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<div id="version" align=right><b>petsc-3.10.3 2018-12-18</b></div>
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<A NAME="MatIsTranspose"><H1>MatIsTranspose</H1></A>
Test whether a matrix is another one's transpose, or its own, in which case it tests symmetry.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Mat/MatIsTranspose.html#MatIsTranspose">MatIsTranspose</A>(<A HREF="../Mat/Mat.html#Mat">Mat</A> A,<A HREF="../Mat/Mat.html#Mat">Mat</A> B,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> tol,<A HREF="../Sys/PetscBool.html#PetscBool">PetscBool</A> *flg)
</PRE>
Collective on <A HREF="../Mat/Mat.html#Mat">Mat</A>
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>A </B></TD><TD>- the matrix to test
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>B </B></TD><TD>- the matrix to test against, this can equal the first parameter
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<DT><B>flg </B> -the result
<br>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
Only available for SeqAIJ/MPIAIJ matrices. The sequential algorithm
has a running time of the order of the number of nonzeros; the parallel
test involves parallel copies of the block-offdiagonal parts of the matrix.
<P>
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Mat/MatTranspose.html#MatTranspose">MatTranspose</A>(), <A HREF="../Mat/MatIsSymmetric.html#MatIsSymmetric">MatIsSymmetric</A>(), <A HREF="../Mat/MatIsHermitian.html#MatIsHermitian">MatIsHermitian</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/mat/interface/matrix.c.html#MatIsTranspose">src/mat/interface/matrix.c</A>
<P><H3><FONT COLOR="CC3333">Implementations</FONT></H3><A HREF="../../../src/mat/impls/aij/mpi/mpiaij.c.html#MatIsTranspose_MPIAIJ">MatIsTranspose_MPIAIJ in src/mat/impls/aij/mpi/mpiaij.c</A><BR>
<A HREF="../../../src/mat/impls/aij/seq/aij.c.html#MatIsTranspose_SeqAIJ">MatIsTranspose_SeqAIJ in src/mat/impls/aij/seq/aij.c</A><BR>
<A HREF="../../../src/mat/impls/baij/seq/baij.c.html#MatIsTranspose_SeqBAIJ">MatIsTranspose_SeqBAIJ in src/mat/impls/baij/seq/baij.c</A><BR>
<A HREF="../../../src/mat/impls/sell/mpi/mpisell.c.html#MatIsTranspose_MPISELL">MatIsTranspose_MPISELL in src/mat/impls/sell/mpi/mpisell.c</A><BR>
<BR><A HREF="./index.html">Index of all Mat routines</A>
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