static double[] eigenValues(double[][] A){
		double[] values = new double[A.length];
		
		String[][] stringA = new String[A.length][A.length];
		for(int i = 0; i < A.length; i++)
			for(int j = 0; j < A.length; j++){
				
				if(i == j)
					stringA[i][j] = String.valueOf(A[i][j]) + " - x";
				else
					stringA[i][j] = String.valueOf(A[i][j]);
					
			}
		
		return values;
			
	}