how to extract elements that are not succesive

how can I extract elements that are not succesive?

For example, how can I extract 1st, 3nd and 6th elements from 7x1 matrix density?

It would be really helpful if you can help me solve the problem..

Answer 1

[Walter Roberson]

Y([1, 3, 6])

or

Y(round(5*(1:3)/2-5/3))

[민주]

Thanks for answering! have a nice day :)

Answer 2

[Image Analyst]

Here's help: Invest 2 hours of your time here:

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[민주]

The question above was actually the question that I had during studying that cource lol🤣 thanks for your recomendation anyway

[Image Analyst]

OK, then they must have told you how to do it in advance, though perhaps with different numbers. In my experience you're taught/told things and then tested afterwards, with situations where the facts/numbers are slightly altered, on things that you've been taught. I don't think they'd ask you something completely out of the blue that you have not yet been taught. Anyway, Walter's answer is correct and I hope you enjoy using MATLAB like the rest of us. 😁