[texhax] Equation problem

[Peter Flom]

Hello

This one has me stumped......

When I typeset

\documentclass{article}
\usepackage{amsmath, amssymb, latexsym, amsthm}
\begin{document}
\begin{equation}
 r_{q,i}=\phi^{-1}\left{F(y_i;\hat{\mu},\hat{\phi})\right}
\end{equation}
\end{document}

I get an error that there is a missing { right after the first \phi,
but I see the delimiter right there.
But if I typeset just the equation, using WinEdt shift ctrl c, the
equation looks fine.

Using proTeXt on a Windows machine with WinEdt.


TIA

Peter

Peter L. Flom, PhD
Assistant Director, Statistics and Data Analysis Core
Center for Drug Use and HIV Research
National Development and Research Institutes
71 W. 23rd St
http://cduhr.ndri.org
www.peterflom.com
New York, NY 10010
(212) 845-4485 (voice)
(917) 438-0894 (fax)