A large scale non-linear optimization library
A library for differentiable nonlinear optimization
IMU + X(GNSS, 6DoF Odom) Loosely-Coupled Fusion Localization based on ESKF, IEKF, UKF(UKF/SPKF, JUKF, SVD-UKF) and MAP
Sparse nonlinear least squares in JAX
DeepLM: Large-scale Nonlinear Least Squares on Deep Learning Frameworks using Stochastic Domain Decomposition (CVPR 2021)
A library of modern Fortran modules for nonlinear optimization
A Super Fast Optimization Library
Least squares adjustment software
A nonlinear least square(NLLS) solver. Fomulate the NLLS as graph optimization.
Advanced Technique for Curve Fitting
{gslnls}: GSL multi-start nonlinear least-squares fitting in R
An optimizer of robustified Non-Linear Least Squares problems
Code and data for the Robotics 2026 paper “Efficient Incremental SLAM via Information-Guided Gating and Selective Partial Optimization”; includes MATLAB/Octave reference code plus C++ and Python prototypes.
Solve nonlinear systems of equations and nonlinear least squares in Julia
Scientific fitting for Julia with explicit uncertainties, diagnostics, profiles, and Makie plots.
Fortran bindings to libdogleg - a large-scale nonlinear least-squares optimization library
Fast, easy-to-use C++17 nonlinear equation, least-squares and fixed-point solvers for MSVC, with a modeling environment (ModelEnv) for variables, constraints and Jacobians.
Simultaneous global fitting for spectroscopy
Extended Kalman and NLS filter design for a GPS receiver using real data
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