I need some help with a function

Hi!

So I am trying to make a function named lowerRightQuarter that takes one argument, a matrix, with an even number of rows and columns. The function then returns the lower right quarter of the input matrix as a new matrix. This is what I have so far.

function n=lowerRightQuarter(A)
n=A(2 : 2 : end, 2 : 2 : end);

end

My Page looks like this

%%  Lower Right Quarter

A=[1  2  3  4;
5  6  7  8;
0  1  2  3;
4  5  6  7];

lowerRightQuarter(A)

So the out put should be

2  3
6  7

Then after that if I run it again with 2 3; 6 7. I should just get 7.

Please help!.If you would please get me your answer ASAP that would be great!

Thank you so much

Daniel

Answer 1

[Image Analyst]

You're getting every other row. Try this:

function n = lowerRightQuarter(A)
[rows, columns] = size(A);
middleRow = rows / 2 + 1;
middleCol = columns / 2 + 1;
n = A(middleRow : end, middleCol : end);
end

[Daniel Vonderhaar]

Wow! Thanks!