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Main.py
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Main.py
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import math
class Vector2D:
def __init__(self, x, y):
self.x = x
self.y = y
def __str__(self):
return f"({self.x}, {self.y})"
def __eq__(self, other):
if isinstance(other, Vector2D):
return self.x == other.x and self.y == other.y
return False
def __add__(self, other):
if isinstance(other, Vector2D):
return Vector2D(self.x + other.x, self.y + other.y)
raise TypeError("unsupported operand type(s) for +: "
f"'{type(self).__name__}' and '{type(other).__name__}'")
def __sub__(self, other):
if isinstance(other, Vector2D):
return Vector2D(self.x - other.x, self.y - other.y)
raise TypeError("unsupported operand type(s) for -: "
f"'{type(self).__name__}' and '{type(other).__name__}'")
def copy(self):
return Vector2D(self.x, self.y)
def cross(self, other):
if isinstance(other, (int, float)):
self.x *= other
self.y *= other
else:
raise TypeError("unsupported operand type for *: "
f"'{type(self).__name__}' and '{type(other).__name__}'")
def norm(self):
return math.sqrt(self.x ** 2 + self.y ** 2)
def angle(self, other):
if isinstance(other, Vector2D):
return math.acos((self.x * other.x + self.y * other.y) / (self.norm() * other.norm()))
raise TypeError("unsupported operand type for angle(): "
f"'{type(self).__name__}' and '{type(other).__name__}'")