a # 1 60 R 'z # a addrows b                                             '
a # a,[1]  '"addrows - add rows to a matrix vector or scalar.           '
a # a,[1]  '"from ''the apl handbook of techniques'' copyright 1978, ibm. '
a # a,[1]  '">converts scalar and vector right arguments into one-row   '
a # a,[1]  '" matrices and pads them out on top (positive left argument)'
a # a,[1]  '" or on the bottom (negative left argument).  right argument'
a # a,[1]  '" may be either numeric or character.                       '
a # a,[1]  '">uses: matrix.                                             '
a # a,[1]  'z#((_a+(Xa)X1YRb),1URb)Yb#matrix b                          '
Lfx a