/usr/share/octave/packages/control-3.0.0/@tfpoly/ is in octave-control 3.0.0-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/control-3.0.0/@tfpoly/__make_equally_long__.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/__remove_leading_zeros__.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/conj_ct.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/conj_dt.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/display.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/eq.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/get.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/is_zero.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/length.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/minus.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/mpower.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/mtimes.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/ne.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/numel.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/plus.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/roots.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/subsref.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/tfpoly.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/tfpoly2str.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/uminus.m
/usr/share/octave/packages/control-3.0.0/@tfpoly/uplus.m