PetscDTSimplexQuadratureType#

A description of classes of quadrature rules for simplices

Synopsis#

`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#

PetscDTSimplexQuadrature()

Level#

intermediate

Location#

include/petscdt.h


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