How to solve Matrix that consists of a variable

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KEDI YAN 2020-7-15

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https://ww2.mathworks.cn/matlabcentral/answers/565646-how-to-solve-matrix-that-consists-of-a-variable

评论： Star Strider 2020-7-16

采纳的回答： Star Strider

I have a Matrix like below

In this matrix, only the Z23 and Z32 are unknown, and Z23 = Z32. I had mannuly solved it and got the equation shown below

I was wondering if MATLAB can help me do such a calculation?

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采纳的回答

Star Strider 2020-7-15

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/565646-how-to-solve-matrix-that-consists-of-a-variable#answer_466316

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See if the linsolve function will do what you want.

syms Vs 
Iv = sym('I',[4 1]);
Zm = sym('Z', [4 4]);
Zm(1,[3 4]) = 0;
Zm(2,4) = 0;
Zm(3,1) = 0;
Zm(4,[1 2]) = 0;
Vv = [Vs; 0;0;0];
RHS = Zm*Iv;
S = linsolve(Zm, Vv)

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KEDI YAN 2020-7-16

Cool cool. This is exactly what I need! I appreciate it.

Star Strider 2020-7-16

As always, my pleasure!

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