src/Doc/isac/jrocnik/final/jrocnik_present1.tex
changeset 52107 f8845fc8f38d
parent 52106 7f3760f39bdc
child 52108 9aaf0d0f0ce4
     1.1 --- a/src/Doc/isac/jrocnik/final/jrocnik_present1.tex	Mon Sep 16 12:27:20 2013 +0200
     1.2 +++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.3 @@ -1,434 +0,0 @@
     1.4 -
     1.5 -\documentclass{beamer}
     1.6 -
     1.7 -
     1.8 -\mode<presentation>
     1.9 -{
    1.10 -  \usetheme{Hannover}
    1.11 -  \setbeamercovered{transparent}
    1.12 -}
    1.13 -
    1.14 -\usepackage[english]{babel}
    1.15 -\usepackage[utf8]{inputenc}
    1.16 -\usepackage{times}
    1.17 -\usepackage[T1]{fontenc}
    1.18 -
    1.19 -\def\isac{${\cal I}\mkern-2mu{\cal S}\mkern-5mu{\cal AC}$}
    1.20 -\def\sisac{{\footnotesize${\cal I}\mkern-2mu{\cal S}\mkern-5mu{\cal AC}$}}
    1.21 -
    1.22 -\title[SPSC in \isac] % (optional, use only with long paper titles)
    1.23 -{Interactive Course Material\\ for Signal Processing\\ based on Isabelle/\isac}
    1.24 -
    1.25 -\subtitle{Baccalaureate Thesis}
    1.26 -
    1.27 -\author[Ro\v{c}nik]
    1.28 -{Jan Rocnik}
    1.29 -
    1.30 -\institute % (optional, but mostly needed)
    1.31 -{
    1.32 -  Technische Universit\"at Graz\\
    1.33 -  Institut f\"ur TODO
    1.34 -}
    1.35 -
    1.36 -% If you have a file called "university-logo-filename.xxx", where xxx
    1.37 -% is a graphic format that can be processed by latex or pdflatex,
    1.38 -% resp., then you can add a logo as follows:
    1.39 -
    1.40 -% \pgfdeclareimage[height=0.5cm]{university-logo}{university-logo-filename}
    1.41 -% \logo{\pgfuseimage{university-logo}}
    1.42 -
    1.43 -
    1.44 -
    1.45 -% Delete this, if you do not want the table of contents to pop up at
    1.46 -% the beginning of each subsection:
    1.47 -\AtBeginSubsection[]
    1.48 -{
    1.49 -  \begin{frame}<beamer>{Outline}
    1.50 -    \tableofcontents[currentsection,currentsubsection]
    1.51 -  \end{frame}
    1.52 -}
    1.53 -
    1.54 -\begin{document}
    1.55 -
    1.56 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.57 -%%												Title Page                             %%
    1.58 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.59 -
    1.60 -\begin{frame}
    1.61 -  \titlepage
    1.62 -\end{frame}
    1.63 -
    1.64 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.65 -%%												Table of Contents                      %%
    1.66 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.67 -
    1.68 -\begin{frame}{Outline}
    1.69 -  \tableofcontents
    1.70 -  % You might wish to add the option [pausesections]
    1.71 -\end{frame}
    1.72 -
    1.73 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.74 -%%---------------------------------------------------------------%%
    1.75 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.76 -
    1.77 -\section[Intro]{Introduction}
    1.78 -
    1.79 -\begin{frame}{Issues to be Accomplished}
    1.80 -
    1.81 -\begin{itemize}
    1.82 -
    1.83 -\item What knowledge is already mechanised in \emph{Isabelle}?
    1.84 -\item How can missing theorems and definitions be mechanised?
    1.85 -\item What is the effort for such mechanisation?
    1.86 -\item How do calculations look like, by using mechanised knowledge?
    1.87 -\item What problems and subproblems have to be solved?
    1.88 -\item Which problems are already implemented in \sisac?
    1.89 -\item How are the new problems specified (\sisac)?
    1.90 -\item Which variantes of programms in \sisac\ solve the problems?
    1.91 -\item What is the contents of the interactiv course material (Figures, etc.)?
