Can I use patternsearch to solve a system of non-smooth equations?

4 views (last 30 days)
Matt Brisson
Matt Brisson on 8 Nov 2019
Commented: Matt Brisson on 21 Nov 2019
I have a system of 42 non-smooth equations with 42 unknowns. To find a numerical solution, I first used fsolve. But the results seem innacurate, probably because of the non-smoothness.
I would like to use patternsearch, from the global optimization toolbox, but the latter needs a scalar objective function if I am not mistaken.
How can I use patternsearch to solve my system of non-smooth equations?
Thanks

Answers (1)

Alex Sha
Alex Sha on 19 Nov 2019
Ho, provide your 42 equations in details, so others may try to solve
  1 Comment
Matt Brisson
Matt Brisson on 21 Nov 2019
Unfortunately, it's quite complicated because the 42 equations are the outcomes of several functions that have to be run by the solver for each new possible solution.
But would it be possible to use patternsearch to solve a system of equations?
Thanks a lot

Sign in to comment.

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!