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# PFView
Prints information about a mathematical function 
## Synopsis
```
#include "petscpf.h" 
PetscErrorCode PFView(PF pf, PetscViewer viewer)
```
Collective unless `viewer` is `PETSC_VIEWER_STDOUT_SELF`


## Input Parameters

- ***PF -*** the `PF` context
- ***viewer -*** optional visualization context





## Note
The available visualization contexts include

- ***`PETSC_VIEWER_STDOUT_SELF` -*** standard output (default)
- ***`PETSC_VIEWER_STDOUT_WORLD` -*** synchronized standard
output where only the first processor opens
the file.  All other processors send their
data to the first processor to print.


The user can open an alternative visualization contexts with
`PetscViewerASCIIOpen()` (output to a specified file).


## See Also
 `PF`, `PetscViewerCreate()`, `PetscViewerASCIIOpen()`

## Level
developer

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/pf/interface/pf.c.html#PFView">src/vec/pf/interface/pf.c</A>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/pf/impls/constant/const.c.html#PFView_Constant">PFView_Constant in src/vec/pf/impls/constant/const.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/pf/impls/constant/const.c.html#PFView_Identity">PFView_Identity in src/vec/pf/impls/constant/const.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/pf/impls/matlab/cmatlab.c.html#PFView_Matlab">PFView_Matlab in src/vec/pf/impls/matlab/cmatlab.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/vec/pf/impls/string/cstring.c.html#PFView_String">PFView_String in src/vec/pf/impls/string/cstring.c</A><BR>


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


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