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authorKarl Berry <karl@freefriends.org>2010-10-12 00:13:11 +0000
committerKarl Berry <karl@freefriends.org>2010-10-12 00:13:11 +0000
commit324e3ca487267e4d60094b29bda9e562fa489803 (patch)
treedbd69d6b00ea2a4e15e9635522b20b6cb9aeae7b /Master/texmf-dist/doc/latex/math-e/10-03-1.ltx
parent308e7e96ccb036e76b8e07e4e980394f50977580 (diff)
new doc package math-e (11oct10)
git-svn-id: svn://tug.org/texlive/trunk@20062 c570f23f-e606-0410-a88d-b1316a301751
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+%%
+%% An UIT Edition example
+%%
+%% Example 10-03-1 on page 202.
+%%
+%% 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}}
+\StartShownPreambleCommands
+\usepackage{amsmath}
+\StopShownPreambleCommands
+\begin{document}
+\[
+\begin{array}{rcll}
+y & = & x^{2}+bx+c\\
+ & = & x^{2}+2\times\dfrac{b}{2}x+c\\
+ & = & \underbrace{x^{2}+2\times\dfrac{b}{2}x+\left(\frac{b}{2}\right)^{2}}-
+ {\left(\dfrac{b}{2}\right)^{2}+c}\\
+ & & \qquad\left(x+{\dfrac{b}{2}}\right)^{2}\\
+ & = & \left(x+\dfrac{b}{2}\right)^{2}-\left(\dfrac{b}{2}\right)^{2}+c
+ & \left|+\left({\dfrac{b}{2}}\right)^{2}-c\right.\\
+ y+\left(\dfrac{b}{2}\right)^{2}-c & = & \left(x+
+ \dfrac{b}{2}\right)^{2} & \left|\strut(\textrm{vertex form})\right.\\
+y-y_{S} & = & (x-x_{S})^{2}\\
+S(x_{S};y_{S}) & \,\textrm{or}\,
+ & S\left(-\dfrac{b}{2};\,\left(\dfrac{b}{2}\right)^{2}-c\right)
+\end{array}
+\]
+\end{document}