def isqrt

import bend-collections@1.0.0.0/src/math/w64.bend as W64

import Base
import bend-collections@1.0.0.0/src/math/u64.bend as W

519def isqrt(+n: W.U64) -> W.U64:
520  isqrt_pick(n, U32.is_zero(hi(n)))

Uses (4)