To cite package ‘Deriv’ in publications use:

  Clausen A, Sokol S (2025). _Deriv: R-based Symbolic Differentiation_.
  Deriv package version 4.2,
  <https://CRAN.R-project.org/package=Deriv>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{Deriv}: R-based Symbolic Differentiation},
    author = {Andrew Clausen and Serguei Sokol},
    year = {2025},
    note = {Deriv package version 4.2},
    url = {https://CRAN.R-project.org/package=Deriv},
  }