To cite package ‘nleqslv’ in publications use:

  Hasselman B, Carnell R (2026). _nleqslv: Solve Systems of Nonlinear
  Equations_. R package version 3.3.7,
  <https://github.com/bertcarnell/nleqslv>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {nleqslv: Solve Systems of Nonlinear Equations},
    author = {Berend Hasselman and Rob Carnell},
    year = {2026},
    note = {R package version 3.3.7},
    url = {https://github.com/bertcarnell/nleqslv},
  }