nndhopi.m

Martin T.Hagan等著,戴葵等译,神经网络设计,机械工业出版社,一书的所有例程

function yprime = nndhopi(t,y)
%NNDHOPI Calculates the derivative for sample Hopfield network
%
% NNDHOPI(t,y)
%   t - Current time
%   y - Current output
% Returns dy

global W;
global b;

% Assuming infinite Lambda:

yprime = 0.5*W*y;