# Function _mm_maskz_fcmul_sch

Source

    pub fn _mm_maskz_fcmul_sch(k: __mmask8, a: __m128h, b: __m128h) -> __m128h

🔬This is a nightly-only experimental API. (`stdarch_x86_avx512_f16` #127213)
Available on (x86 or x86-64) and target feature `avx512fp16` and x86 only.
Expand description

Multiply the lower complex numbers in a by the complex conjugates of the lower complex numbers in b, and store the results in dst using zeromask k (the element is zeroed out when mask bit 0 is not set). Each complex number is composed of two adjacent half-precision (16-bit) floating-point elements, which defines the complex number `complex = vec.fp16[0] + i * vec.fp16[1]`, or the complex conjugate `conjugate = vec.fp16[0] - i * vec.fp16[1]`.

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