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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/DataBox/Prefixes.hpp" 9 : #include "DataStructures/DataBox/Tag.hpp" 10 : #include "DataStructures/DataVector.hpp" 11 : #include "DataStructures/Tensor/Tensor.hpp" 12 : #include "Evolution/Systems/GeneralizedHarmonic/Tags.hpp" 13 : #include "NumericalAlgorithms/LinearOperators/PartialDerivatives.hpp" 14 : #include "PointwiseFunctions/GeneralRelativity/Tags.hpp" 15 : #include "Utilities/ContainerHelpers.hpp" 16 : #include "Utilities/Gsl.hpp" 17 : #include "Utilities/TMPL.hpp" 18 : 19 : // IWYU pragma: no_forward_declare Tags::deriv 20 : 21 : /// \cond 22 : namespace domain { 23 : namespace Tags { 24 : template <size_t Dim, typename Frame> 25 : struct Coordinates; 26 : } // namespace Tags 27 : } // namespace domain 28 : class DataVector; 29 : template <typename X, typename Symm, typename IndexList> 30 : class Tensor; 31 : /// \endcond 32 : 33 : namespace gh { 34 : /// @{ 35 : /*! 36 : * \ingroup GeneralRelativityGroup 37 : * \brief Computes spacetime derivatives of the determinant of spatial metric, 38 : * using the generalized harmonic variables, spatial metric, and its 39 : * time derivative. 40 : * 41 : * \details Using the relation 42 : * \f$ \partial_a \gamma = \gamma \gamma^{jk} \partial_a \gamma_{jk} \f$ 43 : */ 44 : template <typename DataType, size_t SpatialDim, typename Frame> 45 1 : void spacetime_deriv_of_det_spatial_metric( 46 : gsl::not_null<tnsr::a<DataType, SpatialDim, Frame>*> d4_det_spatial_metric, 47 : const Scalar<DataType>& sqrt_det_spatial_metric, 48 : const tnsr::II<DataType, SpatialDim, Frame>& inverse_spatial_metric, 49 : const tnsr::ii<DataType, SpatialDim, Frame>& dt_spatial_metric, 50 : const tnsr::iaa<DataType, SpatialDim, Frame>& phi); 51 : 52 : template <typename DataType, size_t SpatialDim, typename Frame> 53 1 : tnsr::a<DataType, SpatialDim, Frame> spacetime_deriv_of_det_spatial_metric( 54 : const Scalar<DataType>& sqrt_det_spatial_metric, 55 : const tnsr::II<DataType, SpatialDim, Frame>& inverse_spatial_metric, 56 : const tnsr::ii<DataType, SpatialDim, Frame>& dt_spatial_metric, 57 : const tnsr::iaa<DataType, SpatialDim, Frame>& phi); 58 : /// @} 59 : } // namespace gh