%-------------------------------------%
% Homework 5: 4.1                     %
% Date: 10/21/2002                    %
%                                     %
% Gun Srijuntongsiri                  %
% gs61                                %
% ??????                              %
%-------------------------------------%

% Variables:
%   t = free variable running from -9 to 9
%   y = y(t) from the equation

format compact      % Suppress extra space b/w lines
disp('    t    y');   % header of tables

% Calculate for t between -9 and 9 in steps of .5
for t = -9:.5:9

  % Depend on t, calculate y(t) accordingly
  if t>=0
    y = -3*t^2+5;
  else
    y=3*t^2 + 5;
  end
  disp([t,y]);
end