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-% $Header: /cvsroot/latex-beamer/latex-beamer/doc/beamerug-tutorial.tex,v 1.12 2005/04/04 15:27:09 tantau Exp $
-
-% Copyright 2003, 2004 by Till Tantau <tantau@users.sourceforge.net>.
-%
-% This program can be redistributed and/or modified under the terms
-% of the GNU Public License, version 2.
-
-\section{Tutorial: Euclid's Presentation}
-\label{section-tutorial}
- 
-This section presents a short tutorial that focuses on those features
-of \beamer\ that you are likely to use when you start using
-\beamer. It  leaves out all the glorious details that are explained
-in great detail later on.
-
-
-
-\subsection{Problem Statement}
-
-We wish to help Prof.\ Euclid of the University of Alexandria to
-create a presentation on his latest discovery: There are 
-infinitely many prime numbers! Euclid wrote a paper on this and it got
-accepted at the 27th International Symposium on Prime Numbers $-280$
-(ISPN~'80). Euclid wishes to use the \beamer\ class
-to create a presentation for the conference.
-On the conference webpage he found out that he will have twenty
-minutes for his talk, including questions.
-
-
-\subsection{Solution Template}
-
-The first thing Euclid should do is to look for a solution template
-for his presentation. Having a look at
-Section~\ref{section-solutions}, he finds that the file
-\begin{verbatim}
-beamer/solutions/conference-talks/conference-ornate-20min.en.tex
-\end{verbatim}
-might be appropriate. He creates a subdirectories |presentation| in
-the directory that contains the actual paper and copies the solution
-template to this subdirectory, renaming to |main.tex|.
-
-\lyxnote
-If Euclid uses \LyX, he would choose ``New from template'' and pick
-the template file 
-\begin{verbatim}
-beamer/solutions/conference-talks/conference-ornate-20min.en.lyx
-\end{verbatim}
-
-He opens the file in his favorite editor. It starts
-\begin{verbatim}
-\documentclass{beamer}
-\end{verbatim}
-which Euclid finds hardly surprising. Next comes a line reading 
-\begin{verbatim}
-\mode<presentation>
-\end{verbatim} 
-which Euclid does not understand. Since he finds more stuff in the file
-that he does not understand, he decides to ignore all of that for time
-being, hoping that it all serves some good purpose. 
-
-
-\subsection{Title Material}
-
-The next thing that seems logical is the place where the |\title|
-command is used. Naturally, he replaces it with
-\begin{verbatim}
-\title{There Is No Largest Prime Number}
-\end{verbatim} 
-since this was the title of the paper. He sees that the command
-|\title| also takes an optional ``short'' argument in square brackets,
-which is shown in places where there is little space, but he decides
-that the title is short enough by itself.
-
-Euclid next adjusts the |\author| and |\date| fields as follows:
-\begin{verbatim} 
-%\author{Euclid of Alexandria}
-%\date[ISPN '80]{27th International Symposium of Prime Numbers}
-\end{verbatim} 
-For the date, he felt that the name was a little long, so a short 
-version is given (|ISPN '80|). On second thought, Euclid decides to
-add his email address and replaces the |\author| field as follows:
-\begin{verbatim}
-%\author[Euclid]{Euclid of Alexandria \\ \texttt{euclid@alexandria.edu}}
-\end{verbatim}
-Somehow Euclid does not like the fact that there is no ``|\email|''
-command in \beamer. He decides to write an email to \beamer's author,
-asking him to fix this, but postpones this for later when the
-presentation is finished. 
-
-There are two fields that Euclid does not know, but whose meaning he
-can guess: |\subtitle| and |\institute|. He adjusts them. (Euclid does
-not need to use the |\and| command, which is 
-used to separate several authors, nor the |\inst| command, which just
-makes its argument a superscript).
-
-\lyxnote
-In \LyX, Euclid just edits the first lines having of the different
-styles like Author or Title or Date. He deletes the optional short
-fields.
-
-
-\subsection{The Title Page Frame}
-
-The next thing in the file that seems interesting is where the first
-``frame'' is created, right after the |\||begin{document}|:
-
-\begin{verbatim}
-\begin{frame}
-  \titlepage
-\end{frame}
-\end{verbatim}
-
-In \beamer, a presentation consists of a series of frames. Each frame
-in turn may consist of several slides (if there is more than one, they
-are called overlays). Normally, everything between |\begin{frame}|
-  and |\end{frame}| is put on a single slide. No page breaking is
-performed. So Euclid infers that the first frame is ``filled'' by the
-title page, which seems quite logical.
