Function Reference
— Function File: ezmesh (f)
— Function File: ezmesh (fx, fy, fz)
— Function File: ezmesh (..., dom)
— Function File: ezmesh (..., n)
— Function File: ezmesh (..., 'circ')
— Function File: ezmesh (h, ...)
— Function File: h = ezmesh (...)

Plots the mesh defined by a function. f is a string, inline function or function handle with two arguments defining the function. By default the plot is over the domain -2*pi < x < 2*pi and -2*pi < y < 2*pi with 60 points in each dimension.

If dom is a two element vector, it represents the minimum and maximum value of both x and y. If dom is a four element vector, then the minimum and maximum value of x and y are specify separately.

n is a scalar defining the number of points to use in each dimension.

If three functions are passed, then plot the parametrically defined function [fx (s, t), fy (s, t), fz (s, t)].

If the argument 'circ' is given, then the function is plotted over a disk centered on the middle of the domain dom.

The optional return value h provides a list of handles to the the parts of the vector field (body, arrow and marker).

          f = @(x,y) sqrt(abs(x .* y)) ./ (1 + x.^2 + y.^2);
          ezmesh (f, [-3, 3]);

An example of a parametrically defined function is

          fx = @(s,t) cos (s) .* cos(t);
          fy = @(s,t) sin (s) .* cos(t);
          fz = @(s,t) sin(t);
          ezmesh (fx, fy, fz, [-pi, pi, -pi/2, pi/2], 20);

Demonstration 1

The following code

 f = @(x,y) sqrt(abs(x .* y)) ./ (1 + x.^2 + y.^2);
 ezmesh (f, [-3, 3]);

Produces the following figure

Demonstration 2

The following code

 fx = @(s,t) cos (s) .* cos(t);
 fy = @(s,t) sin (s) .* cos(t);
 fz = @(s,t) sin (t);
 ezmesh (fx, fy, fz, [-pi,pi,-pi/2,pi/2], 20);

Produces the following figure