Examples

R -> R

regression linear function 1:1 (role of hidden layers)

regression non-linear function 1:1 (role of hidden layers, derivative)

R^2 -> R^2 (vector field)

regression linear function 2:2 (role of hidden layers)

regression non-linear function 2:2 (role of hidden layers, derivative)

R^2 -> N (multi-class)

multi-class non-linear function 2:2