Constant FRAC_1_SQRT_3 

pub const FRAC_1_SQRT_3: f128 = 0.577350269189625764509148780501957455647601751270126876018602_f128 /* 0.577350269189625764509148780501957409f128 */;

🔬This is a nightly-only experimental API. (f128 #116909)

1/sqrt(3)