What is MathQuill?

MathQuill is open source and originated as part of Khan Academy's tooling. It's now embedded in commercial assessment products. Students typing math answers into Knewton Alta or any Learnosity-based publisher platform are typing into a MathQuill widget that renders the equation in real time.

Because MathQuill is a JavaScript-rendered input rather than a regular HTML <input>, generic auto-fill tools that work on plain text fields fail on MathQuill. Tools that handle MathQuill correctly have to render LaTeX into MathQuill's internal AST and dispatch synthetic keystrokes.