'The eccentricity of the parabola.
Returns
eccentricity : number
A parabola may also be characterized as a conic section with an
eccentricity of 1. As a consequence of this, all parabolas are
similar, meaning that while they can be different sizes,
they are all the same shape.
See Also
https://en.wikipedia.org/wiki/Parabola
Examples
>>> from sympy import Parabola, Point, Line
>>> p1 = Parabola(Point(0, 0), Line(Point(5, 8), Point(7, 8)))
>>> p1.eccentricity
1
Notes
The eccentricity for every Parabola is 1 by definition.'

@property
def eccentricity(self):

    return S(1)
