Constant statrs::consts::EULER_MASCHERONI

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pub const EULER_MASCHERONI: f64 = 0.5772156649015328606065120900824024310421593359399235988057672348849;
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Constant value for Euler-Masheroni constant lim(n -> inf) { sum(k=1 -> n) { 1/k - ln(n) } }