[Bonmin] Create a .nl file without using AMPL

[Pierre Bonami]

Dear Ranga,
To the best of my knowledge, AMPL is the only tool available to  
write .nl files.
If you have GAMS you can also use Bonmin in it. Otherwise I don't know  
of any free modeling language supporting non-linear functions and  
automatic differentiation, so the only two alternatives are NEOS  
optimization services or coding the problem and C++.
Best,
Pierre
On Jul 31, 2009, at 8:31 PM, Ranga Narayan wrote:

> Hi,
>
> Can anyone point me to a script that can take an AMPL type file and  
> generate the .nl file wihout having AMPL installed?  I looked at the  
> article "writing .nl Files" by David m Gay, but its not entirely  
> useful. My main purpose is to use Bonmin for an optimization problem  
> via the .nl file, but I don't have AMPL installed on my computer
>
> Thanks for any pointers
> Ranga
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