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

PetscDTGaussLobattoLegendreQuadrature()

Level

beginner

Location

src/dm/dt/interface/dt.c

Examples

src/ksp/ksp/tutorials/ex68.c
src/ksp/ksp/tutorials/ex69.c

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