    1.92 -
    1.93 -\end{itemize}
    1.94 -\end{frame}
    1.95 -
    1.96 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.97 -%%---------------------------------------------------------------%%
    1.98 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
    1.99 -
   1.100 -\section[Fourier]{Fourier transformation}
   1.101 -\subsection[Fourier]{Fourier transform}
   1.102 -
   1.103 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.104 -%%												Fourier INTRO                          %%
   1.105 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.106 -
   1.107 -\begin{frame}\frametitle{Fourier Transformation: Introduction}
   1.108 -Possibilities:
   1.109 -\begin{itemize}
   1.110 -\item Transform operation by using property-tables
   1.111 -\item Transform operation by using integral
   1.112 -\end{itemize}
   1.113 -Also Important:
   1.114 -\begin{itemize}
   1.115 -\item Visualisation?!
   1.116 -\end{itemize}
   1.117 -\end{frame}
   1.118 -
   1.119 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.120 -%%										Transform expl   SPEC                      %%
   1.121 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.122 -
   1.123 -\begin{frame}\frametitle{Fourier Transformation: Specification}
   1.124 -{\footnotesize
   1.125 -
   1.126 -Determine the fourier transform for the given rectangular impulse:
   1.127 -
   1.128 -\begin{center}
   1.129 -$x(t)= \left\{
   1.130 -     \begin{array}{lr}
   1.131 -       1 & -1\leq t\leq1\\
   1.132 -       0 & else
   1.133 -     \end{array}
   1.134 -   \right.$
   1.135 -\end{center}
   1.136 -
   1.137 -\hrulefill
   1.138 -
   1.139 -\begin{tabbing}
   1.140 -1\=postcond \=: \= \= $\;\;\;\;$\=\kill
   1.141 -\>given    \>:\>  piecewise\_function \\
   1.142 -\>         \> \>  \>$fun (x (t::real),\ x=1\ ((t>=-1)\ \&\ (t<=1)),\ x=0)$\\
   1.143 -\>precond  \>:\>  TODO\\
   1.144 -\>find     \>:\>  $X(j\cdot\omega)$\\
   1.145 -\>postcond \>:\>  TODO\\
   1.146 -\end{tabbing}
   1.147 -
   1.148 -}
   1.149 -\end{frame}
   1.150 -
   1.151 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.152 -%%												Transform expl   REQ                   %%
   1.153 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.154 -
   1.155 -\begin{frame}\frametitle{Fourier Transform: Development effort}
   1.156 -{\small
   1.157 -\begin{center}
   1.158 -\begin{tabular}{l|l|r}
   1.159 -requirements            & comments             &effort\\ \hline\hline
   1.160 -solving Intrgrals		    & simple via propertie table     &     20\\
   1.161 -                        & \emph{real}          &    MT\\ \hline
   1.162 -transformation table    & simple transform     &    20\\ \hline
   1.163 -visualisation						& backend							 &    10\\ \hline
   1.164 -example collection      & with explanations    &    20\\ \hline\hline
   1.165 -                        &                      & 70-80\\
   1.166 -\end{tabular}
   1.167 -\end{center}
   1.168 -effort --- in 45min units\\
   1.169 -MT --- thesis ``Integrals'' (mathematics)
   1.170 -}
   1.171 -\end{frame}
   1.172 -
   1.173 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.174 -%%--------------------FOURIER---Conclusion-----------------------%%
   1.175 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.176 -
   1.177 -\begin{frame}{Fourier Transformation: Summary}
   1.178 -\begin{itemize}
   1.179 -
   1.180 -\item Standard integrals can be solved with tables
   1.181 -\item No real integration (yet avaible)
   1.182 -\item Math \emph{tricks} difficult to implement
   1.183 -
   1.184 -
   1.185 -\end{itemize}
   1.186 -\end{frame}
   1.187 -
   1.188 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.189 -%-----------------------------------------------------------------%
   1.190 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.191 -
   1.192 -\section[LTI Systems]{LTI systems}
   1.193 -\subsection[Convolution]{Convolution (Faltung)}
   1.194 -
   1.195 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.196 -%%												LTI INTRO				                       %%
   1.197 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.198 -
   1.199 -\begin{frame}\frametitle{Convolution: Introduction}
   1.200 -\begin{itemize}
   1.201 -\item Calculation include sums
   1.202 -\item Demonstrative examples
   1.203 -\item Visualisation is important
   1.204 -\end{itemize}
   1.205 -\end{frame}
   1.206 -
   1.207 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.208 -%%												LTI SPEC				                       %%
   1.209 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.210 -
   1.211 -\begin{frame}\frametitle{Convolution: Specification}
   1.212 -{\footnotesize
   1.213 -
   1.214 -Consider the two discrete-time, linear and time-invariant (LTI) systems with the following impulse response:
   1.215 -
   1.216 -\begin{center}
   1.217 -$h_1[n]=\left(\frac{3}{5}\right)^n\cdot u[n]$\\
   1.218 -$h_1[n]=\left(-\frac{2}{3}\right)^n\cdot u[n]$
   1.219 -\end{center}
   1.220 -
   1.221 -The two systems are cascaded seriell. Derive the impulse respinse of the overall system $h_c[n]$.
