Fortran 77 package for solving unconstrained and constrained optimization problems, systems of nonlinear equations, and nonlinear least-squares problems.

Ratfor code for the primal-dual log barrier form of the interior point LP solver of Lustig, Marsten and Shanno, ORSA J Opt 1992.

Optimization algorithms and software for high-performance computers. The software includes subroutines for the solution of systems of nonlinear equations, nonlinear least squares problems, and minimization problems. Code can be downloaded from ftp://i...

Fortran 77 codes for unconstrained, bound constrained, and nonlinearly constrained optimization.

By Dimitri P. Bertsekas.

Fortran 77 code by S. P. Uryasev. A similar code is at http://www.ise.ufl.edu/uryasev/varg.txt .

KNITRO, General Nonlinear Programming Solver; L-BFGS, Limited Memory Codes; PREQN, Preconditioning the Conjugate Gradient Method; and CG+, Conjugate Gradient Software.

Fortran 77 code by Valentia Ruggiero for large and sparse convex quadratic programs.

By R.E. Burkard, E. Cela, S.E. Karisch and F. Rendl.

Sells Fortran 77 optimization codes MINOS (linear programming and nonlinear optimization), SNOPT (large-scale quadratic and nonlinear programming), NPSOL (nonlinear programming), LSSOL (Linearly constrained linear least squares problems and convex qua...