Mario Rodriguez pisze: > > Excuse me, > > I forgot the definition of fun: > > fun(x,y):= GiveSLogPhi(x,y,0.5+%i,10000,100)$ > > >>> draw3d( >>> explicit(fun, r,-1,1,i,-1,1), >>> contour = map); > > Now it should work. > Yes. It works now. Thx. I will check it. Adam