FLINT3.7.0-dev
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radix_rsqrt_1_approx_basecase, radix_rsqrt_1_approx

Synopsis#include <flint/radix.h>
void radix_rsqrt_1_approx_basecase(nn_ptr res, ulong a, slong n, const radix_t radix)source
void radix_rsqrt_1_approx(nn_ptr res, ulong a, slong n, const radix_t radix)source

Set (\mathit{res}, n) to the fraction limbs of an approximation of 1/\sqrt a for 2 \le a < B, with error less than 2 B^{-n}.

Cite this page

The FLINT team, “radix_rsqrt_1_approx_basecase, radix_rsqrt_1_approx (radix.h),” FLINT: Fast Library for Number Theory, documentation, version 3.7.0-dev, 2026. https://flintlib.org/doc/radix/radix_rsqrt_1_approx_basecase.html (generated 2026-10-20).