Problem in using Fsolve in Simulink

6 次查看（过去 30 天）
Krishna
Krishna 2013-8-1
评论： Arcadio Perilla 2019-12-18
I am trying to use 'fsolve' in Simulink, and I found the following thread on Mathworks:
http://www.mathworks.com/matlabcentral/answers/29645
I used the same technique as 'Kaustubha Govind' mentioned for a model I am trying to design in Simulink, and I am running into more errors. To give a basic idea about what I am trying to do, I have the following structure. I am using the 'Interpreted Matlab Function' block in Simulink.
fsolve(@(x)sample(x,u(1),u(2),u(3),u(4),u(5),u(6),u(7),u(8),u(9),u(10),u(11),u(12),u(13),u(14),u(15),u(16)),x0)
Here, x0 is a 1 X 12 matrix and u(1)..,u(16) are scalars. 'sample' is a function (m-file) that I have saved in the Matlab folder. To start with, Have I framed the 'Interpreted Matlab function' properly?
After I run this model, I get the following errors:
1) Error in 'Model/Subsystem/Interpreted MATLAB Function' while evaluating expression.
2) Failure in initial user-supplied objective function evaluation. FSOLVE cannot continue.
3) Too many output arguments.
-Krishna
  1 个评论
Kaustubha Govind
Kaustubha Govind 2013-8-12
Hi Krishna,
Please avoid sending personal messages, since all forum users participate in their leisure time and are not mandated to do so as an order of business.
Here are some resources that might help with unanswered questions:
If your license is on maintenance, please also note that you may contact MathWorks Tech Support as an alternate resource for urgent issues: http://www.mathworks.com/support/contact_us
Thank you for your consideration!

请先登录，再进行评论。

请先登录，再回答此问题。

回答（1 个）

Kaustubha Govind
Kaustubha Govind 2013-8-12
Are you able to run fsolve with similar input arguments (as passed in from the Interpreted MATLAB Function block) outside of Simulink? Please set a breakpoint in your S-function code to ensure that the inputs are passed in correctly.
  2 个评论
Krishna
Krishna 2013-8-12
Yes, I am able to run fsolve with similar input arguments outside of Simulink. I am not using a S-function in my model, could you clarify what you are referring to with respect to setting a breakpoint in the S-function code?
Arcadio Perilla
Arcadio Perilla 2019-12-18
I cannot beleive that this question after 5 years has not been answered :(

请先登录，再进行评论。

类别

在 Help Center 和 File Exchange 中查找有关 Simulink Coder 的更多信息

标签

产品

Community Treasure Hunt

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

Start Hunting!

Translated by