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diff --git a/buch/chapters/080-funktionentheorie/images/nonanalytic.tex b/buch/chapters/080-funktionentheorie/images/nonanalytic.tex new file mode 100644 index 0000000..258e0f5 --- /dev/null +++ b/buch/chapters/080-funktionentheorie/images/nonanalytic.tex @@ -0,0 +1,40 @@ +% +% nonanalytic.tex -- nicht analytische reelle C^\infty-Funktion +% +% (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule +% +\documentclass[tikz]{standalone} +\usepackage{amsmath} +\usepackage{times} +\usepackage{txfonts} +\usepackage{pgfplots} +\usepackage{csvsimple} +\usetikzlibrary{arrows,intersections,math} +\begin{document} +\def\skala{1} +\begin{tikzpicture}[>=latex,thick,scale=\skala] + +\draw[color=red,line width=1.4pt] plot[domain=0.01:2.5,samples=100] + ({2*\x},{4*exp(-1/(\x*\x))}); +\draw[color=red,line width=1.4pt] plot[domain=0.01:2.5,samples=100] + ({-2*\x},{4*exp(-1/(\x*\x))}); + +\draw (2,-0.1) -- (2,0.1); +\draw (4,-0.1) -- (4,0.1); +\draw (-2,-0.1) -- (-2,0.1); +\draw (-4,-0.1) -- (-4,0.1); + +\node at (2,0) [below] {$1$}; +\node at (4,0) [below] {$2$}; +\node at (-2,0) [below] {$-1$}; +\node at (-4,0) [below] {$-2$}; + +\draw (-0.1,4) -- (0.1,4); +\node at (-0.1,4) [left] {$1$}; + +\draw[->] (-5.1,0) -- (5.4,0) coordinate[label={$x$}]; +\draw[->] (0,-0.1) -- (0,4.4) coordinate[label={right:$y$}]; + +\end{tikzpicture} +\end{document} + |