/usr/share/doc/ruby-gsl/examples/interp/points is in ruby-gsl 2.1.0.3+dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 | 0.000000e+00 1.000000e+00
1.420735e+00 1.540302e+00
2.454649e+00 1.346356e+00
3.070560e+00 2.088870e+00
3.621599e+00 3.042341e+00
4.520538e+00 5.991203e+00
5.860292e+00 5.872036e+00
7.328493e+00 7.300593e+00
8.494679e+00 8.391857e+00
9.206059e+00 9.776686e+00
|