To cite GNU Octave in publications use:

  John W. Eaton, David Bateman, Søren Hauberg, Rik Wehbring (2018).
  GNU Octave version 4.2.2 manual: a high-level interactive language for
  numerical computations.
  URL https://www.gnu.org/software/octave/doc/v4.2.2/

A BibTeX entry for LaTeX users is:

  @manual{,
    title     = {{GNU Octave} version 4.2.2 manual: a high-level interactive language for numerical computations},
    author    = {John W. Eaton and David Bateman and S{\o}ren Hauberg and Rik Wehbring},
    year      = {2018},
    url       = {https://www.gnu.org/software/octave/doc/v4.2.2/},
  }

We have invested a lot of time and effort in creating GNU Octave, please cite it
when using it.  See also `citation pkgname' for citing Octave packages.
