PetscGaussLobattoLegendreIntegrate#
Compute the L2 integral of a function on the GLL points
Synopsis#
#include "petscdt.h" 
PetscErrorCode PetscGaussLobattoLegendreIntegrate(PetscInt n, PetscReal nodes[], PetscReal weights[], const PetscReal f[], PetscReal *in)
Not Collective
Input Parameters#
- n - the number of GLL nodes 
- nodes - the GLL nodes 
- weights - the GLL weights 
- f - the function values at the nodes 
Output Parameter#
- in - the value of the integral 
See Also#
Level#
beginner
Location#
Examples#
src/ksp/ksp/tutorials/ex69.c
src/ksp/ksp/tutorials/ex68.c
Index of all DT routines
Table of Contents for all manual pages
Index of all manual pages