[julia-users] Re: Plotting the Rosenbrock Function using PyPlot

[Steven G. Johnson]

This works, for example:

x, y = -1.5:0.1:1.5, -1.5:0.1:1.5
z = Float64[rosenbrock([x,y]) for x in x, y in y]

using PyPlot
pcolor(x,y,z)