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FilmCraft: An open-source, nonlinear video editor written from scratch in pure Rust

Open finite element infrastructure for nonlinear computational mechanics.

Modeling language for Mathematical Optimization (linear, mixed-integer, conic, semidefinite, nonlinear)

constrained nonlinear optimization for scientific machine learning, UQ, and AI

A Julia interface to the Ipopt nonlinear solver

The fastest open-source C++17 optimization library for unconstrained nonlinear problems. Header-only, single dependency. Highest reliability, composable function expressions, unconstrained and constrained solvers.

Simulation of High Aspect Ratio aeroplanes and wind turbines in Python: a nonlinear aeroelastic code

Award winning software library for nonlinear dynamics and nonlinear timeseries analysis

Official development repository for SUNDIALS - a SUite of Nonlinear and DIfferential/ALgebraic equation Solvers. Pull requests are welcome for bug fixes and minor changes.

A JuMP-based Nonlinear Integer Program Solver

Tools for the exploration of chaos and nonlinear dynamics

Twine, a tool for telling interactive, nonlinear stories

A library of modern Fortran modules for nonlinear optimization

An automatic code generator for nonlinear model predictive control (NMPC) and the continuation/GMRES method (C/GMRES) based numerical solvers for NMPC

Mathematical Optimization in Julia. Local, global, gradient-based and derivative-free. Linear, Quadratic, Convex, Mixed-Integer, and Nonlinear Optimization in one simple, fast, and differentiable interface.

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.

A powerful nonlinear dialogue system for Godot

One open-source modeler for structures, heat and fluids, built from scratch in pure Rust: parametric part in, verified results out. Automatic all-hex and tet meshing, our own nonlinear implicit and explicit FEA, heat transfer and lattice Boltzmann CFD — every result checked against theory. For engineers and AI agents alike. Free, forever.