Function surge_halfrate::imports::_mm_rsqrt14_sd
source · [−]🔬 This is a nightly-only experimental API. (
stdsimd
)This is supported with target feature
avx512f
only.Expand description
Compute the approximate reciprocal square root of the lower double-precision (64-bit) floating-point element in b, store the result in the lower element of dst, and copy the upper element from a to the upper element of dst. The maximum relative error for this approximation is less than 2^-14.