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Hi,<br>
<br>
I have a problem with the characters \| when they are used with
commands like \bigl \bigr or \left \right.<br>
Acrobat shows them erratically and prints them erratically. gv/xpdf
shows them OK.<br>
I prepare a book and most probably the publisher will not use
ghostscript or xpdf <span class="moz-smiley-s1"><span> :-) </span></span>.<br>
I attach a small pdf that shows the problem (my acrobat is 9.5.4
01/09/2013 on linux).<br>
Below I have the code and a screenshot in case your acroread shows
it correctly.<br>
<br>
thanks for any help,<br>
<br>
Antonis.<br>
<br>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>
\documentclass{article}<br>
\usepackage{fontspec} <br>
\defaultfontfeatures{Ligatures=TeX,Scale=.92}<br>
\usepackage{xltxtra}<br>
\setmainfont{LucidaBrightOT.otf}<br>
\usepackage{unicode-math}<br>
\setmathfont{LucidaBrightMathOT.otf}<br>
\begin{document}<br>
$$\|\sum_{n=N+1}^M x_n\|$$<br>
$$\bigl\|\sum_{n=N+1}^M x_n\bigr\|$$<br>
$$\Bigl\|\sum_{n=N+1}^M x_n\Bigr\|$$<br>
$$\biggl\|\sum_{n=N+1}^M x_n\biggr\|$$<br>
$$\Biggl\|\sum_{n=N+1}^M x_n\Biggr\|$$<br>
$$\left\|\sum_{n=N+1}^M x_n\right\|$$<br>
\end{document}<br>
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<br>
<br>
<img alt="" src="cid:part1.05090105.07090703@gmail.com"
moz-do-not-send="false" height="950" width="272"><br>
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