public static void CreateIntegerMatrix(REngine engine, int n, Stopwatch s)
        {
            int[,] d = createIntegerMatrix(n);
            s.Start();
            var nvec = engine.CreateIntegerMatrix(d);

            s.Stop();
        }
 public static void CreateIntegerMatrix(REngine engine, int n, Stopwatch s)
 {
     int[,] d = createIntegerMatrix(n);
     s.Start();
     var nvec = engine.CreateIntegerMatrix(d);
     s.Stop();
 }