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Diffstat (limited to 'info/examples/Math-E/09-09-2.ltx')
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diff --git a/info/examples/Math-E/09-09-2.ltx b/info/examples/Math-E/09-09-2.ltx new file mode 100644 index 0000000000..ae54230bbb --- /dev/null +++ b/info/examples/Math-E/09-09-2.ltx @@ -0,0 +1,39 @@ +%% +%% An UIT Edition example +%% +%% Example 09-09-2 on page 175. +%% +%% Copyright (C) 2010 Herbert Voss +%% +%% It may be distributed and/or modified under the conditions +%% of the LaTeX Project Public License, either version 1.3 +%% of this license or (at your option) any later version. +%% +%% See http://www.latex-project.org/lppl.txt for details. +%% +%% +%% ==== +% Show page(s) 1 +%% +\documentclass[]{exaarticle} +\pagestyle{empty} +\setlength\textwidth{375.57637pt} +\AtBeginDocument{\setlength\parindent{0pt}} +\setcounter{equation}{3} +\renewcommand\theequation{9.\arabic{equation}} +\StartShownPreambleCommands +\usepackage{cases} +\StopShownPreambleCommands +\begin{document} +\begin{subnumcases}{\label{w} w\equiv} + 0 & $c = d = 0$\label{wzero}\\ + \sqrt{|c|}\,\sqrt{\frac{1 + \sqrt{1+(d/c)^2}}{2}} & $|c| \geq |d|$ \\ + \sqrt{|d|}\,\sqrt{\frac{|c/d| + \sqrt{1+(c/d)^2}}{2}} & $|c| < |d|$ +\end{subnumcases} +\begin{subnumcases}{\sqrt{c+id}=} + 0 & $w=0$ (case \ref{wzero}) \\ + w+i\frac{d}{2w} & $w \neq 0$, $c \geq 0$ \\ + \frac{|d|}{2w} + iw \qquad & $w \neq 0$, $c < 0$, $d \geq 0$\\ + \frac{|d|}{2w} - iw \qquad & $w \neq 0$, $c < 0$, $d < 0$ +\end{subnumcases} +\end{document} |