issues with syms function

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Reem Alblooshi
Reem Alblooshi 2020-10-8
评论： GAGANDEEP KAUR 2020-10-27
Whenever I use the syms (symbolic function) code I keep getting errors, even on simple codes that I am sure they are correct.
For example this simple code
syms a [1 4]
a
The output
Error in syms (line 227)
defined = sym(zeros(1, length(args)));
Error in quiz (line 1)
syms a [1 4]
  9 个评论
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Walter Roberson
Walter Roberson 2020-10-27
restoredefaultpath
rehash toolboxcache
syms x
and see if that works.
I suspect you have a third-party function that is interfering with operation the Mathworks sym.m
GAGANDEEP KAUR
GAGANDEEP KAUR 2020-10-27
I have tried as you adviced but still it is keep on running. If possible may you please have a look at attcahed files

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采纳的回答

Ameer Hamza
Ameer Hamza 2020-10-10
Most likely scenario is that you somehow overwrote the sym.m file. The only way to fix it is to delete the current installation and reinstall MATLAB.
  2 个评论
Reem Alblooshi
Reem Alblooshi 2020-10-11
yes I did that and the programs is working now, thank you for your assistance.
Ameer Hamza
Ameer Hamza 2020-10-11
I am glad to be of help!

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更多回答（1 个）

madhan ravi
madhan ravi 2020-10-8
You have a custom file named sym.m , remove it from the path or rename it.
  1 个评论
Reem Alblooshi
Reem Alblooshi 2020-10-10
I tried deleting the file but I keep getting this messsage
Warning: File 'sym.m' not found.
> In quiz (line 2)
although the file does exist.

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