PetscDSSetExactSolutionTimeDerivative#
Set the pointwise time derivative of the exact solution function for a given test field
Synopsis#
#include "petscds.h" 
PetscErrorCode PetscDSSetExactSolutionTimeDerivative(PetscDS prob, PetscInt f, PetscErrorCode (*sol)(PetscInt dim, PetscReal t, const PetscReal x[], PetscInt Nc, PetscScalar u[], void *ctx), void *ctx)
Not Collective
Input Parameters#
- prob - The - PetscDS
- f - The test field number 
- sol - time derivative of the solution function for the test fields 
- ctx - time derivative of the solution context or - NULL
Calling sequence of sol#
- dim - the spatial dimension 
- t - current time 
- x - coordinates of the current point 
- Nc - the number of field components 
- u - the solution field evaluated at the current point 
- ctx - a user context 
See Also#
PetscDS, PetscDSGetExactSolutionTimeDerivative(), PetscDSSetExactSolution()
Level#
intermediate
Location#
Examples#
src/ts/tutorials/ex77.c
src/ts/tutorials/ex76.c
src/ts/tutorials/ex53.c
src/ts/tutorials/ex45.c
Index of all DT routines
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