MathLab programing techniques (online course) problem

2021 11 20

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更新时间：2021 11 23

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I have problem with the anwer the question i the following quiz

The question is visible in attachment.

Thanks for any help

Sylwia

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Sylwia Terlicka 2021-11-23

I do not know how many values are storage in each one, that is the question right from the quiz.

I try to pick all of them, first one, two, three and four, and other combinations and it was all wrong.

The hint is -> A double array requires 8 bytes per element. The functions ones, zeros, and randn all create double arrays.

DGM 2021-11-23

The memory() call says you have 10.15E9 bytes available for arrays.

x = randn(1,1E9);

creates a 1x1E9 double array occupying 8E9 bytes.

x = [randn(1,1E9); randn(1,1E9)];

creates two 1x1E9 double arrays and vertically concatenates them to form a 2x1E9 array.

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