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Fix bug NullspaceModQ that could lead to wrong results; also added support for arbitrary moduli, and renamed it to NullspaceModN #3690

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merged 1 commit into from
Oct 10, 2019

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Fixes #3614 and adds a manual example demonstrating the fixed behavior.
The old name NullspaceModQ is kept as an alias for backwards compatibility.
Also updated the documentation for NullspaceModN and BasisNullspaceModN.

Should be OK to backport to stable-4.11

Fixes gap-system#3614 and adds a manual example demonstrating the fixed behavior.
The old name NullspaceModQ is kept as an alias for backwards compatibility.
Also updated the documentation for NullspaceModN and BasisNullspaceModN.
@fingolfin fingolfin added kind: bug Issues describing general bugs, and PRs fixing them kind: bug: wrong result Issues describing bugs that result in mathematically or otherwise wrong results, and PRs fixing them release notes: to be added PRs introducing changes that should be (but have not yet been) mentioned in the release notes backport-to-4.11 labels Oct 6, 2019
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Coverage increased (+0.004%) to 84.482% when pulling 6155776 on fingolfin:mh/NullspaceModN into 8492717 on gap-system:master.

@fingolfin fingolfin requested a review from hulpke October 9, 2019 07:37
@fingolfin fingolfin merged commit 2c596b3 into gap-system:master Oct 10, 2019
@fingolfin fingolfin deleted the mh/NullspaceModN branch October 10, 2019 07:36
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Backported to stable-4.11 in a1e58ee

@fingolfin fingolfin changed the title Fix NullspaceModQ and renamed it to NullspaceModN Fix a bug NullspaceModQ that could lead to wrong results, added support for arbitrary moduli, and renamed it to NullspaceModN Nov 28, 2019
@fingolfin fingolfin added the kind: enhancement Label for issues suggesting enhancements; and for pull requests implementing enhancements label Dec 5, 2019
@fingolfin fingolfin changed the title Fix a bug NullspaceModQ that could lead to wrong results, added support for arbitrary moduli, and renamed it to NullspaceModN Fix a bug NullspaceModQ that could lead to wrong results; also added support for arbitrary moduli, and renamed it to NullspaceModN Dec 5, 2019
@fingolfin fingolfin changed the title Fix a bug NullspaceModQ that could lead to wrong results; also added support for arbitrary moduli, and renamed it to NullspaceModN Fix bug NullspaceModQ that could lead to wrong results; also added support for arbitrary moduli, and renamed it to NullspaceModN Dec 5, 2019
@fingolfin fingolfin added release notes: added PRs introducing changes that have since been mentioned in the release notes and removed release notes: to be added PRs introducing changes that should be (but have not yet been) mentioned in the release notes labels Dec 5, 2019
@olexandr-konovalov olexandr-konovalov added this to the GAP 4.11.0 milestone Feb 15, 2020
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backport-to-4.11-DONE kind: bug: wrong result Issues describing bugs that result in mathematically or otherwise wrong results, and PRs fixing them kind: bug Issues describing general bugs, and PRs fixing them kind: enhancement Label for issues suggesting enhancements; and for pull requests implementing enhancements release notes: added PRs introducing changes that have since been mentioned in the release notes
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Bug in NullspaceModQ
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