Home Manual Packages Global Index Keywords Quick Reference | # 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 55
SEE ALSO: | legndr