:orphan:
# PetscDTSimplexQuadratureType
A description of classes of quadrature rules for simplices 
## Synopsis
```
typedef enum {
  PETSCDTSIMPLEXQUAD_DEFAULT = -1,
  PETSCDTSIMPLEXQUAD_CONIC   = 0,
  PETSCDTSIMPLEXQUAD_MINSYM
} PetscDTSimplexQuadratureType;
```

## Values

- ***`PETSCDTSIMPLEXQUAD_DEFAULT` -*** Quadrature rule chosen by PETSc
- ***`PETSCDTSIMPLEXQUAD_CONIC`   -*** Quadrature rules constructed as
conically-warped tensor products of 1D
Gauss-Jacobi quadrature rules.  These are
explicitly computable in any dimension for any
degree, and the tensor-product structure can be
exploited by sum-factorization methods, but
they are not efficient in terms of nodes per
polynomial degree.
- ***`PETSCDTSIMPLEXQUAD_MINSYM`  -*** Quadrature rules that are fully symmetric
(symmetries of the simplex preserve the nodes
and weights) with minimal (or near minimal)
number of nodes.  In dimensions higher than 1
these are not simple to compute, so lookup
tables are used.





## See Also
 `PetscQuadrature`, `PetscDTSimplexQuadrature()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/include/petscdt.h.html#PetscDTSimplexQuadratureType">include/petscdt.h</A>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/include/petscdt.h)


[Index of all DT routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)