FLINT3.7.0-dev

_acb_poly_powsum_series_tree_guard_bits

Synopsis#include <flint/acb_poly.h>
slong _acb_poly_powsum_series_tree_guard_bits(const acb_t s, const acb_t a, const acb_t q, const acb_t c, slong n, slong len)source

Returns the number of guard bits used by _acb_poly_powsum_series_tree for the exact parameters s, a, q and the centre c: roughly a constant times \min(n, \mathit{len}) plus a term for the variation of the weights, estimated in double precision from a sample of the terms.

Cite this page

The FLINT team, “_acb_poly_powsum_series_tree_guard_bits (acb_poly.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/acb_poly/_acb_poly_powsum_series_tree_guard_bits.html (generated 2026-10-20).