:orphan:
# PetscDSGetWeakForm
Returns the weak form object
## Synopsis
```
#include "petscds.h"
PetscErrorCode PetscDSGetWeakForm(PetscDS ds, PetscWeakForm *wf)
```
Not Collective
## Input Parameter
- ***ds -*** The `PetscDS` object
## Output Parameter
- ***wf -*** The weak form object
## See Also
`PetscWeakForm`, `PetscDSSetWeakForm()`, `PetscDSGetNumFields()`, `PetscDSCreate()`
## Level
beginner
## Location
src/dm/dt/interface/dtds.c
## Examples
src/snes/tutorials/ex17.c
src/snes/tutorials/ex23.c
src/ts/tutorials/ex76.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/dt/interface/dtds.c)
[Index of all DT routines](index.md)
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[Index of all manual pages](/manualpages/singleindex.md)