-
-\lyxnote
-The title page frame is created automatically by \LyX. All other
-frames start with the style BeginFrame and end either with the style
-EndFrame or, automatically, with the start of the next frame,
-subsection, or section. 
-
-
-\subsection{Creating the Presentation PDF File}
-
-Eager to find out how the first page will
-look, he invokes |pdflatex| on his file |main.tex| (twice). He could
-also use |latex| (twice), followed by |dvips|, and then possibly
-|ps2pdf|. Then he uses the Acrobat Reader or |xpdf| to view the
-resulting |main.pdf|. Indeed, the first page contains all the
-information Euclid has provided until now. It even looks quite
-impressive with the colorful title and the rounded corners and the
-shadows, but he is doubtful whether he should leave it like that. He
-decides to address this problem later.
-
-Euclid is delighted to find out that clicking on a section or
-subsection in the navigation bar at the tops hyperjumps there. Also,
-the small symbols at the bottom seem to be clickable. Toying around
-with them for a while, he finds that clicking on the arrows left or
-right of a symbols hyperjumps him backward or forward one slide~/
-frame~/ subsection~/ section. Clicking on the left or right side of
-the symbol hyperjumps to the beginning or end of the frame~/
-subsection~/ section. He finds the symbols quite small, but decides
-not write an email to \beamer's author since he also thinks that
-bigger symbols would be distracting.
-
-\lyxnote
-Euclid chooses View $\to$ PDF to view the resulting presentation. On a
-slow machine, this may take a while. See Section~\ref{section-speedup}
-for ways of speeding up the compilation.
-
-
-\subsection{The Table of Contents}
-
-The next frame contains a table of contents:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{Outline}
-  \tableofcontents
-\end{frame}
-\end{verbatim}
-Furthermore, this frame has an individual title (Outline). A comment
-in the frame says that Euclid might wish to try to add the
-|[pausesections]| option. He tries this, changing the frame to:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{Outline}
-  \tableofcontents[pausesections]
-\end{frame}
-\end{verbatim}
-After re-pdf\LaTeX ing the presentation, he finds that instead of a
-single slide, there are now two ``table of contents slides'' in the
-presentation. On the first of these, only the first section is shown,
-on the second both sections are shown (scanning down in the file,
-Euclid finds that, indeed, there are |\section| commands introducing
-these sections). The effect of the |pausesections| seems to be that
-one can talk about the first section before the second one is
-shown. Then, Euclid can press the down- or right-key, to show the
-complete table of contents and can talk about the second section.
-
-
-\subsection{Sections and Subsections}
-
-The next commands Euclid finds are
-\begin{verbatim}
-\section{Motivation}
-\subsection{The Basic Problem That We Studied}
-\end{verbatim}
-These commands are given \emph{outside} of frames. So Euclid assumes
-that at the point of invocation they have no direct effect, they only
-create entries in the table of contents. Having a ``Motivation''
-section seems reasonable to Euclid, but he changes the |\subsection|
-title.
-
-As he looks at the presentation, he notices that his assumption was
-not quite true: each |\subsection| command seems to insert a frame
-containing a table of contents into the presentation. Doubling back he
-finds the command that causes this: The |\AtBeginSubsection| inserts a
-frame with only the current subsection hilighted at the beginning of
-each section. If Euclid does not like this, he can just delete the
-whole |\AtBeginSubsection| stuff and the table of contents at the
-beginning of each subsection disappear. 
-
-The |\section| and |\subsection| commands take optional short
-arguments. These short arguments are used whenever a short form of the
-section of subsection name is needed. While this is in keeping with
-the way \beamer\ treats the optional arguments of things like
-|\title|, it is \emph{different} from the usual way \LaTeX\ treats an
-optional argument for sections (where the optional argument dictates
-what is shown in the table of contents and the main argument dictates
-what is shown everywhere else; in \beamer\ things are exactly the
-other way round).
-
-
-
-\subsection{Creating a Simple Frame}
-
-Euclid then modifies the next frame, which is the first ``real'' frame
-of the presentation, as follows:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{What Are Prime Numbers?}
-  A prime number is a number that has exactly two divisors. 
