[Coin-ipopt] Example hs071_f.f

Carl Damon Laird claird at andrew.cmu.edu
Mon May 8 21:12:33 EDT 2006

I am not sure exactly what 25 and 4 represent in your question, but it is 
my udnerstanding that DAT and IDAT are arrays that you can use for 
whatever you wish. These represent "user data" that you may want passed 
into your evaluation routines through IPOPT.

The hs071_f example does not use the values from these arrays in the 
evaluation routines since they are not needed, but we include them in the 
call to optimize as an example. Of course, in the code for your specific 
problem you can set the values as you wish and then access the entries in 
the evaluation routines.

I hope this helps, but if I have misunderstood your question, feel free to 
submit to the list again.



On Sun, 7 May 2006, Su Ba wrote:

> Hi,
> Should it is more reasonable to revise DAT(1) = 25 and DAT(2)=4 instead of 
> zeros in the example hs071_f.f ?  Could you tell me about the usage of 
> IDAT(n)?  In which case we need it?  Can you give me an example?
> Thank you so much.
> Danh.
> _________________________________________________________________
> Express yourself instantly with MSN Messenger! Download today it's FREE! 
> http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/
> _______________________________________________
> Coin-ipopt mailing list
> Coin-ipopt at list.coin-or.org
> http://list.coin-or.org/mailman/listinfo/coin-ipopt

More information about the Coin-ipopt mailing list