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fix reporting nonconvergence as divergence for non-Cauchy termination#754

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patrick-kidger merged 2 commits into
patrick-kidger:mainfrom
jpbrodrick89:jpb/noncauchy-fix
May 13, 2026
Merged

fix reporting nonconvergence as divergence for non-Cauchy termination#754
patrick-kidger merged 2 commits into
patrick-kidger:mainfrom
jpbrodrick89:jpb/noncauchy-fix

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@jpbrodrick89
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Fixes patrick-kidger/optimistix#221, also see patrick-kidger/optimistix#230. Note the step counts only reduce from 845 to 242 rather than 238 simply because at_least_two is now doing what it should.

Note that if we manage to progress patrick-kidger/optimistix#214 at some stage (quite an undertaking) we should be able to remove the terminate copy paste issue between VeryChord and AbstractNewtonChord.

@patrick-kidger patrick-kidger merged commit 9094d03 into patrick-kidger:main May 13, 2026
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LGTM! :)

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Number of steps increased in diffrax using optimistix 0.1.0 compared to 0.0.11

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