black76/constants.rs
1//! Constants
2pub const N_MEAN: f32 = 0.0;
3pub const N_STD_DEV: f32 = 1.0;
4pub const SQRT_2PI: f32 = 2.5066282746310005024157652848110452530069867;
5pub const HALF: f32 = 0.5;
6pub const DAYS_PER_YEAR: f32 = 365.25;
7pub use std::f32::consts::{E, PI};
8
9pub const A: f32 = 4.62627532e-01;
10pub const B: f32 = -1.16851917e-02;
11pub const C: f32 = 9.63541838e-04;
12pub const D: f32 = 7.53502261e-05;
13pub const _E: f32 = 1.42451646e-05;
14pub const _F: f32 = -2.10237683e-05;