building a square matrix out of a vector

Hi everyone,

im trying to build a [n X n] matrix from a [1 n*n] vector. can anybody give me a simple code?

Answer 1

[Mischa Kim]

Hossein, use reshape:

 A = 1:4*4;
 n = sqrt(length(A));  % if A is indeed an n*n vector
 B = reshape(A,n,n)

[Hossein]

tnx