How to find the power of a matrix?

I have a matrix in this form:

A=1.0e+05 *[-0.0000 -0.0000

1.5856 -0.0000 ];

And I want to write this matrix in this form:

A=[-0.0000 -0.0000

1.5856 -0.0000 ];

Most importantly, matrix is generated randomly. Its power may vary. It may be some other number at every iteration.

So,How can I do this??

Answer 1

[KSSV]

A=A/10^5 ; A = A.^2 ;

[Sameema Tariq]

But issue is this that matrix is generated randomly. Its power may vary. It may be some other number at every iteration.