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dabingniubi

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[求助] 大神们看看这个程序哪里错了??不会啊!!自变量和因变量都知道,求参数。

claer all
g=0;
h=0;
k=0;
sym a b c
for j=1:13
    sum=0;
    t[j]=a+b*x[j]+c*y[j];
    for i=1:13
        i~=j
        sum=sum+A[j]*(sqrt((x-x[j])^2+(y-y[j])^2))^2*
        log(sqrt((x-x[j])^2+(y-y[j])^2));
    end
    t[j]+sum=f[j];
    g=g+A[j];
    h=h+A[j]*x[j];
    k=k+A[j]*y[j];
end
g=0;
h=0;
k=0;
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