petsc-3.13.6 2020-09-29
PetscGaussLobattoLegendreElementGradientCreate
computes the gradient for a single 1d GLL element
Synopsis
#include "petscdt.h"
PetscErrorCode PetscGaussLobattoLegendreElementGradientCreate(PetscInt n,PetscReal *nodes,PetscReal *weights,PetscReal ***AA,PetscReal ***AAT)
Not Collective
Input Parameter
| n | - the number of GLL nodes
|
| nodes | - the GLL nodes
|
| weights | - the GLL weights
|
Output Parameter
| AA | - the stiffness element
|
| AAT | - the transpose of AA (pass in NULL if you do not need this array)
|
Notes
Destroy this with PetscGaussLobattoLegendreElementGradientDestroy()
You can access entries in these arrays with AA[i][j] but in memory it is stored in contiguous memory, row oriented
See Also
PetscDTGaussLobattoLegendreQuadrature(), PetscGaussLobattoLegendreElementLaplacianDestroy()
Level
beginner
Location
src/dm/dt/interface/dt.c
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages