normalized ALF (Assotiated Legendre Function)

[kruvalig]

In matlab enxist function legendre, and it can compute fully normalized  
assotiated function, and normalized by Schmidt. Does exist anything the  
same in octave.

I now that legendre-function in octave can compute un-normalized function.

And i interested in fully normalized ALF

                 (2-delta(0,m))(2n+1)(n-m)!
P_nm(t) = sqrt(----------------------------) P_nm(t)
                         (n+m)!