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diff --git a/Master/texmf-dist/doc/latex/texpower/foilsdemo.tex b/Master/texmf-dist/doc/latex/texpower/foilsdemo.tex new file mode 100644 index 00000000000..fc2ff715a31 --- /dev/null +++ b/Master/texmf-dist/doc/latex/texpower/foilsdemo.tex @@ -0,0 +1,227 @@ +%% +%% This is file `foilsdemo.tex', +%% generated with the docstrip utility. +%% +%% The original source files were: +%% +%% texpower-doc.dtx (with options: `foilsdemo') +%% +%% -------------------------------------------------------------- +%% TeXPower bundle - dynamic online presentations with LaTeX +%% Copyright (C) 1999-2004 Stephan Lehmke +%% +%% This program is free software; you can redistribute it and/or +%% modify it under the terms of the GNU General Public License +%% as published by the Free Software Foundation; either version 2 +%% of the License, or (at your option) any later version. +%% +%% This program is distributed in the hope that it will be useful, +%% but WITHOUT ANY WARRANTY; without even the implied warranty of +%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +%% GNU General Public License for more details. +%% -------------------------------------------------------------- +%% +%% The list of all files belonging to the TeXPower bundle is +%% given in the file `00readme.txt'. +%% +\ProvidesFile{foilsdemo.tex}% + [2004/07/27 TeXPower example file] +%----------------------------------------------------------------------------------------------------------------- +% File: foilsdemo.tex +% +% Simple examples the for combining the foils class with the dynamic features provided by the package texpower.sty. +% +%----------------------------------------------------------------------------------------------------------------- +% Autor: Stephan Lehmke <Stephan.Lehmke@cs.uni-dortmund.de> +% +% v0.0.1 May 25, 2000: First version for the pre-alpha release of TeXPower. +% + +\documentclass[landscape]{foils} + +% foils understands the landscape option, but to get it through to pdflatex, we need to set \pdfpageheight etc. The +% package fixseminar does this. + +\usepackage{fixseminar} + +%----------------------------------------------------------------------------------------------------------------- +% The texpower package is loaded. +% We give the display option so dynamic features are enabled. +% +\usepackage[display]{texpower} + + +\begin{document} + +\title{The \code{texpower} Package\\{\normalfont \texttt{foils} Demo}} +\author{Stephan Lehmke\\\code{mailto:Stephan.Lehmke@cs.uni-dortmund.de}} +\maketitle + + +\foilhead{A list environment} + +% The \pause command `splits' the current page at the place it appears, producing two pages, one with everything which +% came before the \pause command, one containing this and additionally the stuff coming after \pause. When these pages +% are presented with acrobar reader in full screen mode (or any other viewer with this capability), the presentation +% will appear to `stop' at the point the \pause command was issued and `resume' in the moment the presenter switches to +% the next page. + +\pause + +% As \pause forces a paragraph break, it can not be used to separate a description label from the associated text. For +% this, we use the (very flexible) \stepwise command. Inside the argument of \stepwise, an arbitrary number of \step +% commands may occur. \stepwise will produce as many pages as there are \step commands, making the arguments of the +% \step commands appear ``one by one''. + +\stepwise +{% + \begin{description} + \item[foo.] \step{bar.} + \step{\item[baz.]} \step{qux.} + \end{description} + } + + + +\foilhead{An aligned equation} + +\pause + +% Normally for \stepwise, if a \step is not yet active, its argument is ignored completely. This would disturb +% alignments, because the width changes with every new activated \step. +% \parstepwise is a variant of \stepwise where the argument of an inactive \step is put into a \phantom, leaving the +% proper amount of white space. + +\parstepwise +{% + % Using eqnarray with equation numbers here means all equation numbers will be visible from the outset, because only + % the contents of the lines are `filled in'. See the full demo for an example of aligned equations where equation + % numbers `appear'. + \begin{eqnarray} + % + % When the argument of \step is put into a box (as it happens with \parstepwise), tabulators can not go in there. As + % we want