α = 2.373647782712288 rad (slider from 0° to 360°)
A = (2.33, 5.124)
A' = Rotate(A, α)
β = Angle(A, (0, 0), A')
f = Segment(A', (0, 0))
g = Segment(A, (0, 0))
X: (α, x(A'))
Y: (α, y(A'))
Ax: (x(A), 0)
Ay: (0, y(A))
Ax' = Rotate(Ax, α)
Ay' = Rotate(Ay, α)
u = Vector((0, 0), Ax)
v = Vector((0, 0), Ay)
w = Vector(Ax, A)
a = Vector((0, 0), Ax')
b = Vector(Ax', A')
c = Vector(Ay, A)
d = Vector(Ay', A')
e = Vector((0, 0), Ay')
p(x) = cos(x)
h(x) = sin(x)