ensmallen ☆

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Description:
Flexible C++ library for efficient mathematical optimization

Type: Formula | Latest Version: 3.11.0@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: c++ optimization math numerical library

Install: brew install ensmallen

About:
Ensmallen is a fast, flexible C++ library for numerical optimization. It provides a simple and consistent API for various optimization algorithms, including gradient descent and coordinate descent. The library is designed to integrate seamlessly with Armadillo for high-performance linear algebra operations.

Key Features:

Header-only C++ library for easy integration
Simple and unified API for various optimizers
High performance with support for Armadillo matrices
Extensive suite of optimization algorithms

Use Cases:

Machine learning model training and parameter fitting
Solving large-scale numerical optimization problems
Research and prototyping of new optimization algorithms

Alternatives:

dlib – dlib is a larger, more comprehensive toolkit that includes optimization alongside other ML and computer vision tools, while ensmallen is a focused, lightweight library specifically for optimization.
NLopt – NLopt is a library for nonlinear optimization with a C API; ensmallen provides a modern C++-native interface and is designed for integration with Armadillo.

License: BSD-3-Clause

Dependencies: armadillo

Bottles available for: all

Version History

Detected	Version	Rev	Change	Commit
Dec 16, 2025 5:05pm		0	VERSION_BUMP	7056178f
Sep 30, 2025 9:15pm		0	VERSION_BUMP	1a12042a