Half-Integer spins

[mikelmartinb]

The code states that Clebsch-Gordan coefficients and Wigner 3j-symbols with half integer entries are sacrificed for the sake of being able to use numba. Would the recursion relations still work if half-integers were used? (disabling numba, of course)

Thanks

[CataGuo]

Without the support of half-integer entries, this code is really much less useful in quantum mechanics. But calculating things with half-integer entries seems not the meaning of this project as there are already lots of ready-made packages supporting such occasions.