p = -1.0707963267948966 (slider from ((-π)) / 2 to π / 2, step 0.05)
r = 6.283185307179586 (slider from 0 to (2 * π), step 0.05)
a = Surface((cos(u) * cos(v)), (cos(u) * sin(v)), sin(u), u, ((-π)) / 2, p, v, 0, r)
teksti1 = LaTeX(p, true, true)
b = CurveCartesian(0, cos(u), sin(u), u, 0, (2 * π))
A: (0, cos(p), sin(p))
B: (0, 0, 0)
f = Segment(A, B)
C: (5.0E-5, 1, 0)
α = Angle(C, B, A)