The \apex command isn't working in LaTeX

[Sean Fitzpatrick]

I can't seem to get Greg's macro for the fancy APEX to work.

Macro:

\newcommand{\apex}{A\kern -1pt \lower -2pt\mbox{P}\kern -4pt \lower .7ex\mbox{E}\kern -1pt X}

If I do \(\apex\) or \apex\ (and I've tried this in a test article as well) I get the error below.

This is the macro exactly as it appears in the APEX_format.sty file.

Oddly enough, I think it worked ok in MathJax.

! A <box> was supposed to be here.

<to be read again>

\unhbox

l.112 \apex

\

I was expecting to see \hbox or \vbox or \copy or \box or

something like that. So you might find something missing in

your output. But keep trying; you can fix this later.

[Sean Fitzpatrick]

Replacing \mbox in the macro definition with \hbox seems to fix it.

[gregory...@gmail.com]

Huh - that's weird. I looked at the V4 apex_format.sty file and it uses an hbox, not an mbox. Not sure how/why it got changed.