[XeTeX] Converting math symbols via xetex

[Herbert Schulz]

On Aug 31, 2010, at 3:11 PM, Neil wrote:

> Sorry if this is a common question, I've searched high and low for the answer.
> 
> I am writing a scientific paper with math terminology. It would be
> nice to directly enter some math symbols directly into the
> text-editor. For example, the characters
> φ (lower case phi aka $\phi$)
> or
> ¬ (negation aka $\neg$)
> 
> It makes it clearer to read the source, I find.
> 
> My text file is UTF-8. If I run xelatex on my Mac 10.6, the resulting
> pdf does show the φ character, but not the ¬ character. I cannot
> understand why. My feeling is that it has something to do with
> font-mapping.  I've included my document header for reference.
> 
> thanks for any help.
> 
> XeTeX 3.1415926-2.2-0.9995.2 (TeX Live 2009)
> kpathsea version 5.0.0
> Copyright 2009 SIL International and Jonathan Kew.
> There is NO warranty.  Redistribution of this software is
> covered by the terms of both the XeTeX copyright and
> the Lesser GNU General Public License.
> For more information about these matters, see the file
> named COPYING and the XeTeX source.
> Primary author of XeTeX: Jonathan Kew.
> Compiled with ICU version 3.8.1 [with modifications for XeTeX]
> Compiled with zlib version 1.2.3; using 1.2.3
> Compiled with FreeType2 version 2.3.9; using 2.3.9
> Using Mac OS X Carbon, Cocoa & QuickTime frameworks
> 
> 
> %!TEX TS-program = xelatex
> %!TEX encoding = UTF-8 Unicode
> \documentclass{llncs}
> \usepackage{todonotes}
> \usepackage[no-math]{fontspec}
> \usepackage{xunicode}
> \usepackage{xltxtra}
> \setmainfont[Mapping=tex-text]{Times}
> %\usepackage{amsthm}
> \usepackage{color}
> \usepackage{booktabs}
> 
> \usepackage{graphicx}
> \newcommand{\slbl}[1]{\textbf{\textsf{#1}}}
> \usepackage{amsmath}%,amssymb}
> \usepackage{algpseudocode}
> \usepackage{algorithm}%,algorithmic-fix}
> \usepackage[pdfstartview=FitH,xetex,bookmarksopenlevel=3,bookmarks=true]{hyperref}
> %pdfpagescrop={92 112 523 778},
> 
> \begin{document}
> 

Howdy,

Are you sure that Times has the $\neg$ symbol?

I can only guess it doesn't since you don't give a minimal but compilable sample that shows the problem.

Also, you are using ``math terminology'' but no math?

Good Luck,

Herb Schulz
(herbs at wideopenwest dot com)