def skip( index, start )
      self.class.new *( @sources.skip( index, start ) +
                        [ @table.skip( index, start ) ] )
    end
def skip( index, start )
      self.class.new *( @sources.skip( index, start ) +
                        [ @table.skip( index, start ) ] )
    end
Skip elements of an array

 @param [Variable] index Variable identifying index of array.
 @param [Node] start Wrapped integer with number of elements to skip.

 @return [Node] Returns element-wise operation with elements skipped on each
         operand.

 @private