No, PETSc is all C, so that has no meaning.<br><br> Matt<br><br><div class="gmail_quote">On Wed, Feb 11, 2009 at 1:10 PM, Yixun Liu <span dir="ltr"><<a href="mailto:enjoywm@cs.wm.edu">enjoywm@cs.wm.edu</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Hi,<br>
I saw MatMult() is used in ex2 as,<br>
Vec u, b;<br>
ierr = MatMult(A,u,b);<br>
<br>
MatMult is defined as,<br>
PetscErrorCode MatMult(Mat mat,Vec x,Vec y)<br>
<br>
Should be PetscErrorCode MatMult(Mat mat,Vec x,Vec &y)?<br>
<br>
Thanks.<br>
<font color="#888888"><br>
Yixun<br>
<br>
<br>
</font></blockquote></div><br><br clear="all"><br>-- <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<br>