How to divide vector to matrix(same row and column)

Hello.

I got some vector like (82580526 X 1)

I want to divide this vector to matrix. The matrix have same row and column. (N x N)

If it can't be divide equally, some row or column of the matrix can be splited.

Could you explain how to have same row and column?

[Tommy]

Perhaps reshape?

https://www.mathworks.com/help/matlab/ref/reshape.html

Answer 1

[KSSV]

To remove extra elements and convert to square matrix

A = rand(82580526,1) ; 
l = length(A) ; 
% GEt the nearest perfect square 
N = floor(sqrt(l)) ; 
% Reshape into required matrix 
iwant = reshape(A(1:N*N),N,N) ; 

To append zeros and convert to square matrix

A = rand(82580526,1) ; 
l = length(A) ; 
% GEt the next perfect square 
N = ceil(sqrt(l)) ;
% Append zeros 
A = [A ; zeros(N^2-l,1)] ; 
% Reshape into required matrix 
iwant = reshape(A,N,N) ; 

Answer 2

[Walter Roberson]

If you have the Communications Systems Toolbox, then

buffer(TheVector, ceil(sqrt(numel(TheVector))))