i got this matrix question on my exam and i really had hard time with it

can any one explain the sulotion of it please ? thank you.

[Rik]

What did you try? Did you read the documentation for each of those functions?

The solution is to divide the matrix in sections that can be created with only those three functions.

Answer 1

[Kunal Kandhari]

This can be done using following line of code:

A = [zeros(2,3) ones(2,2); eye(5)]

Explaination:

zeros(2,3) will create array of zeros with 2 row and 3 column

ones(2,2) will create array of ones with 2 row and 2 column

eye(5) will create identity matrix of dimension 5

[zeros(2,3) ones(2,2)] will append ones after zero therefore resulting in

following matrix:

0 0 0 1 1

0 0 0 1 1

Now we want to append identity matrix below above obtained matrix

therefore we use semicolon after zeros and ones array and identity

matrix will be appended vertically

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You can refer following links for better understanding:

for creating array of zeros:

https://in.mathworks.com/help/matlab/ref/zeros.html

for creating array of ones:

https://in.mathworks.com/help/matlab/ref/ones.html

for creating identity matrix:

https://in.mathworks.com/help/parallel-computing/distributed.eye.html

[Rik]

Why did you provide a full solution to a homework assignment?

[Marzouq harbi]

this is not a homework my guy can you read the Q ? it is a Question that came in an exam and i already lost marks on it.

[Rik]

So you did see that comment but not my first one? I'm sorry, but a few years here have made me a bit sceptic/cynical.