PetscFECreateTabulation — PETSc 3.21.4 documentation

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# PetscFECreateTabulation

Tabulates the basis functions, and perhaps derivatives, at the points provided.

## Synopsis

    #include "petscfe.h"
    PetscErrorCode PetscFECreateTabulation(PetscFE fem, PetscInt nrepl, PetscInt npoints, const PetscReal points[], PetscInt K, PetscTabulation *T)

Not Collective

## Input Parameters

- fem - The `PetscFE` object

- nrepl - The number of replicas

- npoints - The number of tabulation points in a replica

- points - The tabulation point coordinates

- K - The number of derivatives calculated

## Output Parameter

- T - The basis function values and derivatives at tabulation points

## Note

      T->T[0] = B[(p*pdim + i)*Nc + c] is the value at point p for basis function i and component c
      T->T[1] = D[((p*pdim + i)*Nc + c)*dim + d] is the derivative value at point p for basis function i, component c, in direction d
      T->T[2] = H[(((p*pdim + i)*Nc + c)*dim + d)*dim + e] is the value at point p for basis
      T->function i, component c, in directions d and e

## See Also

`PetscTabulation`, `PetscFEGetCellTabulation()`, `PetscTabulationDestroy()`

## Level

intermediate

## Location

src/dm/dt/fe/interface/fe.c

## Implementations

PetscFECreateTabulation_Basic() in src/dm/dt/fe/impls/basic/febasic.c
PetscFECreateTabulation_Composite() in src/dm/dt/fe/impls/composite/fecomposite.c
PetscFECreateTabulation_Vector() in src/dm/dt/fe/impls/vector/fevector.c

Index of all FE routines
Table of Contents for all manual pages
Index of all manual pages