solving system of equations

Hello
How can I solve a system of equations for 8 equations and 8 variables?
The equations are nonlinear and parametric as below:

7 Kommentare

Mahsa Babaee
Mahsa Babaee am 18 Feb. 2021
I used "solve" in my code but it failed in finding a solution (error no explicit solution.)
Using "fsolve" is my idea but I am confused with the initial value that should be given to matlab code.
Now, what should I do?
darova
darova am 18 Feb. 2021
try ones for initial values
x0 = ones(8,1);
Alex Sha
Alex Sha am 19 Feb. 2021
Hi, Masha, give out all known constant such as k1, h, Lz1..., also give out your equations in text format.
Mahsa Babaee
Mahsa Babaee am 19 Feb. 2021
Equations:
Variables:
Assumption:
Parameters:
I need the variables based on parameters.
Mahsa Babaee
Mahsa Babaee am 19 Feb. 2021
Bearbeitet: Mahsa Babaee am 19 Feb. 2021
Dear Alex, I hope the latter form helps.
Alex Sha
Alex Sha am 20 Feb. 2021
Hi, Mahsa, you didn't understand what i mean, for numerical computation, for example fsolve, except X1,...X9, you need to give out all values (h,k1,k2,k3,L1,L2,L3,...) .
Another, the equations you given is in picture format, not text format.
Mahsa Babaee
Mahsa Babaee am 28 Feb. 2021
I appreciate your time and attention. I think that I understand what you mean. In other words I have to set values of parameters (h,k1,k2,k3,L1,L2,L3,...) for using fsolve because it just works numerically. Am I right?
But I have to find a analytical solution so fsolve doen't seem efficient! so what should I do??

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