מכפלה סקלרית של שני וקטורי יחידה עם ההיטל

הצג היטל

A = Intersect(xAxis, yAxis)
B = (1, 0)
c = Circle(A, B)
C = Point(c)
u = Vector(A, C)
D = Point(c)
v = Vector(A, D)
a = OrthogonalLine(D, u)
b = Segment(A, C)
G: -C
e = Segment(G, C)
E = Intersect(e, a)
F = Midpoint(A, E)
α = Angle(D, E, G)
d = Segment(E, A)
f = Segment(D, E)
text1: "u·v =  " + (x(u) * x(v) + y(u) * y(v)) + ""
β = Angle(D, A, C)
text3: "u = " + u + ""
text4: "v = " + v + ""
text5: "|u| = " + (Length[u]) + ""
text6: "|v| = " + (Length[v]) + ""
g = false