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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
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<A NAME="MatCreateSeqUSFFT"><H1>MatCreateSeqUSFFT</H1></A>
Creates a matrix object that provides sequential USFFT via the external package FFTW
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscmat.h"
#include "petscdmda.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../DMDA/MatCreateSeqUSFFT.html#MatCreateSeqUSFFT">MatCreateSeqUSFFT</A>(<A HREF="../Vec/Vec.html#Vec">Vec</A> sampleCoords, <A HREF="../DMDA/DMDA.html#DMDA">DMDA</A> freqDA, <A HREF="../Mat/Mat.html#Mat">Mat</A> *A)
</PRE>
Collective
<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>da </B></TD><TD>- geometry of the domain encoded by a <A HREF="../DMDA/DMDA.html#DMDA">DMDA</A>
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Output 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
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Options Database Keys</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>-mat_usfft_plannerflags </B></TD><TD>- set the FFTW planner flags
</TD></TR></TABLE>
<P>
<P>
<P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>intermediate<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/dm/impls/da/usfft/matusfft.c.html#MatCreateSeqUSFFT">src/dm/impls/da/usfft/matusfft.c</A>
<BR><A HREF="./index.html">Index of all DMDA routines</A>
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