How to use Matlab to calculate the huge matrix?

%If a matrix is:A=rand(dim),where the dim=millions and millions.How to caculate the matrix like this?

dim=5e8;% or 5e9,5e10
A=rand(dim);
B=A*A;  % the next are operating to the matrix

Answer 1

[James Tursa]

5e10 ... that's about 17 zetta bytes ... or 17 giga-tera bytes. This is WAY WAY beyond what you can expect with any computer. You need to re-structure your problem.

[Tan]

Have some methods to restructure a huge matrix(dim=1e8) to a lower one?

[Walter Roberson]

What will you do with the B matrix once you have it?