   1.222 -
   1.223 -\hrulefill
   1.224 -
   1.225 -\begin{tabbing}
   1.226 -1\=postcond \=: \= \= $\;\;\;\;$\=\kill
   1.227 -\>given    \>:\>  Signals h1[n], h2[n] \\
   1.228 -\>         \> \>  \>((h1[n]=(3/5)\textasciicircum{}n*u[n]),\,h2[n]=(-2/3)\textasciicircum{}n*u[n]))\\
   1.229 -                        
   1.230 -\>precond  \>:\>  TODO\\
   1.231 -\>find     \>:\>  $h1[n]\,*\,h2[n]$\\
   1.232 -\>postcond \>:\>  TODO\\
   1.233 -\end{tabbing}
   1.234 -
   1.235 -}
   1.236 -\end{frame}
   1.237 -
   1.238 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.239 -%%												LTI REQ  				                       %%
   1.240 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.241 -
   1.242 -\begin{frame}\frametitle{Convolution: Development effort}
   1.243 -{\small
   1.244 -\begin{center}
   1.245 -\begin{tabular}{l|l|r}
   1.246 -requirements            & comments             &effort\\ \hline\hline
   1.247 -simplify rationals      & \sisac               &     0\\ \hline
   1.248 -define $\sum\limits_{i=0}^{n}i$ & partly \sisac  &    10\\ \hline
   1.249 -simplify sum			      & termorder            &    10\\
   1.250 -                        & simplify rules       &    20\\
   1.251 -                        & use simplify rationals&     0\\ \hline
   1.252 -index adjustments       & with unit step       &      10\\ \hline
   1.253 -example collection      & with explanations    &    20\\ \hline\hline
   1.254 -                        &                      & 70-90\\
   1.255 -\end{tabular}
   1.256 -\end{center}
   1.257 -effort --- in 45min units\\
   1.258 -}
   1.259 -\end{frame}
   1.260 -
   1.261 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.262 -%%--------------------LTI-------Conclusion-----------------------%%
   1.263 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.264 -
   1.265 -\begin{frame}{Convolution: Summary}
   1.266 -\begin{itemize}
   1.267 -
   1.268 -\item Standard example
   1.269 -\item Straight forward
   1.270 -\item Challenge are sum limits
   1.271 -
   1.272 -\end{itemize}
   1.273 -\end{frame}
   1.274 -
   1.275 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.276 -%-----------------------------------------------------------------%
   1.277 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.278 -
   1.279 -\section[Z-transform]{Z-Transform}
   1.280 -\subsection[(Inverse) Z-Transform]{(Inverse) Z-Transform}
   1.281 -
   1.282 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.283 -%%												Z-Transform  INTRO                     %%
   1.284 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.285 -
   1.286 -\begin{frame}\frametitle{(Inverse) ${\cal Z}$-Transformation: Introduction}
   1.287 -\begin{itemize}
   1.288 -\item Pure Transformation is simple to realise with Z-Transform Properties (Table)
   1.289 -\item Partial Fraction are just math simplifications
   1.290 -\end{itemize}
   1.291 -\end{frame}
   1.292 -
   1.293 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.294 -%%												Z-Transform  SPEC                      %%
   1.295 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.296 -
   1.297 -\begin{frame}\frametitle{(Inverse) Z-Transformation: Specification}
   1.298 -{\footnotesize
   1.299 -
   1.300 -Determine the inverse z transform of the following expression. Hint: applay the partial fraction expansion.
