t = 0 (slider from 0 to 1, step 0.02)
A: ((10 * t), 1)
B: (((10 * t) * t), -1)
a = CurveCartesian((10 * t), 1, t, 0, 1)
b = CurveCartesian(((10 * t) * t), -1, t, 0, 1)