def Selu(x,
alpha=1.6732632423543772848170429916717,
lmbda=1.0507009873554804934193349852946):
return lmbda * np.where(x > 0, x, alpha * np.expm1(x))
def Elu(x, a=1., **unused_kwargs):
return np.where(x > 0, x, a * np.expm1(x))
