def __init__(self, Gval):
self.args = (Gval, )
self.G = cExpr(Gval)
self._Z = 1 / Ys.G(self.G)
def __init__(self, Gval):
self.args = (Gval, )
Gval = cExpr(Gval, positive=True)
super(G, self).__init__(Ys.G(Gval))
self.G = Gval