## functions in legndr.i - y

ylm_coef

ylm_coef(l,m) return sqrt((2*l+1)(l-m)!/(4*pi*(l+m)!)), the normalization coefficient for spherical harmonic Ylm with respect to the associated Legendre function Plm. In this implementation, 0<=m<=l; use symmetry for m<0, or use sines and cosines instead of complex exponentials. Unlike Plm, array L and M arguments are permissible here. WARNING: These get combinitorially small with large L and M; probably Plm is simultaneously blowing up and should be normalized directly in legndr if what you want is Ylm. But I don't feel like working all that out -- if you need large L and M results, you should probably be working with some sort of asymptotic form anyway... Interpreted function, defined at i/legndr.i line 55SEE ALSO: legndr