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import math
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class Point:
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__x__ = 0.0
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__y__ = 0.0
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def __init__(self, x = 0.0, y = 0.0):
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self.__x__ = x
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self.__y__ = y
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def __str__(self):
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return f"({self.__x__:.3f},{self.__y__:.3f})"
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def __neg__(self):
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return Point(-self.__x__, -self.__y__)
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def __add__(self, other):
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x = 0.0
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y = 0.0
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if isinstance(other, Point):
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return Point(self.__x__ + other.__x__, self.__y__ + other.__y__)
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elif isinstance(other, int) or isinstance(other, float):
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return Point(self.__x__ + other, self.__y__ + other)
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else:
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raise ValueError("Operand must be Point, int or float.")
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def __radd__(self, other):
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return self + other
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def __sub__(self, other):
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if isinstance(other, Point) or isinstance(other, int) or isinstance(other, float):
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return self + (-other)
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else:
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raise ValueError("Operand must be Point, int or float.")
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def __rsub__(self, other):
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return self - other
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def __mul__(self, other):
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if isinstance(other, Point):
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return Point(self.__x__ * other.__x__, self.__x__ * other.__y__)
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elif isinstance(other, int) or isinstance(other, float):
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return Point(self.__x__ * other, self.__x__ * other)
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else:
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raise ValueError("Operand must be Point, int or float.")
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def __rmul__(self, other):
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return self * other
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def rot(self, degree):
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x = math.cos(degree) * self.__x__ + math.sin(degree) * self.__y__
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y = -math.sin(degree) * self.__x__ + math.cos(degree) * self.__y__
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return Point(x, y)
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def get_x(self):
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return self.__x__
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def get_y(self):
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return self.__y__
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p1 = Point()
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p2 = Point(1, 1)
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print(p2.rot(math.pi * 2))
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