`_fmpz_mod_poly_radix_init`

Synopsis#include <flint/fmpz_mod_poly.h>

void _fmpz_mod_poly_radix_init(fmpz ** Rpow, fmpz ** Rinv, const fmpz * R, slong lenR, slong k, const fmpz_t invL, const fmpz_mod_ctx_t ctx)

source

Computes the powers $R^{2^i}$ and the inverses of their reversals modulo $x^{2^i \deg R}$ for $0 \le i < k$ , where invL is the inverse of the leading coefficient of $R$ . Rpow[i] and Rinv[i] need space for $2^i \deg R + 1$ and $2^i \deg R$ coefficients. The data can be used for all $F$ with $\mathrm{len}(F) \le 2^k \deg R$ .

Cite this page

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

@misc{flint-doc-fmpz-mod-poly-fmpz-mod-poly-radix-init,
  author       = {{The FLINT team}},
  title        = {{\_fmpz\_mod\_poly\_radix\_init (fmpz\_mod\_poly.h)}},
  howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
  year         = {2026},
  url          = {https://flintlib.org/doc/fmpz_mod_poly/_fmpz_mod_poly_radix_init.html},
  note         = {Generated 2026-11-02}
}

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