Look at the output of the E=mc^2 example. Why are E , m , and c in italics, but the "2" is not?

Question

Look at the output of the  E=mc^2  example. Why are  E ,  m , and  c  in italics, but the "2" is not?

Accepted Answer

By convention, math variables are italicized, while numbers and operators are not.

Answer

Because the "2" was typed as  $2$  and "E" was typed as  $	extit{E}$ .

Answer

Because the "2" is a superscript, and superscripts are never italic.

Answer

It's an error in the output; the "2" should also be in italics.

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