Order of entry multiplication for matrix multiplication
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Documentation
- Dominant language
- Macaulay2
- Stars
- 435
- Forks
- 297
- Avg merge
- 4d 20h
- Merged PRs (30d)
- 11
Description
I'm not sure if there is a reason for this, but it appears that M2 multiplies the entries of matrices in the `opposite ring'. This is undetectable for commutative rings, but gives unexpected results in the skew-commutative case.
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First steps
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Research direction
No file, test, or entry point is named. Start by reproducing matrix multiplication over a skew-commutative or noncommutative ring, then locate the matrix multiplication implementation and determine the intended entry order. Done means the behavior matches that order and a regression test covers the case.
Written by the indexing model from the issue text.
Assessment
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100