petsc-3.13.6 2020-09-29
PetscGaussLobattoLegendreElementLaplacianCreate
computes the Laplacian for a single 1d GLL element
Synopsis
#include "petscdt.h"
PetscErrorCode PetscGaussLobattoLegendreElementLaplacianCreate(PetscInt n,PetscReal *nodes,PetscReal *weights,PetscReal ***AA)
Not Collective
Input Parameter
| n | - the number of GLL nodes
|
| nodes | - the GLL nodes
|
| weights | - the GLL weights
|
Output Parameter
A -the stiffness element
Notes
Destroy this with PetscGaussLobattoLegendreElementLaplacianDestroy()
You can access entries in this array with AA[i][j] but in memory it is stored in contiguous memory, row oriented (the array is symmetric)
See Also
PetscDTGaussLobattoLegendreQuadrature(), PetscGaussLobattoLegendreElementLaplacianDestroy()
Level
beginner
Location
src/dm/dt/interface/dt.c
Examples
src/ksp/ksp/tutorials/ex68.c.html
src/ksp/ksp/tutorials/ex69.c.html
src/ts/tutorials/ex50.c.html
src/tao/unconstrained/tutorials/spectraladjointassimilation.c.html
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages