kraina tęczy

X=[1 1; 2 2; 2 1; 1 2];
Y =[1; 1; 0; 0];
net = newff([0 3; 0 3], [2 1], {'tansig' 'purelin'}, 'trainlm');
net =init(net);
net.trainParam.epochs = 200;
net.trainParam.goal=0.0000001;
net=train(net, X', Y');
[X1 Y1] = meshgrid(0:0.1:3);
Z=X1;
Z(:)=sim(net,[X1(:)'; Y1(:)']);
surf(X1, Y1, Z);