t = 0 (slider from 0 to 1, step 0.0010)
B1 = (5, 5)
P0 = (-3, -1)
u = Vector(P0, B1)
su: t * u
B2 = (5, 0)
v = Vector(B1, B2)
PT: P0 + su
sv: v * t * t
B: B1 + sv
svPT: sv
P: PT + svPT