Equation Icon  g = 1, (41) b = 1, (42) q = a = z = z = z = z , (43) 3 12 2 3 4 a = - -8(c3 +-c1c4)-, (44) 1 2c1 - c21 + c23 2 2 2 a2 = (2c13---c14) - 12c3c13-+-2c2c14(1---2c14)-+-(c1--c3)(4---6c13 +-7c14), (45) c123(2- c14) (2 - c14)(2c1 - c21 + c23)