question: public final AlgVector add ( AlgVector other ) { AlgVector b = null ; if ( m_Elements != null ) { int n = m_Elements . length ; try { b = ( AlgVector ) clone ( ) ; } catch ( CloneNotSupportedException ex ) { b = new AlgVector ( n ) ; } for ( int i = 0 ; i < n ; i ++ ) { b . m_Elements [ i ] = m_Elements [ i ] + other . m_Elements [ i ] ; } } return b ; }
target:  Returns the sum of this vector with another.