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  1. from decimal import localcontext
  2. with localcontext() as ctx:
  3.     print(ctx.Emax) # デフォルトの指数上限は999999なので、今回の計算だと足りない
  4.     ctx.Emax = 9999999999 # 指数上限を増やす
  5.     s = ctx.power(2,2147483647)
  6.     print(s)
  7.     #必要に応じて有効桁を調整する
  8.     format_str = "{:.1e}".format(s)
  9.     print(format_str)
  10.  
Success #stdin #stdout 0.03s 10040KB
comments (?)
stdin 
Standard input is empty
stdout 
999999
8.808065258419816766037465749E+646456992
8.8e+646456992
https://ideone.com/exndwC
language:
Python 3 nbc (python 3.7.3)
created:
2 years ago
visibility:
secret

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