spinorBetween method

Vector spinorBetween(
  1. Vector vec
)

Implementation

Vector spinorBetween(Vector vec) {
  final d = lengthSqr;
  final r = (vec.x * x + vec.y * y) / d;
  final i = (vec.y * x - vec.x * y) / d;
  return Vector(r, i);
}