function mean = angle_mean ( n )

%% ANGLE_MEAN returns the mean of the Angle PDF.
%
%  Modified:
%
%    01 September 2004
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Input, integer N, the spatial dimension.
%    N must be at least 2.
%
%    Output, real MEAN, the mean of the PDF.
%
  mean = pi / 2.0;