FW: [texhax] differences between \frac and \over

[Philip G. Ratcliffe]

> I was wondering if anyone knew the internal differences between
> 
> \frac{1}{2}
> 
> and
> 
> {1 \over 2}
> 
> because they appear to be visually identical.

latex.ltx contains

\def\frac#1#2{{\begingroup#1\endgroup\over#2}}

Cordialmente,  Philip G. Ratcliffe
-----------------------------------------
Professor of Nuclear & Subnuclear Physics
Dipartimento di Fisica e Matematica
Universita degli Studi dell'Insubria
via Valleggio 11
22100 Como (CO)
Italy

Tel. +39 (031) 238.6231
Fax  +39 (031) 238.6119
Cell +39 (340) 2346580
Web  http://www.unico.it/~pgr
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