'Yields v_steps+1 sympy numbers ranging from
v_min to v_max.'

@require_all_args
def vrange(self):

    d = ((self.v_max - self.v_min) / self.v_steps)
    for i in range((self.v_steps + 1)):
        a = (self.v_min + (d * Integer(i)))
        (yield a)
