Hello,
while testing the crossprod() function under Linux, I noticed the following:
set.seed(883)
x <- rnorm(100)
x %*% x - sum(x^2) # equal to 1.421085e-14
Is this difference normal? It seems to be rather large for double precision.
Regards,
Alexis.
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On 16 Sep 2016, at 12:41 , Alexis Sarda wrote:
> Hello,
>
> while testing the crossprod() function under Linux, I noticed the following:
>
> set.seed(883)
> x <- rnorm(100)
> x %*% x - sum(x^2) # equal to 1.421085e-14
>
> Is this difference normal? It seems to be rather large for double preci
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