plot_interval.py 文件源码

def vrange(self):
        """
        Yields v_steps+1 sympy numbers ranging from
        v_min to v_max.
        """
        d = (self.v_max - self.v_min) / self.v_steps
        for i in xrange(self.v_steps + 1):
            a = self.v_min + (d * Integer(i))
            yield a