`dlog_vec, dlog_vec_add`

Synopsis#include <flint/dlog.h>

void dlog_vec(ulong * v, ulong nv, ulong a, ulong va, nmod_t mod, ulong na, nmod_t order)source

void dlog_vec_add(ulong * v, ulong nv, ulong a, ulong va, nmod_t mod, ulong na, nmod_t order)source

Set $v[k]$ to $v_a \log_a(k) \bmod \mathit{order}$ , or (the add version) add it to $v[k]$ modulo order for every $k$ with $v[k] \ne$ DLOG_NONE. They do nothing if $v_a = 0$ . Both use loop if $6 n_a < \mathit{nv}$ and sieve otherwise.

Cite this page

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

@misc{flint-doc-dlog-dlog-vec,
  author       = {{The FLINT team}},
  title        = {{dlog\_vec, dlog\_vec\_add (dlog.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/dlog/dlog_vec.html},
  note         = {Generated 2026-11-02}
}

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