[whatwg] [HTML5] Editorial: 3.10.18. The |sup| and |sub| elements

[Matthew Paul Thomas]

On Nov 1, 2006, at 1:32 PM, Christoph Päper wrote:
>
> The second to last example should probably better read:
>
>   <var>E</var> = <var>m</var> · <var>c<var><sup>2</sup>
>
> or maybe, as the speed of light is a constant,
>
>   <var>E</var> = <var>m</var> · c<sup>2</sup>.
> ...

Is that equation ever legitimately rendered (in physics textbooks etc) 
with the "m" in a different style from the "c"? If not, perhaps the 
definition of <var> needs to be expanded to include physical constants.

-- 
Matthew Paul Thomas
http://mpt.net.nz/