Method is_perp

numericals.py:232–235

(self, other: Line)

    return abs(a * y - b * x) < ATOM

  def is_perp(self, other: Line) -> bool:
    a, b, _ = self.coefficients
    x, y, _ = other.coefficients
    return abs(a * x + b * y) < ATOM

  def cross(self, other: Line) -> float:
    a, b, _ = self.coefficients