private boolean calculateRepresentation(){
  double normalized=0.5 + Math.atan(SCALING * value) / Math.PI;
  return setRepresentation((int)Math.round(normalized * maxRepresentation));
}

private boolean calculateRepresentation ( ) { double normalized = 0.5 + Math . atan ( SCALING * value ) / Math . PI ; return setRepresentation ( ( int ) Math . round ( normalized * maxRepresentation ) ) ; }
calculate the representation value .
