(self, parameter='t')
return [t, -S.Pi, S.Pi]
The plot interval for the default geometric plot of the Ellipse.

        Parameters
        ==========

        parameter : str, optional
            Default value is 't'.

        Returns
        =======

        plot_interval : list
            [parameter, lower_bound, upper_bound]

        Examples
        ========

        >>> from sympy import Point, Ellipse
        >>> e1 = Ellipse(Point(0, 0), 3, 2)
        >>> e1.plot_interval()
        [t, -pi, pi]
The plot interval for the default geometric plot of the Ellipse.
The plot interval for the default geometric plot of the Ellipse .
def plot_interval(self, parameter='t'):
        """The plot interval for the default geometric plot of the Ellipse.

        Parameters
        ==========

        parameter : str, optional
            Default value is 't'.

        Returns
        =======

        plot_interval : list
            [parameter, lower_bound, upper_bound]

        Examples
        ========

        >>> from sympy import Point, Ellipse
        >>> e1 = Ellipse(Point(0, 0), 3, 2)
        >>> e1.plot_interval()
        [t, -pi, pi]

        """
        t = _symbol(parameter)
        return [t, -S.Pi, S.Pi]
def plot_interval ( self , parameter = 't' ) : t = _symbol ( parameter ) return [ t , - S . Pi , S . Pi ]