Module layer 

Dense layer implementation.

A Layer is a dense affine transform followed by an element-wise activation:

• z = W x + b
• y = activation(z)

The activation is stored in the layer so an Mlp can mix activation functions across layers.

Shape mismatches are treated as programmer error and will panic via assert!.

Structs

Layer

A dense layer: y = activation(Wx + b).

Enums

Init

Initialization scheme for layer weights.