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Create system of equations from Matrix

4 vues (au cours des 30 derniers jours)
Vlad Bec
Vlad Bec le 17 Juil 2023
Commenté : Nandini le 18 Juil 2023
Is there a way to create a system of nonlinear equations to be solved in Matlab gotten from n-dimensional matrix which is created on some way?
For example, user has decided that n should be 4 and the generated matrix taken from the output - Command Window (there is a special code to produce this matrix) is
Matrix1 =
1 1 1 1
1 1 0 1
1 0 1 0
1 1 0 1
Now I need to create (automatically) system of equations like this (based on matrix1) and solve it in Matlab:
(1-x1)*(1-x2)*(1-x3)*(1-x4)=0
(1-x1)*(1-x2)*(1-x4)=0
(1-x1)*(1-x3)=0
(1-x1)*(1-x2)*(1-x4)=0
  2 commentaires
Torsten
Torsten le 17 Juil 2023
Why do you want to generate the system ? It has the obvious solution x(i) = 1 for all i.
Vlad Bec
Vlad Bec le 17 Juil 2023
There are a lot of solutions. It is for some optimization process and I have to generate this form of system of equations for some n (taken from matix).

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Réponses (1)

Nandini
Nandini le 17 Juil 2023
Yes, it is possible to create a system of nonlinear equations based on the given matrix in MATLAB. You can use the symbolic math toolbox in MATLAB to define the variables and equations symbolically. Here's how you can do it:
% Define the variables symbolically
syms x1 x2 x3 x4
% Define the equations based on the given matrix
eq1 = (1-x1)*(1-x2)*(1-x3)*(1-x4) == 0;
eq2 = (1-x1)*(1-x2)*(1-x4) == 0;
eq3 = (1-x1)*(1-x3) == 0;
eq4 = (1-x1)*(1-x2)*(1-x4) == 0;
solutions = solve([eq1, eq2, eq3, eq4], [x1, x2, x3, x4]);
disp(solutions)
Running this code will provide you with the solutions to the system of equations.
Thank You!
  2 commentaires
Vlad Bec
Vlad Bec le 17 Juil 2023
It has to be automatically.
Nandini
Nandini le 18 Juil 2023
What do mean by that?

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