How to install and enable Symbolic Math Toolbox

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Hello! I am new to MatLab. How do I install and enable Symbolic Math Toolbox? I am currently getting the following error when I try to use the "syms" syntax:
To use 'syms', the following product must be licensed, installed, and enabled:
Symbolic Math Toolbox

Answers (2)

Walter Roberson
Walter Roberson on 17 Feb 2019

yazen abazeid
yazen abazeid on 13 Jun 2021
% Filename: ex.m % function ex=ex(x,y) % ex=x.*x+y.*y; % end syms x y; u=jacobian(ex(x,y),[x,y])
  1 Comment
Walter Roberson
Walter Roberson on 29 Aug 2021
With your spacing it is difficult to tell what is commented out and what is not commented out.
If it is still a function, then notice that it does not assign to ex as the function expects.
It is not recommended, by the way, to use the same name for a variable as the function; it confuses the parser and it confuses readers.

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