fq_is_invertible_f
Synopsis
#include <flint/fq.h>Returns whether op is invertible modulo the defining polynomial, using fq_gcdinv. If it is not, f is set to a nontrivial factor of the modulus (the monic GCD of the representative of op and the modulus); this can only happen if the modulus is reducible. Otherwise f is set to one. If op is zero, the function returns 0 and sets f to zero.
Cite this page
The FLINT team, “fq_is_invertible_f (fq.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fq/fq_is_invertible_f.html (generated 2026-10-20).
@misc{flint-doc-fq-fq-is-invertible-f,
author = {{The FLINT team}},
title = {{fq\_is\_invertible\_f (fq.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/fq/fq_is_invertible_f.html},
note = {Generated 2026-10-20}
}