:orphan:
# PetscDualSpaceGetNumComponents
Return the number of components for this space 
## Synopsis
```
#include "petscfe.h" 
PetscErrorCode PetscDualSpaceGetNumComponents(PetscDualSpace sp, PetscInt *Nc)
```

## Input Parameter

- ***sp -*** The `PetscDualSpace`



## Output Parameter

- ***Nc -*** The number of components





## Note
A vector space, for example, will have d components, where d is the spatial dimension


## See Also
 `PetscDualSpaceSetNumComponents()`, `PetscDualSpaceGetDimension()`, `PetscDualSpaceCreate()`, `PetscDualSpace`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/dualspace/interface/dualspace.c.html#PetscDualSpaceGetNumComponents">src/dm/dt/dualspace/interface/dualspace.c</A>


---
[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/dt/dualspace/interface/dualspace.c)


[Index of all DUALSPACE routines](index.md)  
[Table of Contents for all manual pages](/manualpages/index.md)  
[Index of all manual pages](/manualpages/singleindex.md)