[Coin-ipopt] 2 questions about hessian info calculations

saeed serpooshan sserpooshan at yahoo.com
Sat Feb 26 07:10:04 EST 2005

dear andreas
this is list of questions:
1- if we don't have hessian info, what is best option to be used by IPOPT? (only one method or severall options?)
2- if i calculate hessian with a finite-difference method ( such as df(x)=f(x+h)/h ) , is there any difference between it and what will be done by IPOPT when we run it only by jacobian? 
thanks alot

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