slepc-3.18.2 2023-01-26
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# MFNMonitorDefault

Print the error estimate of the current approximation at each iteration of the matrix function solver.

### Synopsis

    #include "slepcmfn.h"
    PetscErrorCode MFNMonitorDefault(MFN mfn,PetscInt its,PetscReal errest,PetscViewerAndFormat *vf)

Collective on mfn

### Input Parameters

| mfn | - matrix function context
| its | - iteration number
| errest | - error estimate
| vf | - viewer and format for monitoring

### Options Database Key

| -mfn_monitor | - activates MFNMonitorDefault()

### See Also

MFNMonitorSet()

### Level

intermediate

### Location

src/mfn/interface/mfnmon.c
Index of all MFN routines
Table of Contents for all manual pages
Index of all manual pages