% -*- texinfo -*-
% @deftypefn {Function File} {[@var{x}, @var{y}, @var{z}] =} sphere (@var{n})
% @deftypefnx {Function File} {} sphere (@var{h}, @dots{})
% Generates three matrices in @code{meshgrid} format, such that
% @code{surf (@var{x}, @var{y}, @var{z})} generates a unit sphere.
% The matrices of @code{@var{n}+1}-by-@code{@var{n}+1}. If @var{n} is
% omitted then a default value of 20 is assumed.
%
% Called with no return arguments, @code{sphere} call directly
% @code{surf (@var{x}, @var{y}, @var{z})}. If an axes handle is passed
% as the first argument, the surface is plotted to this set of axes.
% @seealso{peaks}
% @end deftypefn