FLINT3.7.0-dev

_arb_hypgeom_si_asymp, _arb_hypgeom_si_1f2

Synopsis#include <flint/arb_hypgeom.h>
void _arb_hypgeom_si_asymp(arb_t res, const arb_t z, slong N, slong prec)source
void _arb_hypgeom_si_1f2(arb_t res, const arb_t z, slong N, slong wp, slong prec)source

Compute \operatorname{Si}(z) with N terms of the asymptotic expansion, or of the {}_1F_2 series summed at working precision wp and rounded to prec, including a bound for the truncation error. These are the two methods of arb_hypgeom_si.

Cite this page

The FLINT team, “_arb_hypgeom_si_asymp, _arb_hypgeom_si_1f2 (arb_hypgeom.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/arb_hypgeom/_arb_hypgeom_si_asymp.html (generated 2026-10-20).