> > What is the result from typing > > type(Z) > norm([Z[-1,0]])
Actually, I don't know how your data are arranged, so try all 4 corners: norm([Z[0,0], Z[0,-1], Z[-1,0], Z[-1,-1]]) Eric ------------------------------------------------------------------------------ Apps built with the Adobe(R) Flex(R) framework and Flex Builder(TM) are powering Web 2.0 with engaging, cross-platform capabilities. Quickly and easily build your RIAs with Flex Builder, the Eclipse(TM)based development software that enables intelligent coding and step-through debugging. Download the free 60 day trial. http://p.sf.net/sfu/www-adobe-com _______________________________________________ Matplotlib-users mailing list Matplotlib-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-users