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stone924新蟲 (初入文壇)
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[求助]
1stOpt函數(shù)中含有間接變量怎么辦
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剛接觸1stOpt就遇到了很大的困難:由于函數(shù)表達(dá)式過于復(fù)雜,不得不在其中引入間接變量(如代碼中的F11,F12等等),而運(yùn)行結(jié)果卻并不是設(shè)定的parameter。請高手指點(diǎn)迷津,不勝感激![]() 結(jié)果如下: 參數(shù) 最佳估算 ---------- ------------- x1 0 x2 0 x3 0 rate1 0 rate2 0 rate3 0 r1 0 r2 0 r3 0 rs 0 代碼如下: Constant K=23.05,u=21.58,c1=4.6948,cs=0.00001,phi=0.1412,pi=3.1415926; Parameters x1,a1,x2,a2,x3,a3; Variable p,c; Function x1+x3+x3=phi; Ia1=2*pi*a1*(arccos(a1)-a1*(1-a1^2)^0.5)/(1-a1^2)^1.5; F11=6*u*Ia1/(2*pi*(3*K+4*u)); F12=6*u*(3*Ia1-4*pi)/(4*pi*(3*K+4*u)); F13=a1^2*(3-9*Ia1/(4*pi))*(6*K+2*u)/(2*(1-a1^2)*(3*K+4*u))+(6*u*Ia)/(8*pi*(3*K+4*u)); F14=0.5*((3-9*Ia1/(4*pi))*(6*K+2*u)/(2*(1-a1^2)*(3*K+4*u))-3*u*(1-Ia1/pi)/(3*K+4*u)); rate1=-p/(F11-F12*F13/(F13+F14))/K; //if rate1 <-1 // rate1=-1 //end Ia2=2*pi*a2*(arccos(a2)-a2*(1-a2^2)^0.5)/(1-a2^2)^1.5; F21=6*u*Ia2/(2*pi*(3*K+4*u)); F22=6*u*(3*Ia2-4*pi)/(4*pi*(3*K+4*u)); F23=a2^2*(3-9*Ia2/(4*pi))*(6*K+2*u)/(2*(1-a2^2)*(3*K+4*u))+(6*u*Ia)/(8*pi*(3*K+4*u)); F24=0.5*((3-9*Ia2/(4*pi))*(6*K+2*u)/(2*(1-a2^2)*(3*K+4*u))-3*u*(1-Ia2/pi)/(3*K+4*u)); rate2=-p/(F21-F22*F23/(F23+F24))/K; Ia3=2*pi*a3*(arccos(a3)-a3*(1-a3^2)^0.5)/(1-a3^2)^1.5; F31=6*u*Ia3/(2*pi*(3*K+4*u)); F32=6*u*(3*Ia3-4*pi)/(4*pi*(3*K+4*u)); F33=a3^2*(3-9*Ia3/(4*pi))*(6*K+2*u)/(2*(1-a3^2)*(3*K+4*u))+(6*u*Ia)/(8*pi*(3*K+4*u)); F34=0.5*((3-9*Ia3/(4*pi))*(6*K+2*u)/(2*(1-a3^2)*(3*K+4*u))-3*u*(1-Ia3/pi)/(3*K+4*u)); rate3=-p/(F31-F32*F33/(F33+F34))/K; L1z=1/(1-(a1*(1+rate1))^2)-(a1*(1+rate1))*arccos((a1*(1+rate1)))/(1-(a1*(1+rate1))^2)^1.5; L1x=(1-L1z)/2; L1y=L1x; R1=1/9*(1/(L1x*c1+(1-L1x)*c)+1/(L1y*c1+(1-L1y)*c)+1/(L1z*c1+(1-L1z)*c)); L2z=1/(1-(a2*(1+rate2))^2)-(a2*(1+rate2))*arccos((a2*(1+rate2)))/(1-(a2*(1+rate2))^2)^1.5; L2x=(1-L2z)/2; L2y=L2x; R2=1/9*(1/(L2x*c1+(1-L2x)*c)+1/(L2y*c1+(1-L2y)*c)+1/(L2z*c1+(1-L2z)*c)); L3z=1/(1-(a3*(1+rate3))^2)-(a3*(1+rate3))*arccos((a3*(1+rate3)))/(1-(a3*(1+rate3))^2)^1.5; L3x=(1-L3z)/2; L3y=L3x; R3=1/9*(1/(L3x*c1+(1-L3x)*c)+1/(L3y*c1+(1-L3y)*c)+1/(L3z*c1+(1-L3z)*c)); Rs=1/9*(1/(1/3*cs+(1-1/3)*c)+1/(1/3*cs+(1-1/3)*c)+1/(1/3*cs+(1-1/3)*c)); (1-(x1*(1+rate1)+x2*(1+rate2)+x3*(1+rate3)))*(cs-c)*Rs+x1*(1+rate1)*(c1-c)*R1+x2*(1+rate2)*(c1-c)*R2+x3*(1+rate3)*(c1-c)*R3=0; data; 0.008 0.1325 0.115 0.1309 0.020 0.1299 0.026 0.1290 0.040 0.1277 0.060 0.1269 |
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新蟲 (初入文壇)
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