gr_mat_nullspace_from_rref
Synopsis
#include <flint/gr_mat.h>int gr_mat_nullspace_from_rref(gr_mat_t X, const gr_mat_t A, gr_srcptr Aden, slong rank, gr_ctx_t ctx)sourceSets X to a nullspace basis given a reduced row echelon form A of rank rank, as computed by gr_mat_rref, or by gr_mat_rref_den with the denominator Aden (NULL for an ordinary rref). X must have n rows and n - \mathit{rank} columns. Returns GR_UNABLE if a pivot position cannot be identified because a zero test is undecidable.
Cite this page
The FLINT team, “gr_mat_nullspace_from_rref (gr_mat.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/gr_mat/gr_mat_nullspace_from_rref.html (generated 2026-10-20).
@misc{flint-doc-gr-mat-gr-mat-nullspace-from-rref,
author = {{The FLINT team}},
title = {{gr\_mat\_nullspace\_from\_rref (gr\_mat.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/gr_mat/gr_mat_nullspace_from_rref.html},
note = {Generated 2026-10-20}
}