a = 1 (slider from -5 to 5)
c = 2 (slider from -5 to 5)
b: x^(2) / a^(2) + y^(2) / a^(2) - z^(2) / c^(2) = 1
v = 1.2 (slider from 0 to (2 * π))
e = CurveCartesian((a * cos(v)) - ((t * a) * sin(v)), (a * sin(v)) + ((t * a) * cos(v)), ((-t) * c), t, -10, 10)
d = CurveCartesian((a * cos(v)) - ((t * a) * sin(v)), (a * sin(v)) + ((t * a) * cos(v)), (t * c), t, -10, 10)