eq1: x^(2) + (20 * y^(2)) + (20 * z^(2)) = 30
eq2: x = 0
a = 1.1 (slider from -5 to 5)
b = 1.2 (slider from -5 to 5)
p: (a * y) + (b * z) = 0
u = OrthogonalVector(p)