Roblox Lua Math Library Extensions Guide

Roblox math library extensions lua are basically the secret sauce for anyone who's moved past the "hello world" stage and started building actual games. If you've been scripting on Roblox for more than a week, you've probably realized that the standard math library provided by Luau is well, it's a bit basic. It gives you the essentials like sines, cosines, and square roots, but when you're trying to calculate a smooth camera sway or map a health bar's percentage to a specific UI width, you quickly find yourself writing the same helper functions over and over again. That's exactly where custom extensions come into play. ...

January 25, 2026 · 7 min · Andersen Stuart