<html><head><meta http-equiv='Content-Type' content='text/html; charset=gb2312'><style type='text/css'><!--.style3 {color: #0072A8}--></style></head><body bgcolor='#FFFFFF' topmargin='5' leftmargin='5' rightmargin='5' bottommargin='5' marginwidth='0' marginheight='0'><P>Hi, all</P>
<P>Last time, I ask a question for the objective functions that have no known forms. But in some cases, the constraints also can't be written directly. I mean the constraints must be expressed by some other iterations just as my last question that about objective functions. Therefore evaluation of Jacobian of constraints can't be given, too. I wonder whether this kind of NLP questions can be solved by IPOPT. For Ipopt is based on the iteration method, I think, if the iteration of the constraints can be combined into the iteration of Ipopt itself ? Thank you.</P></body></html>