a # 1 60 R ' r#kd medit m;Lio                                           '
a # a,[1]  ' r#(((1Ykd),1URm)Ym)on(CQ)on((1Ukd),0)Um#matrix m H Lio#1   '
a # a,[1]  ' $0                                                         '
a # a,[1]  '"medit - edit matrix                                        '
a # a,[1]  '"from ''the apl handbook of techniques'' copyright 1978, ibm. '
a # a,[1]  '"-returns a modified form of structure m as a matrix.       '
a # a,[1]  '"-kd is a pair of integers, the first, k, signifies the     '
a # a,[1]  '" number of rows of m preceding the one to be changed,      '
a # a,[1]  '" inserted, or deleted. the second, d, is the line number   '
a # a,[1]  '" to be deleted.                                            '
a # a,[1]  '"-the keyboard will unlock for the expression that will     '
a # a,[1]  '" generate the line(s) to be inserted.                      '
a # a,[1]  '"-the insert may be an altered form of the line(s) deleted. '
a # a,[1]  '"-when k=d, the insert will appear after line k.            '
a # a,[1]  '"-when k>d, d-k lines will be deleted before accepting the  '
a # a,[1]  '" insert.  (if k>d, k-d original rows will appear before and'
a # a,[1]  '" after the insert.)                                        '
a # a,[1]  '"-uses: Gmatrix Gon GH                                      '
Lfx a