# DMFieldGetNumComponents
Returns the number of components in the field 
## Synopsis
```
#include "petscdmfield.h" 
#include "petscdmfield.h" 
PetscErrorCode DMFieldGetNumComponents(DMField field, PetscInt *nc)
```
Not collective


## Input Parameter

- ***field -*** The `DMField` object



## Output Parameter

- ***nc -*** The number of field components





## See Also
 `DMField`, `DMFieldEvaluate()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/field/interface/dmfield.c.html#DMFieldGetNumComponents">src/dm/field/interface/dmfield.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/field/tutorials/ex1.c.html">src/dm/field/tutorials/ex1.c.html</A><BR>


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