a # 1 60 R ' r#a fills b                                                '
a # a,[1]  ' cformat                                                    '
a # a,[1]  ' conform                                                    '
a # a,[1]  ' r#(Rb)R(b=1Y0Rb)`Rb,[Lio_0.5]a                             '
a # a,[1]  ' $0                                                         '
a # a,[1]  '"fills - replace vacant elements.                           '
a # a,[1]  '"from ''the apl handbook of techniques'' copyright 1978, ibm. '
a # a,[1]  '"-the structure a, which may be scalar, will appear         '
a # a,[1]  '" in vacant space of b. in a numeric structure              '
a # a,[1]  '" zero signifies vacancy.  disparate structures will be     '
a # a,[1]  '" made to conform.  unless offset, the first element of     '
a # a,[1]  '" a will map into the first element of b.                   '
a # a,[1]  '" if one, but not both of the operands, is numeric,         '
a # a,[1]  '" it will be converted to character form.                   '
a # a,[1]  '"-uses: Gcformat Gconform                                   '
a # a,[1]  '                                                            '
Lfx a