The Math Expression plugin for Bubble.io allows you to perform real-time mathematical calculations directly within your app using the powerful math.js engine. Whether you're building calculators, data-driven forms, dynamic logic evaluators, or math-based workflows, this plugin gives you a simple interface to process complex expressions like 2 + 3(5^2), sqrt(16) + sin(pi / 2), or log(100) / 2.
The plugin includes a single element where you input any valid math expression as plain text. It then evaluates the expression and returns a single numeric result through an exposed state called result. The plugin supports standard arithmetic operations, parentheses, constants like pi and e, and functions like sqrt, sin, cos, and log.

This is ideal for creating responsive calculators, validating numeric input, or enabling dynamic formulas without writing code. Lightweight, fast, and flexible — perfect for both simple and advanced use cases.