x=0:.5:10; y=0.12*exp(-0.213*x)+0.54*exp(-0.17*x).*sin(1.23*x);
x0=[0:0.1:10]; y0=0.12*exp(-0.213*x0)+0.54*exp(-0.17*x0).*sin(1.23*x0);
nntool    % 啟動(dòng)神經(jīng)網(wǎng)絡(luò)擬合界面

y1=sim(network1,x0); plot(x,y,'o',x0,y0,x0,y1,':')