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<div id="version" align=right><b>petsc-3.14.5 2021-03-03</b></div>
<div id="bugreport" align=right><a href="mailto:petsc-maint@mcs.anl.gov?subject=Typo or Error in Documentation &body=Please describe the typo or error in the documentation: petsc-3.14.5 v3.14.5 docs/manualpages/Sensitivity/TSComputeIHessianProductFunctionUP.html "><small>Report Typos and Errors</small></a></div>
<A NAME="TSComputeIHessianProductFunctionUP"><H1>TSComputeIHessianProductFunctionUP</H1></A>
Runs the user-defined vector-Hessian-vector product function for Fup.
<H3><FONT COLOR="#CC3333">Synopsis</FONT></H3>
<PRE>
#include "petscts.h"
<A HREF="../Sys/PetscErrorCode.html#PetscErrorCode">PetscErrorCode</A> <A HREF="../Sensitivity/TSComputeIHessianProductFunctionUP.html#TSComputeIHessianProductFunctionUP">TSComputeIHessianProductFunctionUP</A>(<A HREF="../TS/TS.html#TS">TS</A> ts,<A HREF="../Sys/PetscReal.html#PetscReal">PetscReal</A> t,<A HREF="../Vec/Vec.html#Vec">Vec</A> U,<A HREF="../Vec/Vec.html#Vec">Vec</A> *Vl,<A HREF="../Vec/Vec.html#Vec">Vec</A> Vr,<A HREF="../Vec/Vec.html#Vec">Vec</A> *VHV)
</PRE>
Collective on <A HREF="../TS/TS.html#TS">TS</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>ts </B></TD><TD>- The <A HREF="../TS/TS.html#TS">TS</A> context obtained from <A HREF="../TS/TSCreate.html#TSCreate">TSCreate</A>()
</TD></TR></TABLE>
<P>
<H3><FONT COLOR="#CC3333">Notes</FONT></H3>
<A HREF="../Sensitivity/TSComputeIHessianProductFunctionUP.html#TSComputeIHessianProductFunctionUP">TSComputeIHessianProductFunctionUP</A>() is typically used for sensitivity implementation,
so most users would not generally call this routine themselves.
<P>
<P>
<H3><FONT COLOR="#CC3333">See Also</FONT></H3>
<A HREF="../Sensitivity/TSSetIHessianProduct.html#TSSetIHessianProduct">TSSetIHessianProduct</A>()
<BR><P><B></B><H3><FONT COLOR="#CC3333">Level</FONT></H3>developer<BR>
<H3><FONT COLOR="#CC3333">Location</FONT></H3>
</B><A HREF="../../../src/ts/interface/sensitivity/tssen.c.html#TSComputeIHessianProductFunctionUP">src/ts/interface/sensitivity/tssen.c</A>
<BR><A HREF="./index.html">Index of all Sensitivity routines</A>
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