petsc-3.9.4 2018-09-11
PetscFEGetTabulation
Tabulates the basis functions, and perhaps derivatives, at the points provided.
Synopsis
#include "petscfe.h"
PetscErrorCode PetscFEGetTabulation(PetscFE fem, PetscInt npoints, const PetscReal points[], PetscReal **B, PetscReal **D, PetscReal **H)
Not collective
Input Parameters
| fem | - The PetscFE object
|
| npoints | - The number of tabulation points
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| points | - The tabulation point coordinates
|
Output Parameters
| B | - The basis function values at tabulation points
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| D | - The basis function derivatives at tabulation points
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| H | - The basis function second derivatives at tabulation points
|
Note
B[(p*pdim + i)*Nc + c] is the value at point p for basis function i and component c
D[((p*pdim + i)*Nc + c)*dim + d] is the derivative value at point p for basis function i, component c, in direction d
H[(((p*pdim + i)*Nc + c)*dim + d)*dim + e] is the value at point p for basis function i, component c, in directions d and e
See Also
PetscFERestoreTabulation(), PetscFEGetDefaultTabulation()
Level
intermediate
Location
src/dm/dt/interface/dtfe.c
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages