symbolic definition disabled in MATLAB r2017b

Hi,

I am using MATLAB r2017b and upated recently with Update 9.

By the way I am still facing the trouble with symbolic definition (e.g. syms x y(t) somthing like these)

How can I fix it?

Best regards,

Sung

[madhan ravi]

Do you have symbolic toolbox installed and have a valid license for it?

[Sungsoo Lim]

Thank you for your answer.

I've found from ver command:

"Symbolic Math Toolbox Version 8.0 (R2017b)"

And my license ensures of full suite including Symbolic Math toolbox as far as I checked

[Steven Lord]

Can you define "trouble"?

Do you receive an error and/or warning message? If so show us all the text of the error and/or warning messages (everything displayed in red or orange text) to give us a better chance of understanding the problem and offering a solution or workaround.

Does it return a different result than you expected? If so what code did you run, what result did you receive, and what result did you expect?

If it does something else, please describe in detail what it does and what you expected it to do.

Answer 1

[Star Strider]

Run these lines from your Command Window or a script:

restoredefaultpath 
rehash toolboxcache 

and see if that fixes the problem.

If you are still having problems, use the Contact Us link in the upper right corner of this page to get Technical Support from MathWorks. (If you do that, run the ver command first.)