c = Circle((0, 0, 0), 1, xOyPlane)
A = Point(c)
O: (0, 0, 0)
a = Segment(O, A)
α = Angle(xAxis, a, xOyPlane)
B: (x(A), 0)
b = Segment(B, A)
d = Segment(B, O)
e: cos(α)
text1: "Pisteen $A$ x-koordinaatti on $\cos\alpha=" + (LaTeX[e]) + "$"
f: sin(α)
text2: "Pisteen $A$ y-koordinaatti on $\sin\alpha=" + (LaTeX[f]) + "$"