function [ a, b ] = p23_interval ( )

%*****************************************************************************80
%
%% p23_interval() returns a starting interval for optimization for test 23.
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    24 February 2026
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    real A, B: the left and right endpoints of the interval.
%
  a = 2.7;
  b = 3.1;

  return
end