-\end{frame}
-\end{verbatim}
-This yields the desired result. It might be a good idea to put some
-emphasis on the object being defined (prime numbers). Euclid tries
-|\emph| but finds that too mild an emphasis. \beamer\ offers the
-command |\alert|, which is used like |\emph| and, by default, typesets
-its argument in bright red.
-\lyxnote
-The |\alert| command needs to be entered in \TeX-mode, which is
-awkward. It's easier to just paint the text in red.
-
-Next, Euclid decides to make it even clearer that he is giving a
-definition by putting a |definition| environment around the
-definition. 
-\begin{verbatim}
-\begin{frame}
-  \frametitle{What Are Prime Numbers?}
-  \begin{definition}
-    A \alert{prime number} is a number that has exactly two divisors.
-  \end{definition}
-\end{frame}
-\end{verbatim}
-Other useful environments like |theorem|, |lemma|, |proof|,
-|corollary|, or |example| are also predefined by \beamer. As in
-|amsmath|, they take optional arguments that they show in
-brackets. Indeed, |amsmath| is automatically loaded by \beamer.
-
-Since it is always a good idea to add examples, Euclid decides to add
-one:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{What Are Prime Numbers?}
-  \begin{definition}
-    A \alert{prime number} is a number that has exactly two divisors.
-  \end{definition}
-  \begin{example}
-    \begin{itemize}
-    \item 2 is prime (two divisors: 1 and 2).
-    \item 3 is prime (two divisors: 1 and 3).
-    \item 4 is not prime (\alert{three} divisors: 1, 2, and 4).
-    \end{itemize}
-  \end{example}
-\end{frame}
-\end{verbatim}
-
-
-\subsection{Creating Simple Overlays}
-
-The frame already looks quite nice, though, perhaps a bit colorful.
-However, Euclid would now like to show the three items one after
-another, not all three right away. To achieve this, he adds |\pause|
-commands after the first and second items:
-\begin{verbatim}
-  \begin{itemize}
-  \item 2 is prime (two divisors: 1 and 2).
-    \pause
-  \item 3 is prime (two divisors: 1 and 3).
-    \pause
-  \item 4 is not prime (\alert{three} divisors: 1, 2, and 4).
-  \end{itemize}
-\end{verbatim}
-
-By showing them incrementally, he
-hopes to focus the audience's attention on the item he is currently
-talking about. On second thought, he deletes the |\pause| stuff once
-more since in simple cases like the above the pausing is rather
-silly. Indeed, Euclids has noticed that good presentations make use of
-this uncovering mechanism only in special circumstances.
-
-\lyxnote
-You add a pause using the Pause style.
-
-Euclid finds that he can also add a |\pause| between the definition
-and the example. So, |\pause|s seem to transcede environments, which
-Euclid finds quite useful. After some experimentation he finds that
-|\pause| only does not work in |align| environments. He immediately
-writes an email about this to \beamer's author, but receives a polite
-answer stating that the implementation of |align| does wicked things
-and there is no fix for this. Also, Euclid is pointed to the last part
-of the user's guide, where a workaround is described. 
-
-
-\subsection{Using Overlay Specifications}
-
-The next frame is to show his main argument and is put in a ``Results''
-section. Euclid desires a more complicated overlay behavior for this
-frame: In an enumeration of four points he 
-wishes to uncover the points one-by-one, but he wishes the fourth
-point to be shown at the same time as the first. The idea is to
-illustrate his new proof method, namely proof by contradiction, where
-a wrong assumption is brought to a contradiction at the end after a
-number of intermediate steps that are not important at the
-beginning. For this, Euclid uses \emph{overlay specifications}:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{There Is No Largest Prime Number}
-  \framesubtitle{The proof uses \textit{reductio ad absurdum}.}
-
-  \begin{theorem}
-    There is no largest prime number.
-  \end{theorem}
-  \begin{proof}
-    \begin{enumerate}
-    \item<1-> Suppose $p$ were the largest prime number.
-    \item<2-> Let $q$ be the product of the first $p$ numbers.
-    \item<3-> Then $q + 1$ is not divisible by any of them.
