建立一个含单隐层的双输入单输出网络，实现异或问题：

x1(1)=0 x2(1)=1 d(1)=1

x1(2)=1 x2(2)=0 d(2)=1

x1(3)=1 x2(3)=1 d(3)=0

x1(4)=0 x2(4)=0 d(4)=0

训练出相应的网络权值矩阵W-Establish a dual-input single-output network with a single hidden layer,solve the XOR problem:

x1 (1) = 0 x2 (1) = 1 d (1) = 1

x1 (2) = 1 x2 (2) = 0 d (2) = 1

x1 (3) = 1 x2 (3) = 1 d (3) = 0

x1 (4) = 0 x2 (4) = 0 d (4) = 0

figure out the network weights matrix W