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FINE_STRUCTURE

Constant FINE_STRUCTURE 

Source
pub const FINE_STRUCTURE: f64 = crate::math::constants::ALPHA; // 0.0072973525693000004f64
Expand description

Fine-structure constant α ≈ 1/137, re-exported from crate::math::constants::ALPHA. The 7.297e-3 that used to be written here was the same constant to four digits and a different number after them.