You can easily download other versions of Matlab by simply going to you Mathworks account. You will see your active license in the My software section, and you just need to click the download symbol there. There will be some options to download other versions of Matlab. I'm not sure if the version 6 is available in your account, but you can try to check it.

to download a matlab 6 version or any other latest version just you need to go to mathtwork website and sign in to matlab account and from there you can easily download any of the matlab version you want.

You can download MATLAB 6 and other versions through your MathWorks Account when you have an active license. if you don't have a license I suggest you to see p30dowload. if your problem is just about Simulink you can save your simulations in previous version as well.

Dear Muhammad Rizki Oktavian

Dear Muhammad Usama

Dear Tahereh Vaezi

Unfortunately, I do not have the license to activate my account in math work site.

if you can please help me to download this version of matlab from mathwork site?

This version is very necessary for me !!!

thanks

unfortunately, I've not this version and I couldn't find it. but what is so special about this version that can't find in the other versions?

Dear Tahereh Vaezi

Honestly, the professor sent me a Toolbox, which is only available in this version.

Are you a member of the math work site?

which toolbox? if he/she sent you the toolbox you should ask for the appropriate version as well.

yes I'm a member of mathwork

i don't have license to active my account in math-work. This version is available in this site. if you can please send me this version of Matlab links to download?

I'm afraid I can't do that. hope you can find a solution but believe me your supervisor has to help you. you are not there to find a software you should ask them to prepare it for you.