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function f=myfun3(b)
x(1)=0.386126923;x(2)=0.638873077;x(3)=8.17E-09;x(4)=0.00792481;x(5)=0.243680566;x(6)=0.067260778;x(7)=0.118;
f(1)=(3.55e-10)-x(2).*x(3).*exp(2.*b(2).*x(5)+2.*b(1).*x(1)).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5))./(x(1).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5)+2.*b(3).*x(5)+2.*b(1).*x(2)));
f(2)=(4.60e-07)-x(3).*x(5).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5)).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5))./(0.004941889.*1);
f(3)=(4.66e-11)-x(3).*x(6).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5)).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5))./(x(5).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5)));
f(4)=(1.0577e-14)-x(3).*x(4).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5)).*exp(-0.5547.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5./(1+1.2.*((x(1)+x(5)+4.*x(6)+x(3)+x(4))./2).^0.5));
f(5)=x(2)+x(1)-1.025;
f(6)=x(7).*1.025-x(5)-x(6)-0.004941889;
f(7)=x(1)+x(3)-x(4)-x(5)-2.*x(6);
end

OPT=optimset;
OPT.LargeScale='off';
fun=@myfun3;
b0=[0.1893,0.141,0.2037];
[b,Y,c,d]=fsolve(fun,b0,OPT);

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jia544

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32Â¥: Originally posted by hzlhm at 2022-06-20 16:46:37
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