I am having problems to understand the notation of a WolframAlpha result. Evaluating this equation, I am getting following:
$$-4 \ ||-u + x||_2 \ (-z + ||-u + x||_2^2) \ \text{Norm}^{(1,0)}(-u + x, 2)$$
How can I interpret the following notation: $\text{Norm}^{(1,0)}(-u + x, 2)$? I do not get the $(1,0)$ part in the exponential.