PRIMA is a package for solving general nonlinear optimization problems without using derivatives. It provides the reference implementation for Powell's derivative-free optimization methods, i.e., COBYLA, UOBYQA, NEWUOA, BOBYQA, and LINCOA. PRIMA means Reference Implementation for Powell's methods with Modernization and Amelioration, P for Powell.

python optimization matlab constrained-optimization numerical-optimization nonlinear-optimization unconstrained-optimization prima powell blackbox-optimization modern-fortran cobyla derivative-free-optimization simulation-based-optimization bobyqa newuoa uobyqa lincoa zeroth-order-method

• Updated Sep 11, 2026
• Fortran

Powell's Derivative-Free Optimization solvers.

python fortran simulation optimization matlab constrained-optimization numerical-optimization nonlinear-optimization optimization-algorithms unconstrained-optimization powell blackbox-optimization cobyla derivative-free-optimization zeroth-order-optimization simulation-based-optimization bobyqa newuoa uobyqa lincoa

• Updated May 2, 2025
• Fortran

Optimization software by Professor M. J. D. Powell

constrained-optimization numerical-optimization prima derivative-free-optimization bobyqa newuoa uobyqa lincoa tolmin

• Updated Feb 20, 2024
• Fortran

PRIMA: Reference Implementation for Powell's methods with Modernization and Amelioration

python optimization matlab constrained-optimization numerical-optimization nonlinear-optimization unconstrained-optimization powell blackbox-optimization modern-fortran cobyla derivative-free-optimization gradient-free-optimization zeroth-order-optimization simulation-based-optimization bobyqa newuoa uobyqa lincoa

• Updated Sep 18, 2023