From the live demo: Kids, DON'T type stuff like Sin^2[x] instead of Sin[x]^2, as I did by mistake. (Open up this cell for more trivia.)

(I wonder, just what in the world does Matt think 2[x] actually is?)

Not even is what you want it to be.

Here is what you really want:

This is the same as

Now if you insist, you could probably teach Matt that means , but I don't recommend it.

But you never heard it from me.