A fuel supply system for a vehicle is provided with a fuel pump disposed in a fuel tank sitting astride a vehicle body frame. Coordinate information, in the form of homogeneous coordinates, of the graphics primitive determines whether the graphics primitive is to be rendered. The terminal determines and communicates a randompseudo-random guesstimation to the electronic check medium in response to receiving the verification code, the randompseudo-random guesstimation being configured to verify that the electronic check medium is authentic. The first, second, third and fourth lens groups commonly form a finite conjugative system of magnification variation.