-    \item<1-> Thus $q + 1$ is also prime and greater than $p$.\qedhere
-    \end{enumerate}      
-  \end{proof}
-  \uncover<4->{The proof used \textit{reductio ad absurdum}.}
-\end{frame}
-\end{verbatim}
-The overlay specifications are given in pointed brackets. The
-specification |<1->| means ``from slide 1 on.'' Thus, the first and
-fourth item are shown on the first slide of the frame, but the other
-two items are not shown. Rather, the second point is shown only from
-the second slide onward. \beamer\ automatically computes the number of slides
-needed for each frame. More generally, overlay specification are lists
-of numbers or number ranges where the start or ending of a range can
-be left open. For example |-3,5-6,8-| means ``on all slides, except
-for slides 4 and~7.''
-
-\lyxnote
-You add overlay specifications to the items by entering \TeX-mode
-(press on the little \TeX\ icon) and writing |<1->|. This \TeX-text
-should be placed right at the beginning of the item.
-
-The |\qedhere| is used to put the \textsc{qed} symbol at the end of
-the line \emph{inside} the enumeration. Normally, the \textsc{qed}
-symbol is automatically inserted at the end of a proof environment,
-but that would be on an ugly empty line here.
-
-The |\item| command is not the only command that takes overlay
-specifications. Another useful command that takes one is the
-|\uncover| command. It only shows its argument on the slides specified 
-in the overlay specification. On all other slides, the argument is
-hidden (though it still occupies space). The command |\only| is
-similar and Euclid could also have tried
-\begin{verbatim}
-  \only<4->{The proof used \textit{reductio ad absurdum}.}
-\end{verbatim}
-On non-specified slides the |\only| command simply ``throws its
-argument away'' and the argument does not occupy any space. This leads
-to different heights of the text on the first three slides and of the
-fourth slide. If the text is centered vertically, this will cause the
-text to ``wobble'' and thus |\uncover| should be used. However, you
-sometimes wish things to ``really disappear'' on some slides and then
-|\only| is useful. Euclid could also have used the class option
-|t|, which causes the text in frames to be vertically flushed
-to the top. Then a differing text height does not cause
-wobbling. Vertical flushing can also be achieved for only a single
-frame be by giving the optional argument |[t]| like this to the
-|frame| environment as in 
-\begin{verbatim}
-\begin{frame}[t]
-  \frametitle{There Is No Largest Prime Number}
-  ...
-\end{frame}
-\end{verbatim}
-Vice versa, if the |t| class option is given, a frame can be
-vertically centered using the |[c]| option for the frame.
-
-It turns out that certain environments, including the |theorem| and
-|proof| environments above, also take overlay specifications. If such
-a specification is given, the whole theorem or proof is only shown on
-the specified slides.
-
-
-\subsection{Structuring a Frame}
-
-On the next frame, Euclid wishes to contrast solved and open problems
-on prime numbers. Since there is no ``Solved problem'' environment
-similar to the |theorem| environment, Euclid decides to use the
-|block| environment, which allows him to give an arbitrary title:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{What's Still To Do?}
-  \begin{block}{Answered Questions}
-    How many primes are there?
-  \end{block}
-  \begin{block}{Open Questions}
-    Is every even number the sum of two primes?
-  \end{block}
-\end{frame}
-\end{verbatim}
-He could also have defined his own theorem-like environment by putting
-the following in the preamble:
-\begin{verbatim} 
-%\newtheorem{answeredquestions}[theorem]{Answered Questions}
-%\newtheorem{openquestions}[theorem]{Open Questions}
-\end{verbatim}
-The optional argument |[theorem]| ensures that these environments are 
-numbered the same way as everything else. Since these numbers are not
-shown anyway, it does not really matter whether they are given, but
-it's a good practice and, perhaps, Euclid might need these numbers
-some other time.
-
-An alternative would be nested |itemize|:
-\begin{verbatim}
-\begin{frame}
-  \frametitle{What's Still To Do?}
-  \begin{itemize}
-  \item Answered Questions
-    \begin{itemize}
-    \item How many primes are there?
-    \end{itemize}
-  \item Open Questions
-    \begin{itemize}
-    \item Is every even number the sum of two primes?
