notes/school/di-ma/uebung/02/02_3.tex
2018-10-28 13:22:52 +01:00

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\documentclass[12pt,a4paper,german]{article}
\usepackage{url}
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\usepackage{ngerman}
\usepackage{float}
\usepackage{diagbox}
\usepackage[utf8]{inputenc}
\usepackage{geometry}
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\usepackage{amsmath}
\usepackage{csquotes}
\usepackage{graphicx}
\usepackage{epsfig}
\usepackage{paralist}
\geometry{left=2.0cm,textwidth=17cm,top=3.5cm,textheight=23cm}
%%%%%%%%%% Fill out the the definitions %%%%%%%%%
\def \name {Valentin Brandl} %
\def \matrikel {108018274494} %
\def \pname {Marvin Herrmann} %
\def \pmatrikel {108018265436} %
\def \gruppe {2 (Mi 10-12 Andre)}
\def \uebung {2} %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% DO NOT MODIFY THIS HEADER
\newcommand{\hwsol}{
\vspace*{-2cm}
\noindent \matrikel \quad \name \hfill \"Ubungsgruppe: \gruppe \\
\noindent \pmatrikel \quad \pname \\
\begin{center}{\Large \bf L\"osung f\"ur \"Ubung \# \uebung}\end{center}
}
\begin{document}
%Import header
\hwsol
\section*{Aufgabe 2.3}
\begin{enumerate}[1.]
\item
\begin{eqnarray*}
x_1 + x_2 + x_3 + x_4 + x_5 + x_6 &=& 67 \text{ mit } x_i \ge 0 \text{ für } 1 \le i \le 6 \\
\text{Normalisierung:} \\
\text{für } 1 \le i \le 3 \rightarrow x_i' &=& x_i - 1 \text{ (ungerade Zahlen werden gerade)} \\
\text{für } 4 \le i \le 6 \rightarrow x_i' &=& x_i \\
\Rightarrow x_1' + x_2' + x_3' + x_4' + x_5' + x_6' &=& 64 \\
\text{für } 1 \le i \le 6 \rightarrow y_i &=& \frac{x_i'}{2}
\text{ (Bedingung \enquote{alle Zahlen gerade} erfüllt)} \\
\Rightarrow y_1 + y_2 + y_3 + y_4 + y_5 + y_6 &=& 32 \\
\text{für } 1 \le i \le 6 \rightarrow z_i &=& y_i + 1 \\
\Rightarrow z_1 + z_2 + z_3 + z_4 + z_5 + y_6 &=& 38 \\\\
\Rightarrow \binom{n-1}{k-1} &=& \binom{37}{5} = 435897
\end{eqnarray*}
\item
\begin{tabular}{c|cccccccccc}
$n/k$ & 1 & 2 & 3 & 4 & 5 &6 & 7 & 8 & 9 & 10 \\\hline
1 & 1 & & & & & & & & & \\
2 & 1 & 1 & & & & & & & & \\
3 & 1 & 1 & 1 & & & & & & & \\
4 & 1 & 2 & 1 & 1 & & & & & & \\
5 & 1 & 2 & 2 & 1 & 1 & & & & & \\
6 & 1 & 3 & 3 & 2 & 1 & 1 & & & & \\
7 & 1 & 3 & 4 & 3 & 2 & 1 & 1 & & & \\
8 & 1 & 4 & 5 & 5 & 3 & 2 & 1 & 1 & & \\
9 & 1 & 4 & 7 & 6 & 5 & 3 & 2 & 1 & 1 & \\
10 & 1 & 5 & 8 & \underline{9} &7 &5 &3 &2 & 1 & 1 \\
\end{tabular}
\begin{eqnarray*}
P_{n,k} &=& P_{n-1,k-1} + P_{n-k,k} \text{ mit} \\
P_{n.0} &=& 0 \\
P_{n.n} &=& 1 \\
P_{n.1} &=& 1 \\\\
P_{10,4} &=& 9
\end{eqnarray*}
\end{enumerate}
\end{document}