The function that returns the output layer size of a neural
network. Denoted \(\mathsf{O}\).
Usage
out(nu)
Value
An integer representing the output width of the neural network.
Arguments
nu
A neural network of the type generated by create_nn().
References
Definition 1.3.1. Jentzen, A., Kuckuck, B., and von Wurstemberger, P. (2023).
Mathematical introduction to deep learning: Methods, implementations,
and theory. https://arxiv.org/abs/2310.20360.