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NLopt is a free/open-source library for nonlinear optimization,
providing a common interface for a number of different free optimization
outines available online as well as original implementations of various
other algorithms. Its features include:
- Callable from C, C++, Fortran, Matlab or GNU Octave, Python,
GNU Guile, Julia, GNU R, Lua, and OCaml.
- A common interface for many different algorithms -- try a different
algorithm just by changing one parameter.
- Support for large-scale optimization (some algorithms scalable to
millions of parameters and thousands of constraints).
- Both global and local optimization algorithms.
- Algorithms using function values only (derivative-free) and also
algorithms exploiting user-supplied gradients.
- Algorithms for unconstrained optimization, bound-constrained
optimization, and general nonlinear inequality/equality constraints.
- Free/open-source software under the GNU LGPL
(and looser licenses for some portions of NLopt).
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