static float rmsValue ( int arr [ ] , int n ) {
  int square = 0 ;
  float mean = 0 ;
  float root = 0 ;
  for ( int i = 0 ;
  i < n ;
  i ++ ) {
    square += Math . pow ( arr [ i ] , 2 ) ;
  }
  mean = ( square / ( float ) ( n ) ) ;
  root = ( float ) Math . sqrt ( mean ) ;
  return root ;
}

static float rmsValue ( int arr [ ] , int n ) { int square = 0 ; float mean = 0 ; float root = 0 ; for ( int i = 0 ; i < n ; i ++ ) { square += Math . pow ( arr [ i ] , 2 ) ; } mean = ( square / ( float ) ( n ) ) ; root = ( float ) Math . sqrt ( mean ) ; return root ; }
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