_fft_small_fft_mpn_trunc
Synopsis
#include <flint/fft_small.h>void _fft_small_fft_mpn_trunc(fft_small_op_t X, const ulong * a, ulong an, ulong otrunc, const fft_small_plan_t P)sourceLike fft_small_fft_mpn, with the transforms truncated to their first otrunc points, which suffices for products of at most otrunc slots. Requires otrunc \le P->ztrunc, a multiple of 256 or equal to P->ztrunc; fft_small_fft_mpn is the case otrunc = P->ztrunc.
Cite this page
The FLINT team, “_fft_small_fft_mpn_trunc (fft_small.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/fft_small/_fft_small_fft_mpn_trunc.html (generated 2026-10-20).
@misc{flint-doc-fft-small-fft-small-fft-mpn-trunc,
author = {{The FLINT team}},
title = {{\_fft\_small\_fft\_mpn\_trunc (fft\_small.h)}},
howpublished = {FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev},
year = {2026},
url = {https://flintlib.org/doc/fft_small/_fft_small_fft_mpn_trunc.html},
note = {Generated 2026-10-20}
}