Vectors

Fatma Kahveci
Coding
Page content
from math import hypot

class Vector:

  def __init__(self, x=0, y=0):
    self.x = x
    self.y = y

  def __abs__(self):
    return hypot(self.x, self.y)

  # Returns False if the magnitude of the vector is zero.
  # Otherwise, returns True.
  def __bool__(self):
    return(bool(abs(self)))
  • If __bool__ is not implemented, Python tries to invoke x.__len__(), and if that returns zero, bool returns False. Otherwise, bool returns True.