-- | Stability : stable -- -- Clebsch-Gordan coefficients and Wigner /n/-j symbols. -- -- Note that all @j@ or @m@ arguments are represented via integers equal to -- /twice/ their mathematical values. To make this distinction clear, we -- label these variables @tj@ or @tm@. -- -- The current implementation uses the exact formulas described by -- <https://doi.org/10.1016/S0010-4655(99)00232-5 L. Wei (1999)> -- (<http://meghnad.iucaa.ernet.in/~tarun/pprnt/compute/ClebADKL.pdf PDF>). -- module WignerSymbols ( -- * 'SignedSqrtRational' SignedSqrtRational , ssr_new , ssr_split , ssr_signum , ssr_numerator , ssr_denominator , ssr_approx -- * Coupling/uncoupling coefficients , clebschGordan , clebschGordanSq , wigner3j , wigner3jSq -- * Recoupling coefficients , wigner6j , wigner6jSq , wigner9j , wigner9jSq ) where import WignerSymbols.Internal