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<div id="version" align=right><b>slepc-3.22.2 2024-12-02</b></div>
<div id="bugreport" align=right><a href="mailto:slepc-maint@upv.es?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: slepc-3.22.2 v3.22.2 docs/manualpages/PEP/PEPErrorView.html "><small>Report Typos and Errors</small></a></div>
<H1>PEPErrorView</H1>
Displays the errors associated with the computed solution (as well as the eigenvalues).
<H3><FONT COLOR="#883300">Synopsis</FONT></H3>
<PRE>
#include "slepcpep.h"
<A HREF="https://petsc.org/release/manualpages/Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../PEP/PEPErrorView.html#PEPErrorView">PEPErrorView</A>(<A HREF="../PEP/PEP.html#PEP">PEP</A> pep,<A HREF="../PEP/PEPErrorType.html#PEPErrorType">PEPErrorType</A> etype,<A HREF="https://petsc.org/release/manualpages/Viewer/PetscViewer.html#PetscViewer">PetscViewer</A> viewer)
</PRE>
Collective
<P>
<H3><FONT COLOR="#883300">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>pep </B></TD><TD> - the eigensolver context
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>etype </B></TD><TD> - error type
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>viewer </B></TD><TD> - optional visualization context
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-pep_error_absolute </B></TD><TD> - print absolute errors of each eigenpair
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-pep_error_relative </B></TD><TD> - print relative errors of each eigenpair
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-pep_error_backward </B></TD><TD> - print backward errors of each eigenpair
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#883300">Notes</FONT></H3>
By default, this function checks the error of all eigenpairs and prints
the eigenvalues if all of them are below the requested tolerance.
If the viewer has format=<A HREF="https://petsc.org/release/manualpages/Viewer/PetscViewerFormat.html#PetscViewerFormat">PETSC_VIEWER_ASCII_INFO_DETAIL</A> then a table with
eigenvalues and corresponding errors is printed.
<P>
<P>
<H3><FONT COLOR="#883300">See Also</FONT></H3>
<A HREF="../PEP/PEPSolve.html#PEPSolve">PEPSolve</A>(), <A HREF="../PEP/PEPValuesView.html#PEPValuesView">PEPValuesView</A>(), <A HREF="../PEP/PEPVectorsView.html#PEPVectorsView">PEPVectorsView</A>()
<BR><P><B></B><H3><FONT COLOR="#883300">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#883300">Location</FONT></H3>
</B><A HREF="../../../src/pep/interface/pepview.c.html#PEPErrorView">src/pep/interface/pepview.c</A>
<P><H3><FONT COLOR="#883300">Examples</FONT></H3>
<A HREF="../../../src/pep/tutorials/ex16.c.html">src/pep/tutorials/ex16.c</A><BR>
<A HREF="../../../src/pep/tutorials/ex16f.F90.html">src/pep/tutorials/ex16f.F90</A><BR>
<A HREF="../../../src/pep/tutorials/ex17.c.html">src/pep/tutorials/ex17.c</A><BR>
<A HREF="../../../src/pep/tutorials/ex28.c.html">src/pep/tutorials/ex28.c</A><BR>
<A HREF="../../../src/pep/tutorials/ex38.c.html">src/pep/tutorials/ex38.c</A><BR>
<A HREF="../../../src/pep/tutorials/ex40.c.html">src/pep/tutorials/ex40.c</A><BR>
<A HREF="../../../src/pep/tutorials/ex50.c.html">src/pep/tutorials/ex50.c</A><BR>
<A HREF="../../../src/pep/tutorials/nlevp/acoustic_wave_1d.c.html">src/pep/tutorials/nlevp/acoustic_wave_1d.c</A><BR>
<A HREF="../../../src/pep/tutorials/nlevp/acoustic_wave_2d.c.html">src/pep/tutorials/nlevp/acoustic_wave_2d.c</A><BR>
<A HREF="../../../src/pep/tutorials/nlevp/butterfly.c.html">src/pep/tutorials/nlevp/butterfly.c</A><BR>
<A HREF="../../../src/pep/tutorials/nlevp/damped_beam.c.html">src/pep/tutorials/nlevp/damped_beam.c</A><BR>
<BR><BR><A HREF="./index.html">Index of all PEP routines</A>
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<BR><A HREF="../singleindex.html">Index of all manual pages</A>
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