Constant std::f32::consts::FRAC_PI_8
pub const FRAC_PI_8: f32 = 0.39269908169872415480783042290993786f32; // 0.392699093f32
π/8
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Licensed under the Apache License, Version 2.0 or the MIT license, at your option.
https://doc.rust-lang.org/std/f32/consts/constant.FRAC_PI_8.html