search for: kinv

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2005 May 03
2
Fwd: Re: eigenvalues of a circulant matrix
Looks like the files did not go through again. In any case, here is the kinv: please cut and paste and save to a file: -1.16801E-03 -2.24310E-03 -1.16864E-03 -2.24634E-03 -1.17143E-03 -2.25358E-03 -1.17589E-03 -2.26484E-03 -1.18271E-03 -2.27983E-03 -1.19124E-03 -2.29896E-03 -1.20164E-03 -2.32206E-03 -1.21442E-03 -2.34911E-03 -1.22939...
2005 May 02
14
eigenvalues of a circulant matrix
...n for an excellent discussion on this). The matrix created by the attached row and obtained using the following commands indicates no imaginary parts for the eigenvectors. It appears that the real values are close, but not exactly so, and there is no imaginary part whatsoever. x<-scan("kinv.dat") #length(x) = 216 y<-x[c(109:216,1:108)] X<-toeplitz(y) eigen(X)$vectors Note that the eigenvectors are correct, and they are indeed real, because X is symmetric. Is this a bug in R? Any insight if not, please! Many thanks and best wishes! This is unrelated, but can the R...
2015 Mar 31
7
Wanted: smartcard with ECDSA support
Hi list, I have no idea if Damien Miller had the time to work on that. I have an initial patch to authenticate using PKCS#11 and ECDSA keys. This requires OpenSSL 1.0.2, prior OpenSSL versions do not expose the required interfaces to override the signature function pointer for ECDSA. The only limitation is that the OpenSSL API misses some cleanup function (finish, for instance), hence I have yet