问题描述：
matlab绘制函数曲线 d=0:0.001:12; x=d/2000;
y=-2.64*10^(-18).*(1./(x.^2+2.*x)+1./(x.^2+2.*x+1)+2.*(log((x.^2+2.*x))-log
((x.^2+2.*x+1)))).*(1./(1+1.77.*0.0628.*d));
一下午了头晕,SOS
y=-2.64*10^(-18).*(1./(x.^2+2.*x)+1./(x.^2+2.*x+1)+2.*(log((x.^2+2.*x))-log
((x.^2+2.*x+1)))).*(1./(1+1.77.*0.0628.*d));
一下午了头晕,SOS
问题解答：
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