SPECTRAL_FIRST_W

treams_core::lattice::spectral

Constant SPECTRAL_FIRST_W 

Source 
pub(super) const SPECTRAL_FIRST_W: f64 = 2.5;
Expand description

The w = |k| rho |eta| from which a 1D spherical sum tries its spectral series before the Ewald sum, whose reciprocal part then cancels by e^(w^2) or more.