[texhax] Odd behavior of \check at mathfonts

[Philip G. Ratcliffe]

> > If you compile the following file
> 
> [snipped]
> > you will see that there is a spurious indentation in the 
> line following 
> > the first display, but not the second.  Is there a better 
> way of getting
>  > the mathfont recognized?
> 
> Here's my version, but it still uses an \hbox !
> Philip Taylor
> --------
> \documentclass {article}
> \newdimen \axis
> \setbox 0 = \hbox {\makeatletter \check at mathfonts \makeatother}
> \axis = \fontdimen 22 \textfont 2
> \begin {document}
> 
> $$e = mc^2$$
> xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx
> xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx
> xxx xxx
> $$e = mc^2$$
> xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx
> xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx xxx
> xxx xxx
> 
> \end {document}

This works too

\bgroup\makeatletter \check at mathfonts \makeatother\egroup

Cheers, Phil