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问题描述
在python中可以表示的最小数字是多少?
What is the smallest number which can be represented in python?
我看过像2.05623357236e-296
一样小,但是可以再小的吗?
I have seen as small as 2.05623357236e-296
but can there be any smaller?
推荐答案
>>> import sys
>>> sys.float_info
sys.float_info(max=1.7976931348623157e+308, max_exp=1024, max_10_exp=308, min=2.2250738585072014e-308, min_exp=-1021, min_10_exp=-307, dig=15, mant_dig=53, epsilon=2.220446049250313e-16, radix=2, rounds=1)
来自文档
min DBL_MIN minimum positive normalized float
min_exp DBL_MIN_EXP minimum integer e such that radix**(e-1) is a normalized float
在我的系统上,它被称为min=2.2250738585072014e-308
On my system it is mentioned as min=2.2250738585072014e-308
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