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How to solve set of non-linear equations using fsolve. Set of non-linear equations have equality and in-equality equations.

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Kurnam Gnaneshwar
Kurnam Gnaneshwar on 17 Jul 2021
Commented: Torsten on 17 Jul 2021
How to solve set of non-linear equations using fsolve. Set of non-linear equations have equality and in-equality equations.
  2 Comments
Torsten
Torsten on 17 Jul 2021
If you introduce slack variables to convert your inequalities to equalities, you can also use fsolve.
That means:
If you have a set of inequalities of the form
f(x) <= 0,
you introduce new variables y and solve
f(x) + y.^2 = 0.

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Accepted Answer

Torsten
Torsten on 17 Jul 2021
Use fmincon instead of fsolve. Simply set the objective function to 0 and use fmincon only to determine a feasible point of your problem.

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