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<div id="version" align=right><b>petsc-3.4.2 2013-07-02</b></div>
<A NAME="PetscOptionsRealArray"><H1>PetscOptionsRealArray</H1></A>
Gets an array of double values for a particular option in the database. The values must be separated with commas with no intervening spaces.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscsys.h"
PetscErrorCode PetscOptionsRealArray(const char opt[],const char text[],const char man[],PetscReal value[],PetscInt *n,PetscBool *set)
</PRE>
Logically Collective on the communicator passed in <A HREF="../Sys/PetscOptionsBegin.html#PetscOptionsBegin">PetscOptionsBegin</A>()
<P>
<H3><FONT COLOR="#CC3333">Input Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>opt </B></TD><TD>- the option one is seeking
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>text </B></TD><TD>- short string describing option
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>man </B></TD><TD>- manual page for option
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nmax </B></TD><TD>- maximum number of values
</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>value </B></TD><TD>- location to copy values
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>nmax </B></TD><TD>- actual number of values found
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>set </B></TD><TD>- <A HREF="../Sys/PETSC_TRUE.html#PETSC_TRUE">PETSC_TRUE</A> if found, else <A HREF="../Sys/PETSC_FALSE.html#PETSC_FALSE">PETSC_FALSE</A>
</TD></TR></TABLE>
<P>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
The user should pass in an array of doubles
<P>
Must be between a <A HREF="../Sys/PetscOptionsBegin.html#PetscOptionsBegin">PetscOptionsBegin</A>() and a <A HREF="../Sys/PetscOptionsEnd.html#PetscOptionsEnd">PetscOptionsEnd</A>()
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sys/PetscOptionsGetInt.html#PetscOptionsGetInt">PetscOptionsGetInt</A>(), <A HREF="../Sys/PetscOptionsGetReal.html#PetscOptionsGetReal">PetscOptionsGetReal</A>(),
<BR><A HREF="../Sys/PetscOptionsHasName.html#PetscOptionsHasName">PetscOptionsHasName</A>(), <A HREF="../Sys/PetscOptionsGetIntArray.html#PetscOptionsGetIntArray">PetscOptionsGetIntArray</A>(), <A HREF="../Sys/PetscOptionsGetRealArray.html#PetscOptionsGetRealArray">PetscOptionsGetRealArray</A>(), <A HREF="../Sys/PetscOptionsBool.html#PetscOptionsBool">PetscOptionsBool</A>(),
<A HREF="../Sys/PetscOptionsName.html#PetscOptionsName">PetscOptionsName</A>(), <A HREF="../Sys/PetscOptionsBegin.html#PetscOptionsBegin">PetscOptionsBegin</A>(), <A HREF="../Sys/PetscOptionsEnd.html#PetscOptionsEnd">PetscOptionsEnd</A>(), <A HREF="../Sys/PetscOptionsHead.html#PetscOptionsHead">PetscOptionsHead</A>(),
<A HREF="../Sys/PetscOptionsStringArray.html#PetscOptionsStringArray">PetscOptionsStringArray</A>(),<A HREF="../Sys/PetscOptionsRealArray.html#PetscOptionsRealArray">PetscOptionsRealArray</A>(), <A HREF="../Sys/PetscOptionsScalar.html#PetscOptionsScalar">PetscOptionsScalar</A>(),
<A HREF="../Sys/PetscOptionsBoolGroupBegin.html#PetscOptionsBoolGroupBegin">PetscOptionsBoolGroupBegin</A>(), <A HREF="../Sys/PetscOptionsBoolGroup.html#PetscOptionsBoolGroup">PetscOptionsBoolGroup</A>(), <A HREF="../Sys/PetscOptionsBoolGroupEnd.html#PetscOptionsBoolGroupEnd">PetscOptionsBoolGroupEnd</A>(),
<A HREF="../Sys/PetscOptionsList.html#PetscOptionsList">PetscOptionsList</A>(), <A HREF="../Sys/PetscOptionsEList.html#PetscOptionsEList">PetscOptionsEList</A>()
<P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>beginner
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/sys/objects/aoptions.c.html#PetscOptionsRealArray">src/sys/objects/aoptions.c</A>
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