No, you can run symsum separately for the summation terms only. Nested symsum inside a loop may not be necessary.
Using a symsum inside a fsolve
3 views (last 30 days)
Show older comments
I need to estimate the parameters of a model using the equations of the attached image. From my readings of the matlab documentation I would have to use fsolve to solve that system of non-linear equations, but there is a sum of multiple terms inside the equations. If I understood correctly, I would have to run a Symsum "nested" inside the fsolve. Is that correct? How do I implement this? Any advice is appreciated.
Answers (1)
Torsten
on 2 Aug 2023
Edited: Torsten
on 2 Aug 2023
If I understood correctly, I would have to run a Symsum "nested" inside the fsolve. Is that correct? How do I implement this?
No, it's not correct. You can either use a for loop to add the terms one by one or use MATLAB's "sum". "symsum" is inadequate because there are no symbolic variables if you use "fsolve".
11 Comments
Torsten
on 10 Aug 2023
Maybe you could give a link to the paper you are concerned with so that I know what you are trying to do.
See Also
Categories
Find more on Get Started with Curve Fitting Toolbox in Help Center and File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!