function t = p12_vertices ( dummy )

%% P12_VERTICES returns the vertices for problem 12.
%
%  Modified:
%
%    09 April 2007
%
%  Author:
%
%    John Burkardt
%
%  Parameters:
%
%    Output, real T(2,3), the vertices.
%
  t(1:2,1:3) = [
    -1.0, -3.0; ...
     3.0, -2.0; ...
    -1.0,  2.0 ]';