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m_r
2001 Jul 16
1
polyroot() (PR#751)
In a bug report from Nov.28 2000, Li Dongfeng writes:
-----
I have found that the polyroot()
function in R-1.1.1(both solaris
and Win32 version) gives totally
incorrect result. Here is the offending
code:
# Polyroot bug report:
# from R-1.1.1
> sort(abs(polyroot(c(1,-2,1,0,0,0,0,0,0,0,0,0,-2,5,-2,0,0,0,0,0,0,0,0,0,1,-2))))
[1] 0.8758259 0.9486499 0.9731015 1.5419189 1.7466214 1.7535362