question: public String toString ( ) { StringBuffer text = new StringBuffer ( ) ; for ( int i = 0 ; i < m_Elements . length ; i ++ ) { if ( i > 0 ) text . append ( "," ) ; text . append ( Utils . doubleToString ( m_Elements [ i ] , 6 ) ) ; } text . append ( "\n" ) ; return text . toString ( ) ; }
target:  Converts a vector to a string