Write a function sides_products(M) that given a matrix M returns a 2-by-2 matrix containing the 4 products of the numbers in each of M’s 4 sides (i.e., the outside rows and columns of M) starting with the top side and going in clockwise order. ***

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Song Lee 2018-9-20

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plz help

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KALYAN ACHARJYA 2018-9-20

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编辑：KALYAN ACHARJYA 2018-9-20

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function mat=sides_products(M)
[rows colm]=size(M);
m_11=M(round(rows/2),round(colm/2))* M(round(rows/2)-1,round(colm/2));
m_12=M(round(rows/2),round(colm/2))* M(round(rows/2),round(colm/2)+1);
m_21=M(round(rows/2),round(colm/2))* M(round(rows/2),round(colm/2)-1);
m_22=M(round(rows/2),round(colm/2))* M(round(rows/2)+1,round(colm/2));
mat=[m_11,m_12;m_21,m_22];
end

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Guillaume 2018-9-20

@Kalyan,

In my opinion, it would be better if you didn't give full solutions to obvious homework problems particularly when the person does not appear to have made any effort at solving them.