1. Has anyone succeed in saving the plotting output into a file in data format? (not graphic). Say, I have a function f(x) and let the maple to plot it in a region with 50 points; and now I'd like to save these 50 pairs of points (x,y) in a file in 50 rows x 2 columns.
2. I'd like to define a step function which may be plotted by maple. This is a simple example. >u:= proc(x,y) if x<3 then x+y else x^2+y^2 fi; end;
Now if I do >u(1,2); 3 >u(5,1); 26 Seems no problem, but if I do >plot(u(x,1), x=0..5); Error, (in u) cannot evaluate boolean