'The first defining point of a linear entity.
See Also
sympy.geometry.point.Point
Examples
>>> from sympy import Point, Line
>>> p1, p2 = Point(0, 0), Point(5, 3)
>>> l = Line(p1, p2)
>>> l.p1
Point2D(0, 0)'

@property
def p1(self):

    return self.args[0]
