(self)
return self.focus_distance / self.major
The eccentricity of the ellipse.

        Returns
        =======

        eccentricity : number

        Examples
        ========

        >>> from sympy import Point, Ellipse, sqrt
        >>> p1 = Point(0, 0)
        >>> e1 = Ellipse(p1, 3, sqrt(2))
        >>> e1.eccentricity
        sqrt(7)/3
The eccentricity of the ellipse.
The eccentricity of the ellipse .
def eccentricity(self):
        """The eccentricity of the ellipse.

        Returns
        =======

        eccentricity : number

        Examples
        ========

        >>> from sympy import Point, Ellipse, sqrt
        >>> p1 = Point(0, 0)
        >>> e1 = Ellipse(p1, 3, sqrt(2))
        >>> e1.eccentricity
        sqrt(7)/3

        """
        return self.focus_distance / self.major
def eccentricity ( self ) : return self . focus_distance / self . major