-    \end{itemize}
-  \end{itemize}
-\end{frame}
-\end{verbatim}
-Pondering on the problem some more, Euclid decides that it would be
-even nicer to have the ``Answered Questions'' on the left and the
-``Open Questions'' on the right, so as to create a stronger visual
-contrast. For this, he uses the |columns| environment. Inside this
-environment, |\column| commands create new columns.
-\begin{verbatim}
-\begin{frame}
-  \frametitle{What's Still To Do?}
-  \begin{columns}
-    \column{.5\textwidth}
-      \begin{block}{Answered Questions}
-        How many primes are there?
-      \end{block}
-
-    \column{.5\textwidth}
-      \begin{block}{Open Questions}
-        Is every even number the sum of two primes?
-      \end{block}
-  \end{columns}
-\end{frame}
-\end{verbatim}
-Trying this, he is not quite satisfied with the result as the block on
-the left has a different height than the one on the right. He thinks it
-would be nicer if they were vertically top-aligned. So he adds the
-|[t]| option to the |columns| environment. 
-
-Euclid is somewhat please to find out that a |\pause| at the end of
-the first column allows him to ``uncover'' the second column only on
-the second slide of the frame.
-
-
-
-\subsection{Adding References}
-
-Euclid decides that he would like to add a citation to his open
-questions list, since he would like to attribute the question to his
-good old friend Christian. Euclid is not really sure whether using a
-bibliography in his talk is a good idea, but he goes ahead anyway. 
-
-To this end, he adds an entry to the bibliography, which he
-fortunately already finds in the solution file. Having the
-bibliography in the appendix does not quite suit Euclid, so he removes
-the |\appendix| command. He also notices |<presentation>| overlay
-specification and finds them a bit strange, but they do seem to hurt
-either. Hopefully they do something useful. His bibliography looks
-like this:
-\begin{verbatim}
-  \begin{thebibliography}{10}
-  \bibitem{Goldbach1742}[Goldbach, 1742]
-    Christian Goldbach.
-    \newblock A problem we should try to solve before the ISPN '43 deadline, 
-    \newblock \emph{Letter to Leonhard Euler}, 1742.
-  \end{thebibliography}
-\end{verbatim}
-and he can then add a citation:
-\begin{verbatim}
-\begin{block}{Open Questions}
-  Is every even number the sum of two primes?
-  \cite{Goldbach1742}
-\end{block}
-\end{verbatim}
-
-
-
-
-
-\subsection{Verbatim Text}
-
-One another frame, Euclid would like to show a listing of an
-algorithm his friend Eratosthenes has send him (saying he came up with
-it while reorganizing his sieve collection). Euclid normally uses the
-|verbatim| environment and sometimes also similar environments like
-|lstlisting| to typeset listings. He can also use them in \beamer, but
-he must add the |fragile| option to the frame:
-\begin{verbatim}
-\begin{frame}[fragile]
-  \frametitle{An Algorithm For Finding Primes Numbers.}
-
-%\begin{verbatim} 
-int main (void)
-{
-  std::vector<bool> is_prime (100, true);
-  for (int i = 2; i < 100; i++)
-    if (is_prime[i])
-      {
-        std::cout << i << " ";
-        for (int j = i; j < 100; is_prime [j] = false, j+=i);
-      }
-  return 0;
-} 
-\end{verbatim}
-\unskip{\MacroFont|\end{verbatim}|}
-                                %\begin{verbatim}
-\begin{verbatim}
-  \begin{uncoverenv}<2>
-    Note the use of \verb|std::|.
