Constant kvarn::prelude::internals::prelude::utils::prelude::compact_str::core::f32::consts::FRAC_2_PI

pub const FRAC_2_PI: f32 = 0.636619772367581343075535053490057448f32; // 0.636619746f32

Available on non-crate feature miri-test-libstd only.

2/π