Looking at the Microsoft commercial for the Surface 3 at time 0:37 the student is plotting/graphing the 3 math functions on the left. I believe she is using OneNote. How is this done? Thanks, Bill B.

Yes, that was OneNote. Using the Insert Tab...Equation Drop Down, also after inking an equation you have the ability to convert ink to math by lassoing the inking and right clicking....

Thank you. So I don't need to install the Mathematics Add-in. I should have looked before. I can't find the graph function? Thanks, again. Bill B