very nice. -vgermrk-
Attachments (3)
Change History (8)
Changed 15 years ago by
| Attachment: | block_sum.diff added |
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comment:1 Changed 15 years ago by
| Summary: | block matrix construction → [with patch] block matrix construction |
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Changed 15 years ago by
| Attachment: | 1732-block-matrix.diff added |
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comment:2 Changed 15 years ago by
comment:3 Changed 15 years ago by
| Owner: | changed from was to robertwb |
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| Status: | new → assigned |
Changed 15 years ago by
| Attachment: | 1732-block-matrix-mem.diff added |
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more memory friendly for constant entries
comment:4 Changed 15 years ago by
| Cc: | dfdeshom@… added |
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| Summary: | [with patch] block matrix construction → [with patch, with positive review] block matrix construction |
Just wanted to point out that this patch works great for me, both for block diagonal matrices and for creating block matrices from lists.
comment:5 Changed 15 years ago by
| Resolution: | → fixed |
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| Status: | assigned → closed |
I merged all three patches into Sage 2.10.alpha3
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Much expanded functionality due to discussion at http://www.mail-archive.com/sage-devel@googlegroups.com/msg08958.html
See the docstrings in the patch for many examples.