[R] What is ".Machine$double.eps"?

Saji Ren saji.ren at gmail.com
Thu Dec 24 07:07:27 CET 2009


Hello,everyone:

I met this notation when I read the original code of function "quantile".There is one sentence as below:
>eps <- 100 * .Machine$double.eps

when I input ".Machine$double.eps" in R, it returns "[1] 2.220446e-16".
Can anyone show me the exact meaning about that?

thanks

Saji from Shanghai


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