Numbers: What You Think Is Not What You Get
source link: https://yihui.org/cn/2007/05/numbers-what-you-think-is-not-what-you-get/
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Numbers: What You Think Is Not What You Get
谢益辉 / 2007-05-07
For example:
> 0.02 / 0.00000000001 - 2000000000
[1] 2.384186e-07
> 1000 * (.15 + .3) - 450
[1] -5.684342e-14
> 0.02/0.00000000001 == 2000000000
[1] FALSE
> 1000*(.15 + .3) == 450
[1] FALSE
Yes, this is too old a topic.
← My Emacs Does Not Speak Statistics :-( A Story I Told to My Group Members →
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