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author | Andreas Müller <andreas.mueller@ost.ch> | 2021-06-14 07:26:10 +0200 |
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committer | GitHub <noreply@github.com> | 2021-06-14 07:26:10 +0200 |
commit | 114633b43a0f1ebedbc5dfd85f75ede9841f26fd (patch) | |
tree | 18e61c7d69883a1c9b69098b7d36856abaed5c1e /buch/chapters/40-eigenwerte/images/wurzel.tex | |
parent | Delete buch.pdf (diff) | |
parent | Fix references.bib (diff) | |
download | SeminarMatrizen-114633b43a0f1ebedbc5dfd85f75ede9841f26fd.tar.gz SeminarMatrizen-114633b43a0f1ebedbc5dfd85f75ede9841f26fd.zip |
Merge branch 'master' into master
Diffstat (limited to '')
-rw-r--r-- | buch/chapters/40-eigenwerte/images/wurzel.tex | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/buch/chapters/40-eigenwerte/images/wurzel.tex b/buch/chapters/40-eigenwerte/images/wurzel.tex new file mode 100644 index 0000000..ca2825a --- /dev/null +++ b/buch/chapters/40-eigenwerte/images/wurzel.tex @@ -0,0 +1,94 @@ +% +% wurzel.tex -- Wurzel +% +% (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{10} +\definecolor{darkgreen}{rgb}{0,0.6,0} +\begin{tikzpicture}[>=latex,thick,scale=\skala] + +\def\a{0.8} +\def\U{0} + +\fill[color=blue!20] (0,\a) rectangle (1.00,1.03); +\draw[line width=0.4pt] (0,1) -- (1,1) -- (1,0); + +\draw[->] (0,{-0.01}) -- (0,{1.06}) coordinate[label={right:$y$}]; + +\begin{scope} +\clip (0,0) rectangle (1,1); +\draw[color=blue,line width=1.4pt] plot[domain=0:1.01,samples=100] + ({\x},{\x*\x}); +\end{scope} + +%\draw[color=purple,line width=0.5pt] (0.48,-0.01) -- (1,1); +%\fill[color=purple] (1,1) circle[radius=0.008]; + +\node[color=blue] at (0,{\a}) [left] {$a$}; + +\def\schritt#1#2{ + \xdef\u{\U} + \pgfmathparse{0.5*(\a-\u*\u)} + \xdef\d{\pgfmathresult} + \pgfmathparse{\u+\d} + \xdef\U{\pgfmathresult} + + \fill[color=purple!10] (\u,{\u*\u}) -- (\U,\a) -- (\u,\a) -- cycle; + + \node[color=darkgreen] at (\u,0) [below] {$u_#1$}; + \draw[color=darkgreen,line width=0.1pt] (\u,0)--(\u,\a); + + \fill[color=darkgreen] (\u,{\u*\u}) circle[radius=0.006]; + + \draw[<->,color=darkgreen] (\u,{\u*\u}) -- (\u,\a); + + \draw[color=purple,shorten <= 0.6mm] + (\u,{\u*\u}) -- (\U,\a); +} +\def\marke#1#2{ + \node[color=orange] at ({0.5*(\u+\U)},\a) [#2] {$\frac12(a-u_#1^2)$}; + \draw[<->,color=orange,shorten >= 0mm,shorten <= 0mm] + (\u,\a) -- (\U,\a); +} + +\def\hoehe#1{ + \node[color=darkgreen] at ({\u+0.01},{\a-\d-0.01}) + [above,rotate=90] {$a-u_#1^2$}; +} + +\schritt{0}{1} +\hoehe{0} +\marke{0}{above} + +\schritt{1}{2} +\hoehe{1} +\marke{1}{above} +\node[color=darkgreen] at (\u,{\u*\u-0.02}) [above left] {$u_1^2$}; + +\schritt{2}{3} +\hoehe{2} +%\marke{2}{right,rotate=90} +\marke{2}{above} +\node[color=darkgreen] at (\u,{\u*\u-0.02}) [above left] {$u_2^2$}; + +\schritt{3}{4} + +\draw[color=blue] ({sqrt(\a)},-0.01) -- ({sqrt(\a)},\a); +\node[color=blue] at ({sqrt(\a)-0.02},0) [below right] {$\sqrt{a}$}; + +\draw[->] (-0.01,0) -- (1.05,0) coordinate[label={$u$}]; +\node at (1,0) [below] {$1$}; +\node at (0,1) [left] {$1$}; +\draw (1,-0.01) -- (1,0.01); + +\end{tikzpicture} +\end{document} + |