To cite package ‘fntl’ in publications use:

  Raim A (2026). _fntl: Numerical Tools for 'Rcpp' and Lambda
  Functions_. R package version 0.1.3,
  <https://CRAN.R-project.org/package=fntl>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {fntl: Numerical Tools for 'Rcpp' and Lambda Functions},
    author = {Andrew M. Raim},
    year = {2026},
    note = {R package version 0.1.3},
    url = {https://CRAN.R-project.org/package=fntl},
  }