a # 1 60 R ' r#a ccat b                                                 '
a # a,[1]  '"column catenation,scalar replication                       '
a # a,[1]  ' vertab                                                     '
a # a,[1]  ' cformat                                                    '
a # a,[1]  ' cmatrix                                                    '
a # a,[1]  ' rowform                                                    '
a # a,[1]  ' r#a,b                                                      '
a # a,[1]  ' $0                                                         '
a # a,[1]  '"ccat - catenate by columns.                                '
a # a,[1]  '"from ''the apl handbook of techniques'' copyright 1978, ibm. '
a # a,[1]  '"-side-by-side catenation of general structures and types.  '
a # a,[1]  '"-scalars will be replicated if types agree.                '
a # a,[1]  '"-vectors become one-column matrices before catenation.     '
a # a,[1]  '"-numeric types will be padded with zeros.                  '
a # a,[1]  '"-character types will be padded with blanks.               '
a # a,[1]  '"-numeric types will be formatted if to be catenated with   '
a # a,[1]  '" character types.  see Gbeside.                            '
a # a,[1]  '"-a matrix is returned.                                     '
Lfx a