blob: 6e500377f33ac0a2cd14d57d690eff207ab194a4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example 8-2-28 on page 484.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%% Johannes Braams, David Carlisle, and Chris Rowley
%%
%% 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.
%%
\documentclass{ttctexamargin}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.0pt}
\StartShownPreambleCommands
\usepackage[leqno]{amsmath}
\StopShownPreambleCommands
\begin{document}
\begin{gather} \raisetag{-10pt}
\text{The sign function: \ }
\mathcal{S}(x) = \begin{cases}
-1 & x < 0 \\
0 & x = 0 \\
1 & x > 0
\end{cases}
\end{gather}
\end{document}
|
