## _mm256_mask_rsqrt14_pd

# Function _mm256_mask_rsqrt14_pd

1.89.0 · Source

    pub fn _mm256_mask_rsqrt14_pd(src: __m256d, k: __mmask8, a: __m256d) -> __m256d

Available on x86-64 and target feature `avx512f` and target feature `avx512vl` 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 using writemask k (elements are copied from src when the corresponding mask bit is not set). The maximum relative error for this approximation is less than 2^-14.

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