Function check_para

numericals.py:687–693

(points: list[Point])

def check_para(points: list[Point]) -> bool:
  a, b, c, d = points
  ab = Line(a, b)
  cd = Line(c, d)
  if ab.same(cd):
    return False
  return ab.is_parallel(cd)


def check_perp(points: list[Point]) -> bool: