<div dir="ltr">So basically I wanna to know:<div><br></div><div>At each iteration,<div><br></div><div style>1. Can we change the sparsity structure of Hessian?</div><div style><br></div><div style>2. eval_h are called with const Ipopt::Number* x = NULL first or Ipopt::Index iRow = NULL first.</div>
<div style><br></div><div style><br></div><div style>Thanks.</div><div style><br></div><div style><br></div><div style>Best,</div><div style>Xin</div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Thu, Feb 14, 2013 at 11:20 PM, Xin Zhao <span dir="ltr"><<a href="mailto:sean.null@gmail.com" target="_blank">sean.null@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Dear all,<div><br></div><div>Would anyone like to explain me some details on the sequence how eval_h and eval_jac_g are called?</div>
<div> </div><div>At each iteration, are eval_h and eval_jac_g called first with values = NULL or not?</div>
<div><br></div><div>For my case, the sparsity structure of eval_h and eval_jac_g depends on the variables x. So it matters </div><div>how eval_h and eval_jac_g are called first. Or maybe there is another workout?</div>
<div><br></div><div>Thanks.</div><div><br></div><div><br></div><div>Best,</div><div>Xin</div></div>
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