如何在python中将无理数显示为100个小数位? [英] how can i show an irrational number to 100 decimal places in python?

问题描述

我试图找到2到100个小数位的平方根，但是默认情况下它只显示为10，我该如何更改呢?

I am trying to find the square root of 2 to 100 decimal places, but it only shows to like 10 by default, how can I change this?

推荐答案

十进制模块派上用场. /p>

decimal module comes in handy.

>>> from decimal import *
>>> getcontext().prec = 100
>>> Decimal(2).sqrt()
Decimal('1.414213562373095048801688724209698078569671875376948073176679737990732478462107038850387534327641573')

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