I'm current learning MatLab before i start my second year of engineering and i don't really understand a fundamental aspect of it. My problem is the use of the period "." and when it is deemed to be necessary.(adsbygoogle = window.adsbygoogle || []).push({});

I've looked up what this operator does and found definitions such as Element by element, Point-wise, ect. My problem is these don't mean much to me, I've done work on vectors and matrices, however matrices work consisted of mostly doing practice problems so maybe i don't full understand the fundamentals of matrices. Is there anyway somebody could explain to me what the period operator actually does.

For example why are these two different

y = sqrt(t).*sin(2t);

y = sqrt(t)*sin(2t);

And

y=(3.^x)./(1+3.^x)

y=(3^x )/ (1+3^x)

Any clarification would be much appreciated, thank you.

P.S I hope this is in the right board

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# Matlab Misunderstanding

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