> On Sat, Feb 07, 2009 at 03:45:45PM -0800, John Wheeler wrote: > > [snip] > > You'll get incorrect spacing. Compare: > > [snip] I think what you're looking for is this: $$ \left.\frac12\middle/\frac12\right. $$ The command \middle was mentioned in threasd ("parenthesis problem in LaTeX") a couple of weeks ago. Cheers, Phil