MATLAB: Jacobian function not found

jacobiannot foundsymbolic toolbox

Hello to all,
I have to use the "jacobian" function in Matlab. I have the Symbolic toolbox installed, but upon running jacobian(a, b), the prompt tells me :
??? Undefined function or variable 'jacobian'.
     What should I do?
Best regards,
 Jean

Best Answer

If you enter
>>ver
Do you see an entry for the Symbolic Toolbox?
If you enter:
license('test','symbolic_toolbox')
Do you get a 1 back? You may think you installed it, but perhaps something went wrong.
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