On Mon, Jan 25, 2010 at 12:55:47PM -0500, Geethmala wrote: > I had started from 1 instead of 0. I think that was the problem. The mantra is: "This is not Matlab." ;-) Cheers, Michael -- GPG key: 1024D/3144BE0F Michael Hanke http://mih.voxindeserto.de