From: Alan G Isaac <aisaac@am...>  20050729 16:06:55

On Fri, 29 Jul 2005, Dimitri D'Or apparently wrote: > I have a twodimensional array from which I wish to > compute the gradient (i.e. the slope against the first and > second dimension). With Matlab, I can do it easily using > the gradient.m function. Is there something similar in > Scipy or matplotlib? I've browsed the documentation but > couldn't found anything but approximate gradient > computations on functions in the optimize module. Nothing > about computations on matrices. Look at scipy.diff. E.g., for the two dimensions grad0=scipy.diff(x,axis=0) grad1=scipy.diff(x,axis=1) hth, Alan Isaac 