Markov Squaring java in pgm

MarkovSquaring.java

public class MarkovSquaring

{

             public static void main(String[] args)

{

                    int T = Integer.parseInt(args[0]);

                    double[][] p = StdArrayIO.readDouble2D();

                    int N = p.length;

        double[] rank = new double[N];

        rank[0] = 1.0;

        for (int t = 0; t < T; t++)

       {

            p = Matrix.multiply(p, p);

        }

                        StdArrayIO.println(p);

    }

}