Hi,
I apologize if there is a simple answer to this question that I've
missed. I did search the mailing list but I might not have used the
right keywords. Why does sum(A3^2) give the result of 1, but
sum(A3^2)==1 give the result of FALSE?
A3-matrix(nrow=3,c(1/(2^.5),1/(2^.5),0))
A3
On Sat, 2007-01-20 at 14:00 -0500, Robert Barber wrote:
Hi,
I apologize if there is a simple answer to this question that I've
missed. I did search the mailing list but I might not have used the
right keywords. Why does sum(A3^2) give the result of 1, but
sum(A3^2)==1 give the result of
Thank you very much. That was what I needed to know.
Bob B.
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and provide commented,
Hi Robert,
does this help?
http://cran.r-project.org/doc/FAQ/R-FAQ.html#Why-doesn_0027t-R-think-these-numbers-are-equal_003f
A3-matrix(nrow=3,c(1/(2^.5),1/(2^.5),0))
sum(A3^2)==1
all.equal(sum(A3^2), 1)
Cheers,
Andrew
On Sat, Jan 20, 2007 at 02:00:18PM -0500, Robert Barber wrote:
Hi,
I
