<div dir="ltr">On Tue, Sep 17, 2013 at 7:19 AM, 丁老师 <span dir="ltr"><<a href="mailto:ztdepyahoo@163.com" target="_blank">ztdepyahoo@163.com</a>></span> wrote:<br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex">
<div style="line-height:1.7;font-size:14px;font-family:arial"><div style="line-height:1.7;font-size:14px;font-family:arial"><div style="line-height:1.7;font-size:14px;font-family:arial"><div style="line-height:1.7;font-size:14px;font-family:arial">
<div style="line-height:1.7;font-size:14px;font-family:arial">i want to define a function for the computation of the equation residual in  a special way. </div><div style="line-height:1.7;font-size:14px;font-family:arial">
does petsc provide this capbility<br></div></div></div></div></div><span title="neteasefooter"><span></span></span></blockquote></div><br><a href="http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/KSPSetConvergenceTest.html#KSPSetConvergenceTest">http://www.mcs.anl.gov/petsc/petsc-current/docs/manualpages/KSP/KSPSetConvergenceTest.html#KSPSetConvergenceTest</a></div>
<div class="gmail_extra"><br></div><div class="gmail_extra">   Matt<br clear="all"><div><br></div>-- <br>What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead.<br>
-- Norbert Wiener
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