Numbat is a statically typed programming language for scientific computations with first class support for physical dimensions and units.
It is a continuation of insect.
This is free and open source software.
Key Features
- Physical dimensions as types – static type system where physical dimensions like Length and Time act as types.
- First-class physical units – focused on computations with units. Units are therefore treated as first-class citizens.
- Comprehensive standard library – comes with a large number of physical dimensions and units (SI, US Customary, Imperial, Nautical, Astronomical, Atomic, Nuclear, …).
- Strict syntax – parser never tries to be “smart” on syntactically incorrect input. This means you will either get a (descriptive) error message, or you can trust the result of your calculation.
- Excellent error messages – aims to provide descriptive and helpful error messages.
- Interactive terminal – interactive use-case with small “one off” computations.
- Modular and customizable
- Assertions – provides an assert_eq procedure that allows you to check for exact equality
Website: numbat.dev
Support: GitHub code repository
Developer: David Peter
License: MIT License or Apache License 2.0

Numbat is written in Rust. Learn Rust with our recommended free books and free tutorials
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Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

