/usr/share/octave/packages/control-2.6.2/@tfpoly/ is in octave-control 2.6.2-1build1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/control-2.6.2/@tfpoly/__make_equally_long__.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/__remove_leading_zeros__.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/conj_ct.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/conj_dt.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/display.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/eq.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/get.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/length.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/minus.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/mpower.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/mtimes.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/ne.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/numel.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/plus.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/roots.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/subsref.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/tfpoly.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/tfpoly2str.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/uminus.m
/usr/share/octave/packages/control-2.6.2/@tfpoly/uplus.m