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vern9 integrator - #784

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jurasic-pf wants to merge 2 commits into
patrick-kidger:mainfrom
jurasic-pf:vern9
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jurasic-pf wants to merge 2 commits into
patrick-kidger:mainfrom
jurasic-pf:vern9

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@jurasic-pf

@jurasic-pf jurasic-pf commented Oct 7, 2026 •

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A high order integrator for smooth problems. Allows to take large steps, at 9th order accuracy (often even 10th in practice), and has 3rd order accuracy for the interpolant between them.

https://www.sfu.ca/~jverner/

Good for expensive but smooth integrands, as it uses fewer evaluations while stable and accurate over long durations
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@jurasic-pf jurasic-pf changed the title vern9 integrator added vern9 integrator Oct 7, 2026
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