`n_flog, n_clog`

Synopsis#include <flint/ulong_extras.h>

ulong n_flog(ulong n, ulong b)source

ulong n_clog(ulong n, ulong b)source

Returns $\lfloor \log_b n \rfloor$ and $\lceil \log_b n \rceil$ respectively. Requires $n \ge 1$ and $b \ge 2$ .

Cite this page

The FLINT team, “n_flog, n_clog (ulong_extras.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/ulong_extras/n_flog.html (generated 2026-11-02).

@misc{flint-doc-ulong-extras-n-flog,
  author       = {{The FLINT team}},
  title        = {{n\_flog, n\_clog (ulong\_extras.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/ulong_extras/n_flog.html},
  note         = {Generated 2026-11-02}
}

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