Function vmul_n_f16 

pub fn vmul_n_f16(a: float16x4_t, b: f16) -> float16x4_t

🔬This is a nightly-only experimental API. (stdarch_neon_f16 #136306)

Available on ARM and target feature fp16 and target feature neon and (AArch64 or ARM or ARM64EC) and (AArch64 or ARM64EC or target feature v7) and non-ARM64EC only.

Vector multiply by scalar Arm’s documentation