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# Wurzelspirale
Dies ist ein kleines Skript, um zu testen, ob sich die Wurzelspirale
von [Mathematik fürs Gymnasium](https://www.hep-verlag.ch/math-gym1)
Seite 239, Abb. 5.1.2 sich schliesst.
Das Skipt ist bewusst simple gehalten, um einen Einstieg ins
Programmieren zu bieten.

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wurzelspirale.py Normal file
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#!/usr/bin/env python3
from math import sin, cos, tan, asin, acos, atan, pi
def main(args):
# Lese falls vorhanden das erste Argument ein. Sonst setzten wir
# einen Defaultwert.
print(args[0])
try:
n = int(args[1])
except (IndexError, ValueError):
n = 20
alpha = 0 # Winkel der ganzen Spirale in Rad
# Wir gehen jedes Dreieck durch und lassen alpha grösser werden.
for i in range(1, n):
# Hier musst du das Programm anpassen.
g = 30*i # Gegenkathete
a = 20*i # Ankatete
h = 40*i # Hypothenuse
beta = asin(g/h)
print('arcossin =', asin(g/h))
# Ab hier geht es mit dem Algorithmus weiter:
alpha += beta
print(f"Nach {i} Dreiecken beträgt alpha {alpha}.")
print(f"Dies sind {alpha/pi*180}°.")
return 0
if __name__ == '__main__':
import sys
sys.exit(main(sys.argv))