To cite package ‘bignum’ in publications use:

Hall D (2023). bignum: Arbitrary-Precision Integer and Floating-Point Mathematics. R package version 0.3.2.9000, https://github.com/davidchall/bignum.

Corresponding BibTeX entry:

  @Manual{,
    title = {bignum: Arbitrary-Precision Integer and Floating-Point
      Mathematics},
    author = {David Hall},
    year = {2023},
    note = {R package version 0.3.2.9000},
    url = {https://github.com/davidchall/bignum},
  }