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<div id="version" align=right><b>petsc-3.7.5 2017-01-01</b></div>
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<A NAME="TSAlpha2GetParams"><H1>TSAlpha2GetParams</H1></A>
gets the algorithmic parameters for <A HREF="../TS/TSALPHA2.html#TSALPHA2">TSALPHA2</A>
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
PetscErrorCode TSAlpha2GetParams(TS ts,PetscReal *alpha_m,PetscReal *alpha_f,PetscReal *gamma,PetscReal *beta)
</PRE>
Not Collective
<P>
<H3><FONT COLOR="#CC3333">Input Parameter</FONT></H3>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>ts </B></TD><TD>- timestepping context
</TD></TR>
<P>
<H3><FONT COLOR="#CC3333">Output Parameters</FONT></H3>
<TABLE border="0" cellpadding="0" cellspacing="0">
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>\alpha_m </B></TD><TD>- algorithmic parameter
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>\alpha_f </B></TD><TD>- algorithmic parameter
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>\gamma </B></TD><TD>- algorithmic parameter
</TD></TR>
<TR><TD WIDTH=40></TD><TD ALIGN=LEFT VALIGN=TOP><B>\beta </B></TD><TD>- algorithmic parameter
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Note</FONT></H3>
Use of this function is normally only required to hack <A HREF="../TS/TSALPHA2.html#TSALPHA2">TSALPHA2</A> to
use a modified integration scheme. Users should call
<A HREF="../TS/TSAlpha2SetRadius.html#TSAlpha2SetRadius">TSAlpha2SetRadius</A>() to set the high-frequency damping (i.e. spectral
radius of the method) in order so select optimal values for these
parameters.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../TS/TSAlpha2SetRadius.html#TSAlpha2SetRadius">TSAlpha2SetRadius</A>(), <A HREF="../TS/TSAlpha2SetParams.html#TSAlpha2SetParams">TSAlpha2SetParams</A>()
<BR><P><B><P><B><FONT COLOR="#CC3333">Level:</FONT></B>advanced
<BR><FONT COLOR="#CC3333">Location:</FONT></B><A HREF="../../../src/ts/impls/implicit/alpha/alpha2.c.html#TSAlpha2GetParams">src/ts/impls/implicit/alpha/alpha2.c</A>
<BR><A HREF="./index.html">Index of all TS routines</A>
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