function variance = chebyshev1_variance ( )

%*****************************************************************************80
%
%% CHEBYSHEV1_VARIANCE returns the variance of the Chebyshev1 PDF.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    01 August 2016
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Output, real VARIANCE, the variance of the PDF.
%
  variance = 0.5;

  return
end