the equals sign to appear at the same time as the right side of the equation, we use \restep for the + % latter. \restep is like \step, but it appears at the same time as the previous \step command. + % + \sum_{i=1}^{n} i & \step{=} & \restep{1 + 2 + \cdots + (n-1) + n}\\ + % + & \step{=} & \restep{1 + n + 2 + (n-1) + \cdots}\\ + % + & \step{=} & \restep + {% We can nest \step commands inside each other. The order of execution is just the + % order of appearance, independent of nesting. + % \switch is a variant of \step which takes two arguments and toggles between them on + % activation. This way, we can make the \underbrace `appear'. + % We insert a \vphantom in the first argument so that the equation numbers will be + % placed correctly whether or not the underbrace is didplayed. + \switch + {% + \vphantom{\underbrace{(1 + n) + \cdots + (1 + n)}_{\times\frac{n}{2}}}% + (1 + n) + \cdots + (1 + n)% + } + {\underbrace{(1 + n) + \cdots + (1 + n)}_{\times\frac{n}{2}}}% + } + \\ + % + % This is another nested application of \step. Note that the spacing of \cdot has to be corrected manually by + % inserting {} left of it, because otherwise it would behave like a prefix operator. + % + & \step{=} & \restep{\frac{(1 + n)\step{{}\cdot n}}{\restep{2}}} + \end{eqnarray} +} + + + + +\foilhead{An array} + +\stepwise +{% With arrays, beware of problems with automatic calculation of cell widths. + % + % If you want all widths to be calculated automatically, you need to use \parstepwise, with the consequence that + % a) tabulators or newlines can not go into the argument of \step, + % b) the array `structure' (rules) will be completely visible right from the beginning. + % + % If you want to use \stepwise for being able to build the `structure' (like \hilne's) dynamically (as done in the + % following), you have to make sure that the cell widths are correct from the very first line, because otherwise the + % array will expand horizontally, destroying the dynamic effect. This can be assured by + % a) using only p cells, + % b) making sure all the cells in the first line are at least as wide as the widest cell which will appear later. If + % you are using the calc package, this is easiest by putting \makebox[\widthof{widest entry}]{first entry} into + % the first cell. Otherwise, you can use \settowidth. + % + \begin{displaymath} + \begin{array}{rrrrr} + \step + {% + n & \log n & n\log n & \lefteqn{n^2}\phantom{25} & \lefteqn{2^n}\phantom{32} \\ + \hline% + }% + \step{0 &} \step{\textrm{---} &} \step{\textrm{---} &} \step{0 &} \step{1 \\}% + \step{1 &} \step{0\phantom{.6} &} \step{0\phantom{.8} &} \step{1 &} \step{2 \\}% + \step{2 &} \step{1\phantom{.6} &} \step{2\phantom{.8} &} \step{4 &} \step{4 \\}% + \step{3 &} \step{1.6 &} \step{4.8 &} \step{9 &} \step{8 \\}% + \step{4 &} \step{2\phantom{.6} &} \step{8\phantom{.8} &} \step{16 &} \step{16 \\}% + \step{5 &} \step{2.3 &} \step{11.6 &} \step{25 &} \step{32 }% + \end{array} + \end{displaymath} +} + + + + +\foilhead{A picture} + +\pause + +\begin{center}% + \stepwise + {% + \setlength{\unitlength}{1.6cm}% + \delimitershortfall-1sp% Just for the nested braces + \begin{picture}(14,2) + \put(0,1){\vector(1,0){1}} + \put(0.5,0.5){\makebox(0,0){\small $x(t)$}} + \put(13,1){\vector(1,0){1}} + \put(13.5,0.5){\makebox(0,0){\small $y(t)$}} + \step + { + \put(1,1){\line(3,2){1.5}} + \put(1,1){\line(3,-2){1.5}} + \put(2.5,0){\line(0,1){2}} + \put(2,1){\makebox(0,0){\large $\varphi$}} + } + \step + { + \put(2.5,1){\vector(1,0){3.5}} + \put(4.25,0.5){\makebox(0,0){\small $F_t = \varphi\left(x(t)\right)$}} + } + \step + { + \put(6,0){\framebox(2,2){\large $\Phi$}} + } + \step + { + \put(8,1){\vector(1,0){3.5}} + % + % Here, we find another nested use of \step inside \step. + % \bstep is a variant of \step which _always_ puts its argument into a box for leaving the correct amount of + % white space. We cannot use \parstepwise here because \put can't go into a box. Hence, just using \step for + % building the nested formula on the next line would give the wrong size for the nested braces. + % + \put(9.75,0.5){\makebox(0,0){\small $G_t = \Phi\left(\bstep{\varphi\left(\bstep{x(t)}\right)}\right)$}} + } + \step + { + \put(13,1){\line(-3,2){1.5}} + \put(13,1){\line(-3,-2){1.5}} + \put(11.5,0){\line(0,1){2}} + \put(12,1){\makebox(0,0){\large $\delta$}} + } + \end{picture}% + }% +\end{center}% +\end{document} +\endinput +%% +%% End of file `foilsdemo.tex'. |