% -*- texinfo -*-
% @deftypefn {Function File} {} ezcontour (@var{f})
% @deftypefnx {Function File} {} ezcontour (@dots{}, @var{dom})
% @deftypefnx {Function File} {} ezcontour (@dots{}, @var{n})
% @deftypefnx {Function File} {} ezcontour (@var{h}, @dots{})
% @deftypefnx {Function File} {@var{h} =} ezcontour (@dots{})
%
% Plots the contour lines of a function. @var{f} is a string, inline function
% or function handle with two arguments defining the function. By default the
% plot is over the domain @code{-2*pi < @var{x} < 2*pi} and @code{-2*pi <
% @var{y} < 2*pi} with 60 points in each dimension.
%
% If @var{dom} is a two element vector, it represents the minimum and maximum
% value of both @var{x} and @var{y}. If @var{dom} is a four element vector,
% then the minimum and maximum value of @var{x} and @var{y} are specify
% separately.
%
% @var{n} is a scalar defining the number of points to use in each dimension.
%
% The optional return value @var{h} provides a list of handles to the
% the parts of the vector field (body, arrow and marker).
%
% @example
% @group
% f = @@(x,y) sqrt(abs(x .* y)) ./ (1 + x.^2 + y.^2);
% ezcontour (f, [-3, 3]);
% @end group
% @end example
%
% @seealso{ezplot, ezcontourf, ezsurfc, ezmeshc}
% @end deftypefn