To cite package ‘hypergeo2’ in publications use:

  Zhu X (2024). _hypergeo2: Generalized Hypergeometric Function with
  Tunable High Precision_. R package version 0.2.0.9000,
  <https://github.com/zhuxr11/hypergeo2>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {hypergeo2: Generalized Hypergeometric Function with Tunable High Precision},
    author = {Xiurui Zhu},
    year = {2024},
    note = {R package version 0.2.0.9000},
    url = {https://github.com/zhuxr11/hypergeo2},
  }