[OS X TeX] superscripting

[ludwik kowalski]

On Feb 26, 2008, at 7:57 PM, Anthony Morton wrote:

> . . . Remember, for simple formulae you type them in pretty much as  
> you would in a casual email:
>
> 	y = 3x + x^2

For some reason this did not compile. But it did compile after I  
replaced 2 with {2}

Can someone explain to me why? I am using TexShop; the only frontend I  
know how to use.

The tiny source file is attached

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Ludwik Kowalski, a retired physisist
5 Horizon Road, apt.2702, Fort Lee, NJ, 07024, USA
Also an amateur journalist at http://csam.montclair.edu/~kowalski/cf/