[Coin-ipopt] IPOPT as an Excel solver plugin

[Andreas Waechter]

Hi,

> I thought IPOPT was one of the engines available with Frontline's
> Premium solver. Can someone confirm?

I don't know about that.  It seems that they have Knitro, though...

>> The client needs Excel, they're a Windows shop.  I'll see what I can do to
>> make it cross-platform though.

It would definitly be great to have something like this!

I'm just wondering how nonlinear functions would be given to the 
optimizer...?  Does one have to specify all derivatives, or would you use 
finited differences or automatic differentiation?

Thanks,

Andreas


>>
>> Damien
>>
>>
>> -----Original Message-----
>> From: John Pye [mailto:john.pye at anu.edu.au]
>> Sent: Tuesday, December 18, 2007 11:16 PM
>> To: Damien Hocking
>> Cc: coin-ipopt at list.coin-or.org
>> Subject: Re: [Coin-ipopt] IPOPT as an Excel solver plugin
>>
>> Sounds like a great idea! Perhaps this stuff might be helpful (and did
>> you consider OpenOffice instead?)
>> http://wiki.services.openoffice.org/wiki/Optimization_Solver
>>
>> Cheers
>> JP
>>
>> Damien Hocking wrote:
>>>
>>> Howdy.  Has anyone done one of these they'd like to share?  Otherwise
>>> I'll write one.
>>>
>>>
>>>
>>> Damien
>>>
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