function mean = log_normal_mean ( mu, sigma )

%*****************************************************************************80
%
%% log_normal_mean() returns the mean of the Log Normal PDF.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    23 March 2016
%
%  Author:
%
%    John Burkardt
%
%  Input:
%
%    real MU, SIGMA, the parameters of the PDF.
%    0.0 < SIGMA.
%
%  Output:
%
%    real MEAN, the mean of the PDF.
%
  mean = exp ( mu + 0.5 * sigma ^ 2 );

  return
end
