liblbfgs ☆

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Description:
C library for limited-memory BFGS optimization algorithm

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Other

Tags: optimization c-library numerical algorithm math

Install: brew install liblbfgs

About:
Liblbfgs is a C library implementing the Limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) algorithm, a widely used method for unconstrained optimization. It provides an efficient solution for problems with large numbers of variables where the full Hessian matrix is too expensive to compute and store. The library is designed to be fast, portable, and easy to integrate into other C/C++ projects.

Key Features:

High-performance L-BFGS implementation
No external dependencies beyond standard C libraries
Simple and clean API for easy integration
Portable across various platforms

Use Cases:

Machine learning model training (e.g., logistic regression)
Numerical optimization in scientific computing
Parameter estimation in statistical models

Alternatives:

NLopt – NLopt is a more comprehensive library with a wider variety of optimization algorithms, but Liblbfgs is more lightweight and focused specifically on L-BFGS.
GNU Scientific Library (GSL) – GSL is a massive numerical library that includes minimizers; Liblbfgs is a much smaller, dedicated dependency for L-BFGS.

Version History

Detected	Version	Rev	Change	Commit
Sep 11, 2025 10:43am		0	VERSION_BUMP	1cbe0396