MATLAB学习（八）神经网络拟合工具箱 Neural Net Fitting使用示例

>> x=-3:0.2:5;y=x.^2-1;xn=-2:0.1:7; >> 　　     >> %多元函数(z=sin(x2+y2)/(x2+y2))拟合 >> [X,Y]=meshgrid(-2:0.2:2);Z=sin(X.^2+Y.^2)./(X.^2+Y.^2+eps); >> SX=[X(:),Y(:)];SZ=Z(:); [nX,nY]=meshgrid(-3:0.1:3);NX=[

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