%% Mesh and Contour Plot of Mathematical Function
% Create a mesh/contour plot of the expression 
% $$ f(x,y) = \sqrt{x^2 + y^2} $$
% over the domain $-5 < x < 5$  and $-2\pi < y < 2\pi$ 
% with a computational grid size of 35-by-35.

% Copyright 2015 The MathWorks, Inc.



ezmeshc('sqrt(x^2 + y^2)',[-5,5,-2*pi,2*pi],35)