Support for `Diagonal` in `orthnull`#144

Draft

kshyatt wants to merge 8 commits intomainfrom

Commits on Mar 3, 2026

Use TestSuite for orthnull
kshyatt
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Don't test nonworking stuff
kshyatt
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Support GenericFloats too

Katharine Hyatt
authored and
kshyatt
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Try to fix testinferred with algs

Katharine Hyatt
authored and
kshyatt
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Split up tests and address other comments
kshyatt
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Remove extraneous lines
kshyatt
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Support orthnull for Diagonal
kshyatt
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Try collecting Diagonals
kshyatt
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