Function safe_arch::reciprocal_sqrt_m128

source · 
pub fn reciprocal_sqrt_m128(a: m128) -> m128
Expand description

Lanewise 1.0 / sqrt(a) approximation.

let a = m128::from_array([16.0, 9.0, 4.0, 25.0]);
let b = reciprocal_sqrt_m128(a).to_array();
let expected = [0.25, 0.33333, 0.5, 0.2];
for i in 0..4 {
  assert!((b[i] - expected[i]).abs() < 0.001);
}