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dutoga


Last seen: 2 years ago |  Active since 2022

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符號計算問題。
想請問一下，我寫了以下的碼 T = input('Key in Period , T= '); d = input('Key in water depth , d= '); w=(2*pi)/T;g=9.8;dk=0.1; syms k; ...

2 years ago | 1 answer | 0

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Question


这样写为什么会报错呢。
clc clear syms a1 a2 a3 a4 a5 x y r; r=[0.0349 0.0355 0.0322 0.0307 0.02880.0263 0.0256 0.0254 0.0248 0.0239 0.0209 0.0201 0....

2 years ago | 1 answer | 0

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Question


规划问题fmincon报错显示Aeq must have 4 column(s)，求解答。
OrgR=importdata('股票和期货收益率.txt'); ER=mean(OrgR) EV=cov(OrgR); A=[-ER(1) -ER(2) -ER(3) -ER(4) -ER(5)]; b=0; Aeq=[1.0 1.0 1.0...

2 years ago | 0 answers | 0

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