# Function core::arch::x86::_mm256_mask_rcp14_pd

source ·

    pub unsafe fn _mm256_mask_rcp14_pd(
        src: __m256d,
        k: __mmask8,
        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 only.
Expand description

Compute the approximate reciprocal 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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