function not working with my license

why I am having error-manager number 5 each time i'm trying to use the sym and syms functions?

Answer 1

[the cyclist]

Do you have the Symbolic Math Toolbox installed? Type

ver

at the command line to check what is installed.

[Jonas Lucceus]

Thanks for trying to help e out,I am new to matlab and don't know where is my command line and how to install Symbolic Math toolbox. I guess it should be installed automatically with matlb. Maybe that's happened because I am using the student version.

[Walter Roberson]

You need to go back to the MATLAB installer and indicate there that you want to install the Symbolic toolbox; it is not installed by default.