ThreeJSymbol

ThreeJSymbol[{j1, m1}, {j2, m2}, {j3, m3}] gives the values of the Wigner 3-j symbol.

Examples

Compute a 3-j symbol:

ThreeJSymbol[{1, 0}, {1, 0}, {1, 0}]
(* 0 *)

ThreeJSymbol[{1, 1}, {1, -1}, {1, 0}]

Please visit the official Wolfram Language Reference for more details.