Here's a quick video introducing keyboard shortcuts in the Desmos Graphing Calculator (https://www.desmos.com/calculator).
You can find more how-to videos, as well as our collection of interactive tours, at http://learn.desmos.com.
List of shortcuts: http://support.desmos.com/hc/en-us/ar...
Shortcut challenges: https://student.desmos.com/?prepopula...
