Method rotatea

numericals.py:103–105

(self, ang: float)

    return dx * dx + dy * dy

  def rotatea(self, ang: float) -> Point:
    sinb, cosb = np.sin(ang), np.cos(ang)
    return self.rotate(sinb, cosb)

  def rotate(self, sinb: float, cosb: float) -> Point:
    x, y = self.x, self.y