


lyngby_nn_edev - Entropic neural network, input 1st der.
function [dEV, H12] = lyngby_nn_edev(EY, H, X, W)
Input: EY Error on output
H Hidden layer output
X Neural network input
W Output weights
Output: dEV Derivative in a matrix
H12 Intermidiate result: 1-H.^2
First order derivative for input weights in the entropic
neural network.
See also: lyngby_nn_edew