How to check which packages are installed in matlab?

My version is 2012a

Answer 1

[José-Luis]

If by package you mean toolboxes then just type

 ver

in the command line

[Mikhail]

Thanks

[cikalekli]

Thank you, I've been searching up for that

Answer 2

[Star Strider]

Use the ver command from the Command Window. It will tell you everything about your MATLAB installation.

Answer 3

[Chethan R]

Error using webcamlist (line 20)
MATLAB Support Package for USB Webcams has not been installed. Open Add-Ons Explorer to install the
Webcam Support Package.

please give me solution for this

[Star Strider]

Type:

webcam

in your Command Window. It should bring up a red error message that provides an underlined, bold link. Click on that link, then follow the instructions to download and install the MATLAB Support Package for USB Webcams (link).

It is only available for R2014a and later releases.