import numbers
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class Polynomial:
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def __init__(self, coe):
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if coe[-1] == 0.0:
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raise RuntimeError("Coefficient invalid")
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self._coe = tuple(coe)
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def getExponent(self, n):
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"""
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:param: n der n-Expoment des Polynom
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"""
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return self._coe[n]
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def getExponents(self):
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return tuple(self._coe)
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def eval(self, x:float) -> float:
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"""
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Den Wert des Polynoms an der Stelle x berechnen
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"""
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wert = 0
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for c in self._coe[-1:0:-1]:
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wert = (wert + c)*x
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print(c, wert)
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wert += self._coe[0]
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return wert
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def __call__(self, value:float) -> float:
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if isinstance(value, numbers.Number):
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return self.eval(value)
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else:
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raise TypeError("Bad argument, expected a number")
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def __getitem__(self, idx:int) -> float:
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if idx >= 0 and idx < len(self._coe):
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return self._coe[idx]
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else:
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raise IndexError("idx invalid")
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