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function [c,ceq]=mycon(x)
c=0.5097-(1-x(1))*x(2)-x(1)*(x(3)-x(5));
ceq=[];


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LB=[0 0.22 0 0.1 0 0.1 0];
UB=[0.4 0.8 1 0.8 1 0.8 2];
options=gaoptimset('PopulationSize',30,'Generations',500,'PlotFcn',{@gaplotbestf,@gaplotbestindiv},'Display','iter');
[x,fval,exitflag,output,population,scores]=ga(@myfun,7,[],[],[],[],LB,UB,@mycon,options);


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x1 = (0.5097 - x2) /(x5+x2-x3)
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