   1.301 -
   1.302 -\begin{center}
   1.303 -$X(z)=\frac{3}{z-\frac{1}{4}-\frac{1}{8}z^{-1}},\ \ x[n]$ is absolute summable
   1.304 -\end{center}
   1.305 -
   1.306 -
   1.307 -\hrulefill
   1.308 -
   1.309 -\begin{tabbing}
   1.310 -1\=postcond \=: \= \= $\;\;\;\;$\=\kill
   1.311 -\>given    \>:\>  Expression of z \\
   1.312 -\>         \> \>  \>(X (z::complex),3/(z-1/4-1/8\,z\textasciicircum{}(-1)))\\
   1.313 -\>precond  \>:\>  TODO\\
   1.314 -\>find     \>:\>  Expression of n\\
   1.315 -\>         \> \>  \>$h[n]$\\
   1.316 -\>postcond \>:\>  TODO\\
   1.317 -\end{tabbing}
   1.318 -
   1.319 -}
   1.320 -\end{frame}
   1.321 -
   1.322 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.323 -%%												Z expl		REQ	                         %%
   1.324 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.325 -
   1.326 -
   1.327 -\begin{frame}\frametitle{(Inverse) Z-Transformation: Development effort}
   1.328 -{\small
   1.329 -\begin{center}
   1.330 -\begin{tabular}{l|l|r}
   1.331 -requirements            & comments             &effort\\ \hline\hline
   1.332 -solve for part.fract.   & \sisac: degree 2     &     0\\
   1.333 -                        & complex nomminators  &    30\\
   1.334 -                        & degree > 2           &    MT\\ \hline
   1.335 -simplify polynomial     & \sisac               &     0\\
   1.336 -simplify rational       & \sisac               &     0\\ \hline
   1.337 -part.fract.decomposition& degree 2             &      \\
   1.338 -                        & specification, method&    30\\ \hline
   1.339 -${\cal Z}^{-1}$ table    &                       &   20\\
   1.340 -                        & explanations, figures&    20\\ \hline
   1.341 -example collection      & with explanations    &    20\\ \hline\hline
   1.342 -                        &                      & 90-120\\
   1.343 -%                        &                      & 1 MT
   1.344 -\end{tabular}
   1.345 -\end{center}
   1.346 -effort --- in 45min units\\
   1.347 -MT --- thesis ``factorization'' (mathematics)
   1.348 -}
   1.349 -\end{frame}
   1.350 -
   1.351 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.352 -%%--------------------Z-TRANS---Conclusion-----------------------%%
   1.353 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.354 -
   1.355 -\begin{frame}{(Inverse) Z-Transformation: Summary}
   1.356 -\begin{itemize}
   1.357 -
   1.358 -\item No \emph{higher} math operations
   1.359 -\item Different subproblems of math (equation systems, etc.)
   1.360 -\item Both directions have the same effort
   1.361 -
   1.362 -\end{itemize}
   1.363 -\end{frame}
   1.364 -
   1.365 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.366 -%-----------------------------------------------------------------%
   1.367 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.368 -
   1.369 -\section[Conclusions]{Conclusions}
   1.370 -
   1.371 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.372 -%--------------------------DEMONSTRATION--------------------------%
   1.373 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.374 -
   1.375 -\begin{frame}{Demonstration}
   1.376 -
   1.377 -\centering{Demonstration}
   1.378 -
   1.379 -\end{frame}
   1.380 -
   1.381 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.382 -%--------------------------CONCLUSION-----------------------------%
   1.383 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.384 -
   1.385 -\begin{frame}{Conclusions}
   1.386 -
   1.387 -Design Challanges:
   1.388 -
   1.389 -{\small
   1.390 -\begin{itemize}
   1.391 -
   1.392 -\item Pre and Post conditions
   1.393 -\item Exact mathematic behind functions
   1.394 -\item Accurate mathematic notation
   1.395 -
   1.396 -\end{itemize}
   1.397 -}
   1.398 -
   1.399 -Goals:
   1.400 -{\small
   1.401 -\begin{itemize}
   1.402 -
   1.403 -\item Spot the power of \sisac
   1.404 -\item Implementation of generell but simple math problems
   1.405 -\item Setting up a good first guideline (documentation) for furher problem implemenations
   1.406 -
   1.407 -\end{itemize}
   1.408 -
   1.409 -\centering{Efforts are only approximations, due we have no \emph{real} experience data!}
   1.410 -}
   1.411 -
   1.412 -\end{frame}
   1.413 -
   1.414 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.415 -%--------------------------TIME LINE------------------------------%
   1.416 -%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   1.417 -
   1.418 -\begin{frame}{Comming up}
   1.419 -
   1.420 -{\small
   1.421 -\begin{tabular}{l r}
   1.422 -
   1.423 -Juli 2011 & project startup\\
   1.424 -Juli 2011 & information collection, 1st presentation\\
   1.425 -August 2011 & extern traineeship\\
   1.426 -September 2011 & main work\\
   1.427 -after Oktober & finishing, documentation\\
   1.428 -
   1.429 -\end{tabular}
   1.430 -}
   1.431 -
   1.432 -\end{frame}
   1.433 -
   1.434 -
   1.435 -\end{document}
   1.436 -
   1.437 -