petsc-3.14.5 2021-03-03
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# DMPlexComputeIntegralFEM

Form the integral over the domain from the global input X using pointwise functions specified by the user

### Synopsis

    #include "petscdmplex.h"
    PetscErrorCode DMPlexComputeIntegralFEM(DM dm, Vec X, PetscScalar *integral, void *user)

### Input Parameters

| dm | - The mesh
| X | - Global input vector
| user | - The user context

### Output Parameter

| integral | - Integral for each field

### See Also

DMPlexComputeResidualFEM()

### Level

developer

### Location

src/dm/impls/plex/plexfem.c

### Examples

src/ts/tutorials/ex48.c.html
src/ts/utils/dmplexlandau/tutorials/ex2.c.html
Index of all DMPLEX routines
Table of Contents for all manual pages
Index of all manual pages