new latex package boldtensors (3jul07)

git-svn-id: svn://tug.org/texlive/trunk@4621 c570f23f-e606-0410-a88d-b1316a301751

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diff --git a/Master/texmf-dist/doc/latex/boldtensors/boldtensors.pdf b/Master/texmf-dist/doc/latex/boldtensors/boldtensors.pdf
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diff --git a/Master/texmf-dist/doc/latex/boldtensors/boldtensors.tex b/Master/texmf-dist/doc/latex/boldtensors/boldtensors.tex
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+%%
+%% Description of the LaTeX package `boldtensors'
+%%
+%% This program can be redistributed and/or modified under the
+%% terms of the GNU Public License, version 2.
+%%
+%% 2007/06/29
+%% Author: Werner Fink <werner@suse.de>
+%%
+\documentclass{ltxdoc}
+\usepackage[utf8]{inputenc}
+\usepackage{amsmath}
+\usepackage[nabla,differential]{boldtensors}
+\title{The `Boldtensors'\ style file}
+\author{%
+\copyright\ 1995 by Werner Fink and Jürgen Bachteler\and
+\copyright\ 2007 by Werner Fink}
+\date{June 29, 2007}
+\nofiles
+\parindent0em
+\parskip1ex
+\begin{document}
+\maketitle
+\thispagestyle{empty}
+The \LaTeX{} style file `Boldtensors'\ provides
+within standard \verb|\mathversion{normal}| (the \verb|\unboldmath|
+environment) latin and greek characters in bold and blackboard
+layout.  With the style option \verb|nabla| also the Nabla operator
+$\nabla$ is available in bold layout.  For the unit tensor
+and null tensor a bold `$~1$' and bold `$~0$' are provided.
+A second option \verb|differential| let the character
+`$d$' behave like an ordinary operator in roman layout.
+
+The major advantage is that subscripts, indices and accents
+can be used without any layout problems.   Any index or
+subscript will be placed nearby on the bold/blackboard
+symbol accordingly to the layout/formating rules defined
+in the used fonts.
+   
+The usage is simple \verb|$~T$| and \verb|$"R$|.  The first
+just prints a bold $~T$ which denotes a tensor independent
+from its components $T_{ij}$ within an arbitrary chosen
+orthonormal base.  The second example shows a blackboard
+bold $"R$ for the real numbers sometimes written as
+\verb|$\mathrm{I\!R}$| but looks like `$\mathrm{I\!R}$'.\@
+
+Some more examples:
+\begin{verbatim}
+\documentclass{article}
+\usepackage{amsmath}
+\usepackage[differential]{boldtensors}
+\begin{document}
+\begin{math}
+ds^2 = g_{\alpha\beta}dx^{\alpha}dx^{\beta}
+\end{math}
+\end{document}
+\end{verbatim}
+\begin{math}
+ds^2 = g_{\alpha\beta}dx^{\alpha}dx^{\beta}
+\end{math}
+\begin{verbatim}
+\documentclass{article}
+\usepackage{amsmath}
+\usepackage{boldtensors}
+\begin{document}
+\begin{math}
+~G = \frac{8 \pi G}{c^4} ~T
+\end{math}
+\end{document}
+\end{verbatim}
+\begin{math}
+~G = \frac{8 \pi G}{c^4} ~T
+\end{math}
+%
+% Just the end
+%
+\end{document}