EZIPLOT

Interactive EZ Function Plotter

Description

The function plots in MATLAB® allows you to easily visualize functions:

http://www.mathworks.com/access/helpdesk/help/techdoc/ref/f16-6011seg07.html#f16-16089

This "eziplot" will create an interactive plot where all of the parameters become tunable. Just pass the function as an anonymous function, and it will automatically detect the parameters.

Any of the following function plots are supported: ezcontour, ezcontourf, ezmesh, ezmeshc, ezplot, ezplot3, ezpolar, ezsurf, ezsurfc, fplot

Created in R2008a, but should work in older releases.

Example:
  a = 1;
  eziplot({@(x) sin(a*x)});

  a = 1;
  b = 2;
  f2 = @(t) a*sin(b*t);
  f3 = @(t) b*cos(a*t);
  eziplot({f2, f3})

  a = 1;
  b = 1;
  f4 = @(x,y) y./(1 + a*x.^2 + b*y.^2);
  eziplot({f4}, 'plotfcn', 'ezmeshc');

• MATLAB release: MATLAB 7.6 (R2008a)

[John D'Errico]

Excellent help, that covers many of the cases that you might want to consider. It is lacking though. The figure shown on the web site shows a function parameterized by a pair of variables: (a, b). These parameters then result in a pair of sliders on the figure.

While that may be very nice as a feature, it is NEVER alluded to in the function help. I had to return to the website description to see an example of how this is accomplished. Since this seems to be one of the significant ways to use this code, even perhaps the most interesting way, I'd have expected to see some indication of that in the help. Tsk, tsk.

A very nice utility otherwise. I'll return to give this the rating it deserves when the help is repaired.

[John D'Errico]

Sorry. Ignore my previous comment. I looked at the help for ezplot, not eziplot. Eziplot is correct, and as I said, quite nice to use.