[XeTeX] escaping the pipe

[Wilfred van Rooijen]

Please note the following: when using math, it can be beneficial to use the \left and \right for opening/closing braces, brackets, curlies, what have you. The \left and \right versions will automatically shrink and grow to the size of the enclosed material. See the following (extreme) example.

Wilfred


\documentclass[11pt,a4paper,oneside,draft,article]{memoir}
\usepackage{amsmath}

%-----------------------------------------------------------------------------
%
%------------------------------------------------------------------------------
\begin{document}

\begin{equation}
  \lbrace \frac{\sqrt{\frac{1}{2}}}{\sqrt[3]{\frac{3}{4}}} \rbrace, \quad
  \left\lbrace \frac{\sqrt{\frac{1}{2}}}{\sqrt[3]{\frac{3}{4}}} \right\rbrace
\end{equation}

\end{document}


--- On Wed, 3/3/10, hh <hh-brasil at bol.com.br> wrote:

> From: hh <hh-brasil at bol.com.br>
> Subject: Re: [XeTeX] escaping the pipe
> To: "Unicode-based TeX for Mac OS X and other platforms" <xetex at tug.org>
> Date: Wednesday, 3 March, 2010, 10:18 AM
> There are the tex-commands "\lbrace"
> and "\rbrace" for problems like 
> this.
> hh
> 
> Date sent:          Tue, 02
> Mar 2010 19:46:30 -0500
> From:       
>        maxwell <maxwell at umiacs.umd.edu>
> To:         
>        Unicode-based TeX for
> Mac OS X and other platforms 
> <xetex at tug.org>
> Subject:           
> [XeTeX] escaping the pipe
> Send reply to:      Unicode-based TeX
> for Mac OS X and other platforms 
> <xetex at tug.org>
>     <mailto:xetex-request at tug.org?subject=unsubscribe>
>     <mailto:xetex-request at tug.org?subject=subscribe>
> 
> > This has to be simple, but nothing I've tried works,
> and I can't seem to
> > find any ideas on-line...
> > 
> > I want to output something like
> >    a {b|c} d
> > from XeLaTeX.  I've managed to get part way there
> by escaping the curly
> > braces in the input, but I can't figure out how to
> escape the pipe
> > character.  That is, if I try
> >    a \{a|b\} d
> > (i.e. without escaping the pipe), then the pipe
> overwrites the 'a' to its
> > left.  Or if I try
> >    a \{a\|b\} d
> > then XeLaTeX apparently tries to interpret the pipe
> character as a
> > command, which of course it doesn't know how to
> do.  I even tried
> >    a \{a\\|b\} d
> > in which case the pipe looks right, but I get a
> newline immediately after:
> >    a {b|
> > c} d
> > 
> > I don't think it matters, but this is inside a
> \begin{alltt} environment.
> > 
> > Surely there's an easy way to do this?
> > 
> >    Mike Maxwell
> > 
> > 
> > 
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