# SNESMonitorRange
Prints the percentage of residual elements that are more then 10 percent of the maximum entry in the residual 
## Synopsis
```
#include "petsc/private/snesimpl.h"   
PetscErrorCode SNESMonitorRange(SNES snes, PetscInt it, PetscReal rnorm, PetscViewerAndFormat *vf)
```
Collective on snes


## Input Parameters

- ***snes   -*** iterative context
- ***it    -*** iteration number
- ***rnorm -*** 2-norm (preconditioned) residual value (may be estimated).
- ***dummy -*** unused monitor context



## Options Database Key

- ***-snes_monitor_range -*** Activates `SNESMonitorRange()`



## Note
This is not called directly by users, rather one calls `SNESMonitorSet()`, with this function as an argument, to cause the monitor
to be used during the `SNES` solve.




## See Also
 `SNESMonitorSet()`, `SNESMonitorDefault()`, `SNESMonitorLGCreate()`, `SNESMonitorScaling()`

## Level
intermediate

## Location
<A HREF="PETSC_DOC_OUT_ROOT_PLACEHOLDER/src/snes/interface/snesut.c.html#SNESMonitorRange">src/snes/interface/snesut.c</A>


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


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