OOFramework
From OpenOpt
- Free (license: BSD) cross-platform (Linux, Windows, Mac etc) software, written in modern high-stream Python language, alternative to commercial frameworks with obsolete and/or banausic programming constructs like AMPL, GAMS, LINGO, AIMMS, TOMOPT's TOMLAB / TOMNET (see for example TOMLAB users and prices)
- Primary goals:
- providing connections to lots of solvers, e.g. IPOPT, cplex, ALGENCAN, glpk, lpsolve, CVXOPT, PSwarm, nlopt, BOBYQA, lbfgsb (some are C- or Fortran-written) with easy and unified syntax
- trying to enhance algorithms for numerical optimization invented by Ukrainian academicians Boris Pshenichniy and Naum Z. Shor
- Organized as an ordinary Python module, thus you can easily stack it with NumPy arrays, SciPy sparse matrices and other Python functions and code
- Graphical output, automatic derivatives check for user-supplied objFunc and constraints, user-defined callback functions and much more
- Capable of handling FuncDesigner code with Automatic differentiation (possibly large-scale sparse) for gradient-based solvers and interval analysis for solver with guaranteed precision interalg (most of OpenOpt users after initial coding in pure Python move to FuncDesigner, that also allows connecting C/Fortran/General Python code to its functions)
- Some native solvers (Python-written, well-known Python library NumPy is required), constrained and unconstrained, e.g.
- nonlinear/nonsmooth solvers ralg, gsubg, amsg2p
- global nonlinear solver de (differential evolution)
- interalg - solver with specifiable accuracy for global nonlinear and multiobjective problems
Now interalg can find all solutions of nonlinear equation(s) and perform numerical integration with specifiable accuracy
- some other linear and quadratic solvers code is included
- Commercial Stochastic Programming addon, free for small-scaled problems with noncommercial purposes
| Made by Dmitrey |
See also:
- DerApproximator - finite-differences derivatives approximation
- SpaceFuncs - 2D, 3D, N-dimensional geometric modeling with possibilities of parametrized calculations, numerical optimization and solving systems of geometrical equations
2007-2013
