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@khanacademy/math-input

v19.1.0

Published

24 days ago

Khan Academy's new expression editor for the mobile web.

Downloads

6,804

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math-input

Khan Academy's expression editor for the mobile web. Used in the Perseus exercise framework to power math input and expression editing on small screens.

Built with React, MathQuill, Aphrodite, and more.

Try it yourself on Khan Academy. (Note: you'll need to enable mobile emulation, if you're accessing the site from a desktop browser.)

Getting started

Clone the project: git clone [email protected]:Khan/math-input.git
Install dependencies: yarn install
Start the development server: yarn start

When you start the project you'll need to be on a device that supports touch or touch emulation to see the keyboard. The easiest way to get started is open the developer tools on Google Chrome.

Supported Features

Multiple keypad configurations, so as to accommodate a range of input types (i.e., fractions/mixed numbers, algebraic expressions).
Multi-page keypads, with swipeable page navigation.
Touch-and-drag interactions (as supported by the stock iOS and Android keypads).
A draggable cursor with a detached handle, for fine-grained control on touch devices.
Custom state transitions for the editing experience, to streamline expression entry.

License