質問編集履歴
1
加算以外の減算・乗算・除算への応用
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@@ -144,6 +144,154 @@
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##追記
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無事、加算については解決いたしました。ありがとうございました。
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追加の質問なのですが、減算、乗算については同様に行えたのですが、除算が以下のようになってしまいます。解決方法がございましたら、教えていただけると幸いです。
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### 発生している問題・エラーメッセージ（追記）
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```
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2 / one_half
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---------------------------------------------------------------------------
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RuntimeError Traceback (most recent call last)
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<ipython-input-47-5bb4201c0f77> in <module>()
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----> 1 2 / one_half
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47
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48 def __rdiv__(self,other):
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---> 49 return 1 / (self / other)
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RuntimeError: maximum recursion depth exceeded while calling a Python object
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```
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### 該当のソースコード（追記）
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```python
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class Rat:
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n = 0
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d = 0
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def __init__(self, n, d=1):
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self.n = n
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self.d = d
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def __repr__(self):
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return '{}/{}'.format(self.n, self.d)
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def __add__(self,other):
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if isinstance(other,Rat) == False:
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other= Rat(other,1)
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else:
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pass
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return Rat((self.n * other.d) + (other.n * self.d), self.d * other.d)
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def __radd__(self,other):
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return self + other
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def __sub__(self,other):
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if isinstance(other,Rat) == False:
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other= Rat(other,1)
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else:
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pass
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return Rat((self.n * other.d) - (other.n * self.d), self.d * other.d)
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def __rsub__(self,other):
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return (self - other) * (-1)
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def __mul__(self,other):
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if isinstance(other,Rat) == False:
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other= Rat(other,1)
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else:
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pass
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return Rat(self.n * other.n, self.d * other.d)
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def __rmul__(self,other):
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return self * other
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def __div__(self,other):
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if isinstance(other,Rat) == False:
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other= Rat(other,1)
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else:
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pass
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return Rat(self.n * other.d, self.d * other.n)
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def __rdiv__(self,other):
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a = self / other
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return 1 / a
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```
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### 補足情報（FW/ツールのバージョンなど）
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148
296
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149
297
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anaconda-4.0.0
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