function [ know, x ] = p09_sol ( )

%*****************************************************************************80
%
%% P09_SOL returns the solution for problem 9.
%
%  Licensing:
%
%    This code is distributed under the GNU LGPL license.
%
%  Modified:
%
%    25 January 2008
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Output, integer KNOW.
%    If KNOW is 0, then the solution is not known.
%    If KNOW is positive, then the solution is known, and is returned in X.
%
%    Output, real X, the solution, if known.
%
  know = 1;

  x = 0.146621498932095;

  return
end
