-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Just curious: given the principal eigenvector by the power method, would it be appropriate to calculate the associated eigenvalue by postmultiplying the eigenvector by the original matrix and then dividing (say) the first element of that new vector by the first element of the principal eigenvector?
I did that with John's approach last night and got a principal eigenvalue around 5 for Coyle's 4x4 matrix, about 20-25% high, as I recall. I don't know if that error is due to deviations between his eigenvector and the one John's algorithm calculated, to a numerical error in my approach, or due to my algorithm being fundamentally flawed. Thanks, Bill - -- Bill Harris http://facilitatedsystems.com/weblog/ Facilitated Systems Everett, WA 98208 USA http://facilitatedsystems.com/ phone: +1 425 337-5541 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (MingW32) Comment: For more information, see http://www.gnupg.org iD8DBQFEB0EU3J3HaQTDvd8RAssjAJ9b4dHWx1IW4OvTSu7O1ou2HrqJgQCeOTR6 EhYiKnZ0FsnMSD/lL+rtcKM= =PXD/ -----END PGP SIGNATURE----- ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
