,5L>G$ ,BRACKETS ,EXAMPLES

#A4 ,TWO BY TWO MATRIX F/ R[ "O
  Z]O SECOND R[ Z]O "O IS WRITT5
  _%

  @,(#1 #0@,)
  @,(#0 #1@,) _:

#B4 ,TWO BY ?REE MATRIX F/ R[ A
  ;B ;C SECOND R[ ;D ;E ;F IS
  WRITT5 _%

  @,(A B C@,)
  @,(D E F@,) _:









                              #A