Dear developpers,
1)
Does you use this reference to compute Spherical Bessel Functions for real argument?
Accurate recursive generation of spherical Bessel and Neumann functions for a large range of indices
E. Gillman
1
and
H. R. Fiebig
Comput. Phys.
2
, 62
(1988)
;
http://dx.doi.org/10.1063/1.168296
2) is there a way to speed up the computation of j_nu(x) if one wants 10 digits accuracy for instance?
Best regards
J.E