pub const FRAC_1_SQRT_2: f32 = 0.707106781186547524400844362104849039f32; // 0.707106769f32
1/sqrt(2)
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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_1_SQRT_2.html