PETSc version 3.15.5
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