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# TaoView
Prints information about the `Tao` object 
## Synopsis
```
#include "petsctao.h" 
PetscErrorCode TaoView(Tao tao, PetscViewer viewer)
```
Collective


## InputParameters

- ***tao -*** the `Tao` context
- ***viewer -*** visualization context



## Options Database Key

- ***-tao_view -*** Calls `TaoView()` at the end of `TaoSolve()`





## Notes
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.



## See Also
 [](ch_tao), `Tao`, `PetscViewerASCIIOpen()`

## Level
beginner

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/interface/taosolver.c.html#TaoView">src/tao/interface/taosolver.c</A>

## Examples
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/bound/tutorials/plate2.c.html">src/tao/bound/tutorials/plate2.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/tutorials/minsurf2.c.html">src/tao/unconstrained/tutorials/minsurf2.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/tutorials/rosenbrock1f.F90.html">src/tao/unconstrained/tutorials/rosenbrock1f.F90</A><BR>

## Implementations

<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/bound/impls/blmvm/blmvm.c.html#TaoView_BLMVM">TaoView_BLMVM in src/tao/bound/impls/blmvm/blmvm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/bound/impls/bncg/bncg.c.html#TaoView_BNCG">TaoView_BNCG in src/tao/bound/impls/bncg/bncg.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/bound/impls/bnk/bnk.c.html#TaoView_BNK">TaoView_BNK in src/tao/bound/impls/bnk/bnk.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/bound/impls/bqnk/bqnk.c.html#TaoView_BQNK">TaoView_BQNK in src/tao/bound/impls/bqnk/bqnk.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/bound/impls/tron/tron.c.html#TaoView_TRON">TaoView_TRON in src/tao/bound/impls/tron/tron.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/complementarity/impls/ssls/ssls.c.html#TaoView_SSLS">TaoView_SSLS in src/tao/complementarity/impls/ssls/ssls.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/constrained/impls/admm/admm.c.html#TaoView_ADMM">TaoView_ADMM in src/tao/constrained/impls/admm/admm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/constrained/impls/almm/almm.c.html#TaoView_ALMM">TaoView_ALMM in src/tao/constrained/impls/almm/almm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/constrained/impls/ipm/ipm.c.html#TaoView_IPM">TaoView_IPM in src/tao/constrained/impls/ipm/ipm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/constrained/impls/ipm/pdipm.c.html#TaoView_PDIPM">TaoView_PDIPM in src/tao/constrained/impls/ipm/pdipm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/leastsquares/impls/brgn/brgn.c.html#TaoView_BRGN">TaoView_BRGN in src/tao/leastsquares/impls/brgn/brgn.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/leastsquares/impls/pounders/pounders.c.html#TaoView_POUNDERS">TaoView_POUNDERS in src/tao/leastsquares/impls/pounders/pounders.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/pde_constrained/impls/lcl/lcl.c.html#TaoView_LCL">TaoView_LCL in src/tao/pde_constrained/impls/lcl/lcl.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/quadratic/impls/bqpip/bqpip.c.html#TaoView_BQPIP">TaoView_BQPIP in src/tao/quadratic/impls/bqpip/bqpip.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/quadratic/impls/gpcg/gpcg.c.html#TaoView_GPCG">TaoView_GPCG in src/tao/quadratic/impls/gpcg/gpcg.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/bmrm/bmrm.c.html#TaoView_BMRM">TaoView_BMRM in src/tao/unconstrained/impls/bmrm/bmrm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/cg/taocg.c.html#TaoView_CG">TaoView_CG in src/tao/unconstrained/impls/cg/taocg.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/lmvm/lmvm.c.html#TaoView_LMVM">TaoView_LMVM in src/tao/unconstrained/impls/lmvm/lmvm.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/neldermead/neldermead.c.html#TaoView_NM">TaoView_NM in src/tao/unconstrained/impls/neldermead/neldermead.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/nls/nls.c.html#TaoView_NLS">TaoView_NLS in src/tao/unconstrained/impls/nls/nls.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/ntl/ntl.c.html#TaoView_NTL">TaoView_NTL in src/tao/unconstrained/impls/ntl/ntl.c</A><BR>
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/tao/unconstrained/impls/owlqn/owlqn.c.html#TaoView_OWLQN">TaoView_OWLQN in src/tao/unconstrained/impls/owlqn/owlqn.c</A><BR>


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