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Exact sbend returns NaN for certain beam/element input values #599

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cemitch99 opened this issue May 1, 2024 · 0 comments · May be fixed by #789
Open

Exact sbend returns NaN for certain beam/element input values #599

cemitch99 opened this issue May 1, 2024 · 0 comments · May be fixed by #789
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@cemitch99
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bug: affects latest release Bug also exists in latest release version bug Something isn't working component: elements Elements/external fields
Milestone
Sirepo (FY24/24 P...

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cemitch99 commented May 1, 2024 •
edited by ax3l
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The nonlinear map for the exact sbend element requires extracting a square root, which can yield NaN for certain initial values providing a negative radicand. An error flag or switch should be added to avoid this. Observed by @SchroederSa
@cemitch99 cemitch99 self-assigned this May 1, 2024
@ax3l ax3l added component: elements Elements/external fields bug Something isn't working bug: affects latest release Bug also exists in latest release version labels May 2, 2024
@cemitch99 cemitch99 linked a pull request Jan 8, 2025 that will close this issue
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bug: affects latest release Bug also exists in latest release version bug Something isn't working component: elements Elements/external fields
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Sirepo (FY24/24 Phase 1 SBIR)
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Address possible NaN in ExactSbend cemitch99/impactx
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