Constant kvarn::prelude::utils::prelude::compact_str::core::f64::consts::FRAC_PI_8

pub const FRAC_PI_8: f64 = 0.39269908169872415480783042290993786f64; // 0.39269908169872414f64

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

π/8