p = (8.6602545,5.0)
p.magnitude() = 10.0
p.amplitude() = 0.5235987755982987
p.magnitude() = 10.0
p.amplitude() = 1.0471975511965976
p.magnitude() = 10.0
p.amplitude() = 1.5707963267948963
p.magnitude() = 10.0
p.amplitude() = -2.9403902792268244E-16