From dd95c65a823843e439b930fc8dad050003413e32 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20M=C3=BCller?= <andreas.mueller@ost.ch>
Date: Mon, 22 Nov 2021 20:57:40 +0100
Subject: new stuff

---
 buch/chapters/030-geometrie/images/deftrig.tex | 36 ++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 buch/chapters/030-geometrie/images/deftrig.tex

(limited to 'buch/chapters/030-geometrie/images/deftrig.tex')

diff --git a/buch/chapters/030-geometrie/images/deftrig.tex b/buch/chapters/030-geometrie/images/deftrig.tex
new file mode 100644
index 0000000..b7d0748
--- /dev/null
+++ b/buch/chapters/030-geometrie/images/deftrig.tex
@@ -0,0 +1,36 @@
+%
+% deftrig.tex -- Definition der trigonometrischen Funktionen
+%
+% (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,calc}
+\begin{document}
+\def\skala{1}
+\begin{tikzpicture}[>=latex,thick,scale=\skala]
+
+\coordinate (B) at (0,0);
+\coordinate (C) at (4,0);
+\coordinate (A) at (4,3);
+\fill[color=gray] (B) -- (0:1.5) arc (0:{atan(3/4)}:1.5) -- cycle;
+\node at ({0.5*atan(3/4)}:1) {$\alpha$};
+\draw (A) -- (B) -- (C) -- cycle;
+\fill (A) circle[radius=0.04];
+\fill (B) circle[radius=0.04];
+\fill (C) circle[radius=0.04];
+\node at ($0.5*(A)+0.5*(B)$) [above left] {$c$};
+\node at ($0.5*(B)+0.5*(C)$) [below] {$a$};
+\node at ($0.5*(C)+0.5*(A)$) [right] {$b$};
+\node at (A) [above right] {$A$};
+\node at (B) [below left] {$B$};
+\node at (C) [below right] {$C$};
+
+\end{tikzpicture}
+\end{document}
+
+---
-- 
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