Undefined function 'sym' for input arguments of type 'double'.

Hi everyone;

When I run this script:

% This is a comment.
>> 4+5-3

ans =

       6

>> 2*3/6

ans =

       1

>> sym(1/2)+sym(3/4)

I face this error:

Undefined function 'sym' for input arguments of type 'double'.

Could anyone help me please?

Answer 1

[Muruganandham Subramanian]

Read this mentioned link:

http://www.mathworks.com/help/symbolic/sym.html

Answer 2

[Walter Roberson]

You might not have the Symbolic Toolbox installed or licensed. The Symbolic Toolbox is an extra-cost feature for Academic and Commercial licenses. The Symbolic Toolbox is included with the Student Version but is not necessarily installed by default.