function mean = student_mean ( a, b, c )
%*****************************************************************************80
%
%% student_mean() returns the mean of the central Student T PDF.
%
% Licensing:
%
% This code is distributed under the MIT license.
%
% Modified:
%
% 02 November 2005
%
% Author:
%
% John Burkardt
%
% Input:
%
% real X, the argument of the PDF.
%
% real A, B, shape parameters of the PDF,
% used to transform the argument X to a shifted and scaled
% value Y = ( X - A ) / B. It is required that B be nonzero.
% For the standard distribution, A = 0 and B = 1.
%
% real C, is usually called the number of
% degrees of freedom of the distribution. C is typically an
% integer, but that is not essential. It is required that
% C be strictly positive.
%
% Output:
%
% real MEAN, the mean of the PDF.
%
mean = a;
return
end