concatenation of homogeneous matrices with degrees
Open
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Core
- Dominant language
- Macaulay2
- Stars
- 435
- Forks
- 297
- Avg merge
- 4d 20h
- Merged PRs (30d)
- 11
Description
Do it better:
i1 : R=QQ[x];
i2 : f = matrix {{x}}; g = x * id_(R^1);
1 1
o2 : Matrix R <--- R
1 1
o3 : Matrix R <--- R
i4 : isHomogeneous f, isHomogeneous g
o4 = (true, true)
o4 : Sequence
i5 : f|g
o5 = | x x |
1 2
o5 : Matrix R <--- R
i6 : isHomogeneous oo
o6 = false
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the Macaulay2 session showing concatenation with f|g changes isHomogeneous from true to false. The issue names no source file or test, so locate the matrix concatenation entry point and existing homogeneity tests first; done should establish and verify the intended degree behavior for concatenated homogeneous matrices.
Written by the indexing model from the issue text.
Assessment
- Domain
- backend
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100