pub unsafe fn _mm256_rsqrt14_pd(a: __m256d) -> __m256d🔬This is a nightly-only experimental API. (
stdarch_x86_avx512 #111137)Available on (x86 or x86-64) and target feature
avx512f,avx512vl and x86-64 only.Expand description
Compute the approximate reciprocal square root of packed double-precision (64-bit) floating-point elements in a, and store the results in dst. The maximum relative error for this approximation is less than 2^-14.