To cite package ‘bignum’ in publications use:

  Hall D (2024). _bignum: Arbitrary-Precision Integer and
  Floating-Point Mathematics_. R package version 0.3.2.9000, ,
  <https://github.com/davidchall/bignum>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {bignum: Arbitrary-Precision Integer and Floating-Point Mathematics},
    author = {David Hall},
    year = {2024},
    note = {R package version 0.3.2.9000, 
},
    url = {https://github.com/davidchall/bignum},
  }