From: dmitrey on
Hi all,
I'm glad to inform you about new release of our free (BSD-licensed)
soft OpenOpt 0.28 (numerical optimization), FuncDesigner 0.18 (CAS
with automatic differentiation), DerApproximator 0.18 (finite-
differeces derivatives approximation).

More details here:
http://forum.openopt.org/viewtopic.php?id=222

Regards, D.