

   VVeeccttoorr MMeerrggiinngg

        append(x, values, after=length(x))

   AArrgguummeennttss::

          x: the vector to be modified.

     values: to be included in the modified vector.

      after: a subscript, after which the values are to be
             appended.

   VVaalluuee::

        A vector containing the values in `x' with the elements
        of `values' appended after the specified element of
        `x'.

   EExxaammpplleess::

        all(append(1:5, 0:1, after=3) ==
            append(1:3, c(0:1, 4:5)))

