| ClebschGodron | Computes a Clebsch-Gordon coefficient. |
| Combine(Spin, Spin) | Enumerates all the spins that can be obtained by combining two spins. |
| Combine(SpinState, SpinState) | Enumerates all spin states that may be obtained by combining two spin states. |
| SixJ | Computes the value of the 6j symbol for the six given spins. |
| ThreeJ | Computes a 3j symbol. |