_acb_poly_graeffe_transform, acb_poly_graeffe_transform
Synopsis
#include <flint/acb_poly.h>void _acb_poly_graeffe_transform(acb_ptr b, acb_srcptr a, slong len, slong prec)sourcevoid acb_poly_graeffe_transform(acb_poly_t b, const acb_poly_t a, slong prec)sourceSet b to the Graeffe transform G of P = a, defined by G(x^2) = (-1)^d P(x) P(-x) with d = \deg P, so that the roots of G are the squares of the roots of P. The underscore version reads {a, len}, writes len coefficients and allows aliasing.
Cite this page
The FLINT team, “_acb_poly_graeffe_transform, acb_poly_graeffe_transform (acb_poly.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/acb_poly/_acb_poly_graeffe_transform.html (generated 2026-10-20).
@misc{flint-doc-acb-poly-acb-poly-graeffe-transform,
author = {{The FLINT team}},
title = {{\_acb\_poly\_graeffe\_transform, acb\_poly\_graeffe\_transform (acb\_poly.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/acb_poly/_acb_poly_graeffe_transform.html},
note = {Generated 2026-10-20}
}