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Freitag/mathematik.py
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14
Freitag/mathematik.py
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#/usr/bin/env python3
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def fak(n):
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if n == 0:
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return 1
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if n < 0:
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raise ValueError("Fak ist eine negative Zahl")
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if type(n) is not int:
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raise TypeError("Fak ist keine ganze Zahl")
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return n * fak(n-1)
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print(fak(4))
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