def check_backward(self, x_data, y_grad): gradient_check.check_backward( functions.ELU(self.alpha), x_data, y_grad)
def check_backward(self, x_data, y_grad): gradient_check.check_backward(functions.ELU(self.alpha), x_data, y_grad, dtype=numpy.float64, **self.check_backward_options)