matlab 程序错误,不知道错在哪里,求高人教怎么修改r1=0.1r2=0.15r3=0.12r=0.12vol1=0.08vol2=0.18vol3=0.20cor12=0.7cor13=0.1cor23=0.4syms delta1 delta2 delta3 lamda1 lamda2L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...2*delta1*d
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![matlab 程序错误,不知道错在哪里,求高人教怎么修改r1=0.1r2=0.15r3=0.12r=0.12vol1=0.08vol2=0.18vol3=0.20cor12=0.7cor13=0.1cor23=0.4syms delta1 delta2 delta3 lamda1 lamda2L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...2*delta1*d](/uploads/image/z/1340337-57-7.jpg?t=matlab+%E7%A8%8B%E5%BA%8F%E9%94%99%E8%AF%AF%2C%E4%B8%8D%E7%9F%A5%E9%81%93%E9%94%99%E5%9C%A8%E5%93%AA%E9%87%8C%2C%E6%B1%82%E9%AB%98%E4%BA%BA%E6%95%99%E6%80%8E%E4%B9%88%E4%BF%AE%E6%94%B9r1%3D0.1r2%3D0.15r3%3D0.12r%3D0.12vol1%3D0.08vol2%3D0.18vol3%3D0.20cor12%3D0.7cor13%3D0.1cor23%3D0.4syms+delta1+delta2+delta3+lamda1+lamda2L%3D%28%28vol1%5E2%2Adelta1%5E2%2Bvol2%5E2%2Adelta2%5E2%2Bvol3%5E2%2Adelta3%5E2%2B...2%2Adelta1%2Ad)
matlab 程序错误,不知道错在哪里,求高人教怎么修改r1=0.1r2=0.15r3=0.12r=0.12vol1=0.08vol2=0.18vol3=0.20cor12=0.7cor13=0.1cor23=0.4syms delta1 delta2 delta3 lamda1 lamda2L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...2*delta1*d
matlab 程序错误,不知道错在哪里,求高人教怎么修改
r1=0.1
r2=0.15
r3=0.12
r=0.12
vol1=0.08
vol2=0.18
vol3=0.20
cor12=0.7
cor13=0.1
cor23=0.4
syms delta1 delta2 delta3 lamda1 lamda2
L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...
2*delta1*delta2*vol1*vol2*cor12+...
2*delta1*delta3*vol1*vol3*cor13+...
2*delta2*delta3*vol2*vol3*cor23)-...
lamda1(delta1*r1+delta2*r2+delta3*r3-r)-...
lamda2(delta1+delta2+delta3-1))
d1=diff(L,delta1)
d2=diff(L,delta2)
d3=diff(L,delta3)
d4=diff(L,lamda1)
d5=diff(L,lamda2)
s=solve(d1,d2,d3,d4,d5)
s1=s.delta1
s2=s.delta2
s3=s.delta3
matlab 程序错误,不知道错在哪里,求高人教怎么修改r1=0.1r2=0.15r3=0.12r=0.12vol1=0.08vol2=0.18vol3=0.20cor12=0.7cor13=0.1cor23=0.4syms delta1 delta2 delta3 lamda1 lamda2L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...2*delta1*d
L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...
2*delta1*delta2*vol1*vol2*cor12+...
2*delta1*delta3*vol1*vol3*cor13+...
2*delta2*delta3*vol2*vol3*cor23)-...
lamda1(delta1*r1+delta2*r2+delta3*r3-r)-...
lamda2(delta1+delta2+delta3-1))
这里错了,改为
L=((vol1^2*delta1^2+vol2^2*delta2^2+vol3^2*delta3^2+...
2*delta1*delta2*vol1*vol2*cor12+...
2*delta1*delta3*vol1*vol3*cor13+...
2*delta2*delta3*vol2*vol3*cor23)-...
lamda1*(delta1*r1+delta2*r2+delta3*r3-r)-...
lamda2*(delta1+delta2+delta3-1))