:orphan:
# PetscSpaceCreateSubspace
creates a subspace from a an `origSpace` and its dual `dualSubspace` 
## Synopsis
```
#include "petscfe.h" 
PetscErrorCode PetscSpaceCreateSubspace(PetscSpace origSpace, PetscDualSpace dualSubspace, PetscReal *x, PetscReal *Jx, PetscReal *u, PetscReal *Ju, PetscCopyMode copymode, PetscSpace *subspace)
```

## Input Parameters

- ***origSpace -*** the original `PetscSpace`
- ***dualSubspace -*** no idea
- ***x -*** no idea
- ***Jx -*** no idea
- ***u -*** no idea
- ***Ju -*** no idea
- ***copymode -*** whether to copy, borrow, or own some of the input arrays I guess



## Output Parameter

- ***subspace -*** the subspace





## See Also
 `PetscSpace`, `PetscDualSpace`, `PetscCopyMode`, `PetscSpaceType`

## Level
advanced

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/dm/dt/space/impls/subspace/spacesubspace.c.html#PetscSpaceCreateSubspace">src/dm/dt/space/impls/subspace/spacesubspace.c</A>


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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/dt/space/impls/subspace/spacesubspace.c)


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