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SpECTRE
v2026.04.01
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Performs a mutation to a spin-weighted spherical harmonic derivative value from the numerical coordinate (the spin-weighted derivative at fixed \(y\)) to the Bondi coordinates (the spin-weighted derivative at fixed \(r\)), inplace to the requested tag. More...
Performs a mutation to a spin-weighted spherical harmonic derivative value from the numerical coordinate (the spin-weighted derivative at fixed \(y\)) to the Bondi coordinates (the spin-weighted derivative at fixed \(r\)), inplace to the requested tag.
This should be performed only once for each derivative evaluation for each tag, as a repeated inplace evaluation will compound and result in incorrect values in the DataBox. This is compatible with acting as a mutation in db::mutate_apply.