Constant std::f128::consts::FRAC_PI_8

pub const FRAC_PI_8: f128 = 0.392699081698724154807830422909937860524646174921888227621868_f128; // 0.39269908169872415480783042290993785f128

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

π/8