Hello,

I have a network that solves the XOR problem, however struggles with funcitons like z = y + x if I mix positive and negative values of x and y, or y=x^2 seems tough as well...

Is it enough to declare the network as fully working since it solves the XOR?

Plus any ideas why can't seem to get it to learn in 3D? It does ok if all inputs are positive, even if learning z = y^2 + x^2, but as soon as mix inputs with +ve and -ve again it strggles a lot.

Thank you