<div class="gmail_quote">On Tue, May 15, 2012 at 12:26 AM, behzad baghapour <span dir="ltr"><<a href="mailto:behzad.baghapour@gmail.com" target="_blank">behzad.baghapour@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Thanks. Actually the jacobian which I obtain has a part of transient as J = M/dt + dR/dQ. Then I want to eliminate the time effect before calculating R^T*J*dQ as the descent direction. So, which way is correct in my case?</blockquote>
</div><br><div>This sounds like a good way to stagnate. Many transient problems _require_ the "steady-state" residual to increase (climbing a hill) before it can decrease.</div><div><br></div><div>Also, I can't tell from your description if you want the search direction to come from the transient or steady problem.</div>