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Forum: Main CFD Forum

March 30, 2011, 07:06

Replies: 12

[MATLAB] 9 equations, 9 unknowns

Views: 5,503

Posted By nakor

Thanks Martin, I think I found something way...

Thanks Martin, I think I found something way easier to solve.

http://img4.hostingpics.net/pics/139920matrice.jpg

I just have to found X9 first, then X8, X7... X1. It's even linear since I will...

Forum: Main CFD Forum

March 29, 2011, 08:38

Replies: 12

[MATLAB] 9 equations, 9 unknowns

Views: 5,503

Posted By nakor

It could not work. It is a system, it will not...

It could not work. It is a system, it will not work if I try to solve each equation individually.
I will try with "solve(eq1, eq2, ..., eq9)" as f-w suggested.

Forum: Main CFD Forum

March 29, 2011, 03:32

Replies: 12

[MATLAB] 9 equations, 9 unknowns

Views: 5,503

Posted By nakor

I can't use X=inv(A)*b since it's nonlinear. I...

I can't use X=inv(A)*b since it's nonlinear. I have somes unknowns in both X,Y (Y6=-l+l*exp(gm)*exp(-gX7) with X7 unknown) and in my matrix (M(8,8)=f*X7-k, M(9,9)=exp(gm)*exp(-gX7)).

So I should...

Forum: Main CFD Forum

March 28, 2011, 16:47

Replies: 12

[MATLAB] 9 equations, 9 unknowns

Views: 5,503

Posted By nakor

[MATLAB] 9 equations, 9 unknowns

Hello,

I do not know anything about matlab but I have a rather complicated problem to solve, and I'm afraid that Excel will not suffice to solve it, so I was wondering if there was not an...

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