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Hi all,<br>
I'm glad to inform you about new OpenOpt release 0.39 (quarterly
since 2007).<br>
<br>
OpenOpt is free, even for commercial purposes, cross-platform
software for mathematical modeling and (mainstream) optimization.
Our website have reached 259 visitors daily, that is same to <a
href="http://tomopt.com" rel="nofollow">tomopt.com</a> and ~ 1/3
of <a href="http://gams.com" rel="nofollow">gams.com</a> ( <a
href="http://forum.openopt.org/viewtopic.php?id=570"> details</a>).<br>
<br>
In the new release:<br>
* <a href="http://openopt.org/interalg">interalg</a> (medium-scaled
solver with specifiable accuracy abs(f-f*) <= fTol): add
categorical variables and general logical constraints, many other
improvements<br>
* Some improvements for automatic differentiation<br>
* DerApproximator and some OpenOpt/FuncDesigner functionality now
works with <a href="http://openopt.org/PyPy"> PyPy</a> (Python with
dinamic compilation, some problems are solved several times faster
now)<br>
* New solver lsmr for dense/sparse <a
href="http://openopt.org/LLSP"> LLSP</a> (linear least squares)<br>
* Some bugfixes and some other changes<br>
<br>
In our website ( <a href="http://openopt.org" rel="nofollow">http://openopt.org</a>
) you could vote for most required OpenOpt Suite development
direction(s).<br>
<br>
----------------<br>
Regards, D.<br>
<a class="moz-txt-link-freetext" href="http://openiopt.org/Dmitrey">http://openiopt.org/Dmitrey</a><br>
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