Point N

Point P

t

-t

t+2π

f(x) = sin(x)
O = (0, 0)
t = 0.5168146928204145 (slider from -6.283185307179586 to 6.283185307179586, step 0.1)
M: (t, sin(t))
N: (-t, sin(-t))
a = Segment(N, M)
b = false
P: (t + 2 * π, sin(t + 2 * π))
u = Vector(M, P)
c = false
A: (t, 0)
d = Segment(M, A)
e: y ≥ 2
g: y ≤ -2
B: (-t, 0)
h = Segment(N, B)
C: (t + 2 * π, 0)
i = Segment(P, C)