PETSc version v3.15.4-900-g21e6d802fb
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PetscFEGetFaceTabulation

Returns the tabulation of the basis functions at the face quadrature points for each face of the reference cell

Synopsis

#include "petscfe.h" 
PetscErrorCode PetscFEGetFaceTabulation(PetscFE fem, PetscInt k, PetscTabulation *Tf)
Not collective

Input Parameters

fem - The PetscFE object
k - The highest derivative we need to tabulate, very often 1

Output Parameters

Tf - The basis function values and derivatives at face quadrature points

Note

T->T[0] = Bf[((f*Nq + q)*pdim + i)*Nc + c] is the value at point f,q for basis function i and component c
T->T[1] = Df[(((f*Nq + q)*pdim + i)*Nc + c)*dim + d] is the derivative value at point f,q for basis function i, component c, in direction d
T->T[2] = Hf[((((f*Nq + q)*pdim + i)*Nc + c)*dim + d)*dim + e] is the value at point f,q for basis function i, component c, in directions d and e

See Also

PetscFEGetCellTabulation(), PetscFECreateTabulation(), PetscTabulationDestroy()

Level

intermediate

Location

src/dm/dt/fe/interface/fe.c
Index of all FE routines
Table of Contents for all manual pages
Index of all manual pages