[texhax] Odd behavior of \check at mathfonts

[Philip Taylor (Webmaster)]

Michael Barr wrote:
> 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}