只需一步,快速开始
x1=[0:0.1:25]; y1=exp(-1./2.*(x1-25).^2./(10^2)); x2=[25 50]; y2=[1 1]; x3=[50:0.1:100]; y3=exp(-1./2.*(x3-50).^2./(20^2)); x=[x1,x2,x3]; y=[y1,y2,y3]; plot(x,y);
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