[R] sin(pi)?

Olivier Delaigue * olivier.delaigue at aix.cemagref.fr
Mon Sep 3 08:52:44 CEST 2007


> sin(3.141592653589793)
[1] 1.224606e-16

Regards,

Olivier Delaigue



Nguyen Dinh Nguyen wrote:
> 
> Dear all,
> I found something strange when calculating sin of pi value
> sin(pi)
> [1] 1.224606e-16
> 
>  pi
> [1] 3.141593
> 
>  sin(3.141593)
> [1] -3.464102e-07
> 
> Any help and comment should be appreciated. 
> Regards
> Nguyen
> 
> 
> 

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