krj@utcsri.UUCP (08/13/87)
NA Digest Thursday, August 13, 1987 Volume 87 : Issue 65 This weeks Editor: Cleve Moler Today's Topics: e-mail in july paper wanted John Gilbert is moving Eigenvector Eigenvalue Test Suite ---------------------------------------------------------------------- Date: Thu 6 Aug 87 09:16:06-PDT From: PROSKUROWSKI@ECLC.USC.EDU Subject: e-mail in july To: na@SCORE.STANFORD.EDU All e-mail sent to me in the month of July was lost or returned. Now it is again possible to reach me via NANET. Wlodek ------------------------------ Date: Fri, 7 Aug 87 13:56:31 PDT From: mkent@src.DEC.COM (Mark Kent) To: na@score.stanford.edu Subject: paper wanted I am looking for some typed notes written by J.L Howland of the University of Ottawa entitled "On the construction of gaussian quadrature formulae" from around 1975. I earlier sent this request to a group of quadrature people but the notes didn't turn up. Howland is away from UofO and they won't tell me where he is. If anyone has these notes please mail to me before sending them so that I can ensure that multiple copies don't swamp the US mail system. Thanks, -mark e-mail: kent@score.stanford.edu, mkent@src.dec.com OR just reply to this message since na-request@score.stanford.edu gets sent to me anyway. ------------------------------ Date: Sat, 8 Aug 87 22:40:58 EDT From: jrg@gvax.cs.cornell.edu (John Gilbert) To: na@score.stanford.edu Subject: John Gilbert is moving On 14 August 1987 I will move from Cornell to CMI: John R. Gilbert Christian Michelsen Institute Department of Science and Technology Fantoftveien 38 N-5036 Fantoft, Bergen NORWAY Telephone 47-5-28-44-10 Electronic mail to na.gilbert@score.stanford.edu will continue to reach me. Keep in touch! - John ------------------------------ Date: Sat, 8 Aug 87 15:52:13 PDT From: edel%zodiac@ads.arpa (Danny Edelson) To: na-request@score.stanford.edu Subject: Eigenvector Eigenvalue Test Suite ReSent-Date: Mon 10 Aug 87 16:09:12-PDT ReSent-From: Mark Kent <KENT@Sushi.Stanford.EDU> ReSent-To: na@Score.Stanford.EDU I'm not usually involved with this type of thing, but I've just found myself in need of an Eigenvector/value routine. Since I haven't worked in FORTRAN in a *very* long time, I decided to copy the Jacobi transformation routine from "Numerical Recipes" into Lisp. My problem: I think I have it working, but I don't have enough known solutions to test it with. Does anyone have a set of symmetric matrices and their eigenvectors and normalized eigenvalues that I can use as a test suite? The routine that I coded is, I believe, JACOBI out of EISPACK, so if anyone has run a set of matrices through JACOBI recently, I'd love to see the results. Thanks, Danny Edelson Advanced Decision Systems edel@ads.arpa 415/941-3912 ------------------------------ End of NA Digest ************************** -------