Date: 13 Juli 2013

A = (5, 0)
B = (2, 3)
u = Vector((0, 0), A)
v = Vector((0, 0), B)
a = OrthogonalLine(B, u)
C = Intersect(a, xAxis)
v' = Vector((0, 0), C)
D: (0, (-1 * x(C)))
Flächeninhalt, b, a_1, c, d = Polygon((0, 0), A, A + D, D)
α_1 = Angle(A, C, B)
text1: "Skalares \quad Produkt: \quad  \vec u \cdot \vec v = " + ((u * v))
S = (0, 0)
α = Angle(A, S, B)