# PetscFEGetCellTabulation
Returns the tabulation of the basis functions at the quadrature points on the reference cell 
## Synopsis
```
#include "petscfe.h" 
PetscErrorCode PetscFEGetCellTabulation(PetscFE fem, PetscInt k, PetscTabulation *T)
```
Not collective


## Input Parameters

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



## Output Parameter

- ***T -*** The basis function values and derivatives at quadrature points





## Note
```none
  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 function i, component c, in directions d and e
```



## See Also
 `PetscFE`, `PetscSpace`, `PetscDualSpace`, `PetscTabulation`, `PetscFECreateTabulation()`, `PetscTabulationDestroy()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/fe/interface/fe.c.html#PetscFEGetCellTabulation">src/dm/dt/fe/interface/fe.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/dt/fe/interface/fe.c)


[Index of all FE routines](index.md)  
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[Index of all manual pages](/docs/manualpages/singleindex.md)  