-  \end{uncoverenv}
-\end{frame}
-\end{verbatim}
-
-
-On second thought, Euclid would prefer to uncover part of the
-algorithm stepwise and to add an emphasis on certain lines or parts of
-lines. He can use package like |alltt| for this, but in simple cases
-the environment |{semiverbatim}| defined by \beamer\ is more useful:
-It works like |{verbatim}|, except that |\|, |{|, and |}| retain their
-meaning (one can typeset them by using |\\|, |\{|, and |\}|). Euclid
-might now typeset his algorithm as follows:
-
-\begin{verbatim}
-\begin{frame}[fragile]
-  \frametitle{An Algorithm For Finding Primes Numbers.}
-
-\begin{semiverbatim}    
-\uncover<1->{\alert<0>{int main (void)}}
-\uncover<1->{\alert<0>{\{}}
-\uncover<1->{\alert<1>{  \alert<4>{std::}vector<bool> is_prime (100, true);}}
-\uncover<1->{\alert<1>{  for (int i = 2; i < 100; i++)}}
-\uncover<2->{\alert<2>{    if (is_prime[i])}}
-\uncover<2->{\alert<0>{      \{}}
-\uncover<3->{\alert<3>{        \alert<4>{std::}cout << i << " ";}}
-\uncover<3->{\alert<3>{        for (int j = i; j < 100;}}
-\uncover<3->{\alert<3>{             is_prime [j] = false, j+=i);}}
-\uncover<2->{\alert<0>{      \}}}
-\uncover<1->{\alert<0>{  return 0;}}
-\uncover<1->{\alert<0>{\}}}
-\end{semiverbatim}
-
-  \visible<4->{Note the use of \alert{\texttt{std::}}.}
-\end{frame}
-\end{verbatim}
-
-The |\visible| command does nearly the same as |\uncover|. A
-difference occurs if the command |\setbeamercovered{transparent}| has
-been used to make covered text ``transparent'' instead, |\visible| still makes the text
-completely ``invisible'' on non-specified slides. Euclid has
-the feeling that the naming convention is a bit strange, but cannot
-quite pinpoint the problem.
-
-\subsection{Changing the Way Things Look I: Theming}
-
-With the contents of this talk fixed, Euclid decides to have a second
-look at the way things look. He goes back to the beginning and finds
-the line
-\begin{verbatim}
-\usetheme{Warsaw}
-\end{verbatim}
-By substituting other cities (he notices that these cities seem to
-have in common that there has been a workshop or conference on
-theoretical computer science there at which always the same person had
-a paper, attended, or gave a talk) Euclid can change the way his
-presentation is going to look. He decides to choose some theme that is
-reasonably simple but, since his talk is not too short, shows a bit of
-navigational information.
-
-He settles on the |Frankfurt| theme but decides that the light-dark
-contrast is too strong. He adds
-\begin{verbatim}
-\usecolortheme{seahorse}
-\usecolortheme{rose} 
-\end{verbatim}  
-The result seems some more subdued to him.
-
-Euclid decides that the font used for the titles is not quite
-classical enough (classical fonts are the latest chic in
-Alexandria). So, he adds
-\begin{verbatim}
-\usefonttheme[onlylarge]{structuresmallcapsserif}
-\end{verbatim}
-
-Euclid notices that the small fonts in the navigation bars
-are a bit hard to read as they are so thin. Adding the following
-helps:
-\begin{verbatim}
-\usefonttheme[onlysmall]{structurebold}
-\end{verbatim}
-
-
-\subsection{Changing the Way Things Look II: Colors and Fonts}
-
-Since Euclid wants to give a \emph{perfect} talk, he decides that the
-font used for the title simply has to be a serif italics. To change
-only the font used for the title, Euclid uses the following command:
-\begin{verbatim}
-\setbeamerfont{title}{shape=\itshape,family=\rmfamily}
-\end{verbatim}
-He notices that the font is still quite large (which he likes), but
-wonders why this is the case since he did not specify this. The reason
-is that calls of |\setbeamerfont| accumulate and the size was already
-set to |\large| by some font theme. Using the starred version of
-|\setbeamerfont| ``resets'' the font.
-
-Euclid decides that he would also like to change the color of the
-title to a dashing red, though, perhaps, with a bit of black added. He
-uses the following command:
-\begin{verbatim}
-\setbeamercolor{title}{fg=red!80!black}
-\end{verbatim}
-Trying the following command, Euclid is delighted to find that
-specifying a background color also has an effect:
-\begin{verbatim}
-\setbeamercolor{title}{fg=red!80!black,bg=red!20!white}
-\end{verbatim}
-
-
-Finally, Euclid is satisfied with the presentation and goes ahead and
-gives a great talk at the conference, making many new friends. He also
-writes that email to \beamer's author containing that long list of
-things that he missed in \beamer\ or that do not work. He is a bit
-disappointed to learn that it might take till ISPN~'79 for all these
-things to be taken care of, but he also understands that \beamer's
-author also needs some time to do research or otherwise he would have
-nothing to given presentations about.
-
-%%% Local Variables: 
-%%% mode: latex
-%%% TeX-master: "beameruserguide"
-%%% End: