[R] help for the first poster- a simple question

From: Xuejun Qin <xjq_at_chg.duhs.duke.edu>
Date: Mon, 03 Mar 2008 12:52:43 -0500


Hi, there,
I cannot get accurate value for calculation. for example:
ld<-sqrt(1*0.05*0.95*0.05*0.95)
0.05*0.95-ld=-6.938894e-18
0.05*0.95-ld==0 is False.

I met this problem in my program, how can I handle it. Thanks.

xj.



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