I need the MATLAB programme

Answer 1

If you need to use Matlab, your school/ university will provide an academic license.

If they do not provide a license, consider trying the free Matlab-alternative Octave, https://octave.org/.

Or rather, if you can choose, do not do Matlab/Octave at all.

Answer 2

What kind of Matlab program? Please describe what you try to do.

Answer 3

MATLAB is proprietary, paid software. You can buy licenses to use it.
https://www.mathworks.com/pricing-licensing.html