SpECTRE Documentation Coverage Report
Current view: top level - PointwiseFunctions/GeneralRelativity/GeneralizedHarmonic - SpacetimeDerivOfDetSpatialMetric.hpp Coverage Total Hit
Commit: 0d1d717af84a81fb1284a20c4013708fe85cc2f0 Lines: 66.7 % 3 2
Test Date: 2026-10-22 17:29:42
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            Line data    Source code
       1            0 : // Distributed under the MIT License.
       2              : // See LICENSE.txt for details.
       3              : 
       4              : #pragma once
       5              : 
       6              : #include <cstddef>
       7              : 
       8              : #include "DataStructures/Tensor/TypeAliases.hpp"
       9              : #include "Utilities/Gsl.hpp"
      10              : 
      11              : namespace gh {
      12              : /// @{
      13              : /*!
      14              :  * \ingroup GeneralRelativityGroup
      15              :  * \brief Computes spacetime derivatives of the determinant of spatial metric,
      16              :  *        using the generalized harmonic variables, spatial metric, and its
      17              :  *        time derivative.
      18              :  *
      19              :  * \details Using the relation
      20              :  * \f$ \partial_a \gamma = \gamma \gamma^{jk} \partial_a \gamma_{jk} \f$
      21              :  */
      22              : template <typename DataType, size_t SpatialDim, typename Frame>
      23            1 : void spacetime_deriv_of_det_spatial_metric(
      24              :     gsl::not_null<tnsr::a<DataType, SpatialDim, Frame>*> d4_det_spatial_metric,
      25              :     const Scalar<DataType>& sqrt_det_spatial_metric,
      26              :     const tnsr::II<DataType, SpatialDim, Frame>& inverse_spatial_metric,
      27              :     const tnsr::ii<DataType, SpatialDim, Frame>& dt_spatial_metric,
      28              :     const tnsr::iaa<DataType, SpatialDim, Frame>& phi);
      29              : 
      30              : template <typename DataType, size_t SpatialDim, typename Frame>
      31            1 : tnsr::a<DataType, SpatialDim, Frame> spacetime_deriv_of_det_spatial_metric(
      32              :     const Scalar<DataType>& sqrt_det_spatial_metric,
      33              :     const tnsr::II<DataType, SpatialDim, Frame>& inverse_spatial_metric,
      34              :     const tnsr::ii<DataType, SpatialDim, Frame>& dt_spatial_metric,
      35              :     const tnsr::iaa<DataType, SpatialDim, Frame>& phi);
      36              : /// @}
      37              : }  // namespace gh
        

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