To cite package ‘n1qn1’ in publications use:

Fidler M, Wang W, Lemarechal C (2026). n1qn1: Port of the 'Scilab' 'n1qn1' Module for Unconstrained BFGS Optimization. R package version 6.0.1-14, https://github.com/nlmixr2/n1qn1c.

Corresponding BibTeX entry:

  @Manual{,
    title = {n1qn1: Port of the 'Scilab' 'n1qn1' Module for
      Unconstrained BFGS Optimization},
    author = {Matthew Fidler and Wenping Wang and Claude Lemarechal},
    year = {2026},
    note = {R package version 6.0.1-14},
    url = {https://github.com/nlmixr2/n1qn1c},
  }