x = [0, 10, 20, 30, 40, 50]; %time in minutes
y = [0, 60, 120, 280, 150, 40]; %distance travelled in x minutes
xForward = x(1:end-1); % define the domains to perform forward differences for x
yForward = y(1:end-1); % define the domains to perform forward differences for y
diffX = x(2:end) - xForward;
diffY = y(2:end) - yForward;
diff(y) %used to verify the forward difference calculated above
