# Install ibex with Homebrew

C++ library for constraint processing over real numbers. Version 2.9.1 via Homebrew; verified from local package data.

## Install

```sh
sudo av install brew:ibex
```

Additional install commands:

### macOS

- Homebrew (100%):

```sh
brew install ibex
```

  Evidence: local Homebrew formula metadata

## Package facts

- **Package key:** brew:ibex
- **Package manager:** Homebrew
- **Version:** 2.9.1
- **Source summary:** C++ library for constraint processing over real numbers
- **Homepage:** <https://ibex-team.github.io/ibex-lib/>
- **Repository:** <https://github.com/ibex-team/ibex-lib>
- **Generated:** 2026-08-03T19:37:03+00:00

## Executables

- ibexopt (alias)
- ibexsolve (alias)

## Install behavior

- Bottle: not available

## Freshness

- Page generated: 2026-08-03
- Package-manager version: 2.9.1
## Project history and usage

IBEX is a C++ numerical library for interval arithmetic and constraint programming over real numbers, distributed with command-line tools such as IbexSolve and IbexOpt.

### Project history

The IBEX documentation describes the library as a layered toolkit: symbolic-numeric interval calculations, contractor programming, and system solving or global optimization. The documentation copyright line spans 2007-2020 under IMT Atlantique, while the GitHub repository records release tags from the 1.x series through the 2.x series.

### Adoption history

IBEX is a specialist scientific-computing package rather than a mass-market developer tool. Its adoption is visible through the maintained documentation site, GitHub releases, Homebrew packaging, and the presence of solver executables that let users try interval methods without embedding the C++ API first.

### How it is used

Users apply IBEX to constraint satisfaction, set characterization, interval computations, contractor-based pruning, and global optimization. The docs emphasize reliable characterization with boxes and account for uncertainty sources such as floating-point approximation, round-off error, model uncertainty, and measurement noise.

### Why package nerds care

IBEX matters to package nerds because it is a rare Homebrew formula in the rigorous numerical-constraint niche: it packages both a C++ library and solver CLIs, pulls in parser/build dependencies such as Bison, Flex, CMake, and pkgconf, and exposes a domain-specific modeling language, Minibex.

### Timeline

- 2007-2020: The published documentation carries an IMT Atlantique copyright range.
- ibex-1.19: The repository contains a release tag for the 1.x line.
- ibex-2.0.x: The repository tag history shows the transition to the 2.x line.
- 2025: The GitHub releases page lists v2.9.1 as an April 2025 release.

### Related projects

- The documentation says IBEX relies on third-party interval arithmetic libraries such as Gaol or Filib depending on platform, and it points to plugins or packages for affine arithmetic, AMPL compatibility, and semi-infinite programming.

### Sources

- <https://formulae.brew.sh/formula/ibex>
- <https://github.com/ibex-team/ibex-lib>
- <https://github.com/ibex-team/ibex-lib/releases>
- <https://ibex-team.github.io/ibex-lib/>
- <https://ibex-team.github.io/ibex-lib/intro.html>


## Security Notes

library-like package without higher-risk signals.

- **Geiger risk:** green / low
- library-like package without higher-risk signals


## Combined YAML source

View the package source record on GitHub. [combined/ibex.yml](https://github.com/mxcl/pkgdb/blob/main/combined/ibex.yml)


## Sources

- pkg.so package database
- Geiger risk classifier
- curated package history
- pkgdb category and tag curation
- cross-ecosystem install command graph