(self, parameter='t')
return [t, 0, 1]
The plot interval for the default geometric plot of the polygon.

        Parameters
        ==========

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

        Returns
        =======

        plot_interval : list (plot interval)
            [parameter, lower_bound, upper_bound]

        Examples
        ========

        >>> from sympy import Polygon
        >>> p = Polygon((0, 0), (1, 0), (1, 1))
        >>> p.plot_interval()
        [t, 0, 1]
The plot interval for the default geometric plot of the polygon.
The plot interval for the default geometric plot of the polygon .
def plot_interval(self, parameter='t'):
        """The plot interval for the default geometric plot of the polygon.

        Parameters
        ==========

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

        Returns
        =======

        plot_interval : list (plot interval)
            [parameter, lower_bound, upper_bound]

        Examples
        ========

        >>> from sympy import Polygon
        >>> p = Polygon((0, 0), (1, 0), (1, 1))
        >>> p.plot_interval()
        [t, 0, 1]

        """
        t = Symbol(parameter, real=True)
        return [t, 0, 1]
def plot_interval ( self , parameter = 't' ) : t = Symbol ( parameter , real = True ) return [ t , 0 , 1 ]