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qinzhen724гæ (СÓÐÃûÆø)
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MatlabÖÐÓÃfminconÇó½â×îСֵÎÊÌ⣬µ÷ÊÔÁ˺öà´Î£¬Ò»Ö±ÕÒ²»µ½¿ÉÐн⣬Çó´óÉñÖ¸µ¼ ÒÑÓÐ2È˲ÎÓë
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ÓÃfminconÇó½â×îСֵÎÊÌ⣨1¸öÄ¿±êº¯Êý¡¢9¸ö±äÁ¿¡¢6¸öÏßÐÔµÈÊ½Ô¼Êø£©£¬Ò»Ö±¶¼ÊÇNo feasible solution£¬²»ÖªµÀ±¾ÉíÎ޽⻹ÊÇʲôÎÊÌâ¡£ x0=[4000;4000;2000;500;100;10;10;10;10]; A=[]; b=[]; Aeq=[-88.840439250000020, 20.679950666666663, -2.158236236666667e+02, -3.601469919166667e+02, -36.694763666666690, 21.462819666666660, -13.261596999999995, 7.477251833333336, -1.023975406666667e+02; 0.012, 0, 0, 0.012, 0.012, 0, 0, 0, 0.012; 0, 0.002, 0.002, 0, 0.004, 0, 0.003, 0.002, 0; 0.016, 0, 0.016, 0.032, 0, 0, 0, 0, 0.016; 0, 0, 0, 0, 0, 0.028, 0.014, 0, 0; 0, 0, 0, 0, 0, 0, 0, 0.032, 0.032] beq=[4588048.12066667; 171.600000000000; 21.5666666666667; 241.933333333333; 2.10000000000000; 0.600000000000000] VLB=[0.001;0.001;0.001;0.001;0.001;0.001;0.001;0.001;0.001]; VUB=[6601.833333;4978.305556;4978.305556;5172.684028;2489.152778;34.625;69.25;8.65625;8.65625]; options = optimoptions(@fmincon,'Algorithm','interior-point','MaxIter',5000); [x,fval,exitflag,output]=fmincon(@Gibbsfun,x0,A,b,Aeq,beq,VLB,VUB,[],options) %%Ä¿±êº¯ÊýΪmyobjfun function G=myobjfun(x) deltaG1=-8.841665127258336e+04; deltaG2=-1.661952727160000e+05; deltaG3=5.504948170966668e+04; deltaG4=-1.666712325249982e+03; deltaG5=1.092642304030001e+05; deltaG6=-2.281491138470000e+05; deltaG7=1.169078584030000e+05; deltaG8=1.087887085851667e+05; deltaG9=4.941138012599998e+04; G=x(1)*(deltaG1+8314*log(x(1)/sum(x)*1.2))+x(2)*(deltaG2+8314*log(x(2)/sum(x)*1.2))... +x(3)*(deltaG3+8314*log(x(3)/sum(x)*1.2))+x(4)*(deltaG4+8314*log(x(4)/sum(x)*1.2))... +x(5)*(deltaG5+8314*log(x(5)/sum(x)*1.2))+x(6)*(deltaG6+8314*log(x(6)/sum(x)*1.2))... +x(7)*(deltaG7+8314*log(x(7)/sum(x)*1.2))+x(8)*(deltaG8+8314*log(x(8)/sum(x)*1.2))... +x(9)*(deltaG9+8314*log(x(9)/sum(x)*1.2)) ¼ÆËã½á¹ûÈçÏ£º No feasible solution found. fmincon stopped because the size of the current step is less than the default value of the step size tolerance but constraints are not satisfied to within the default value of the constraint tolerance. <stopping criteria details> x = 1.0e+03 * 4.666024308553983 3.857233354391819 2.387214185792911 0.000001000000005 0.000001000000001 0.015465337002847 0.000001000000003 0.008656249999525 0.006364985001793 fval = -1.006342210855910e+09 exitflag = -2 output = iterations: 70 funcCount: 710 constrviolation: 5.438285104570996e+06 stepsize: 9.313859771460607e-10 algorithm: 'interior-point' firstorderopt: 0.043644013275751 cgiterations: 76 message: 'No feasible solution found. |
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