How I can i organize the array of matrix?

Hey I wrote a function that the user enters a matrix, and the function returns "1" if the matrix is reversible(regular) and "0" if it's not.

I wrote this function-

function x=irr_mat(A)
n=size(A)
if isequal(A,zeros(n))
    x=0;
else
   if size(A,1)==size(A,2)
    x=1;
else
    x=0;
   end
end
end

and i call the function -

A=randi([0,100],4);
irr_mat(A)

and get -

n =
     4     4
ans =
     1

I need to get matrix with 4X4... what is the problem?

[Rik]

Why do you expect a 4x4?

You also probably want to suppress the output of the call to size with a semicolon.

[KSSV]

What you entered is 4x4 matrix....so the answer 1, is correct. I am surprised what you are trying to achieve.

[Rik]

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