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Functions
gdouble | ncm_sf_sbessel () |
void | ncm_sf_sbessel_taylor () |
NcmSpline * | ncm_sf_sbessel_spline () |
Functions
ncm_sf_sbessel ()
gdouble ncm_sf_sbessel (gulong l
,gdouble x
);
Computes Spherical Bessel function $j_\ell(x)$.
ncm_sf_sbessel_taylor ()
void ncm_sf_sbessel_taylor (gulong l
,gdouble x
,gdouble *djl
);
Computes Spherical Bessel function power series coefficients up to order three, i.e., $$\left(j_\ell(x),\; j'_\ell(x), \frac{j''_\ell(x)}{2!}, \frac{j'''_\ell(x)}{3!}\right).$$
ncm_sf_sbessel_spline ()
NcmSpline * ncm_sf_sbessel_spline (gulong l
,gdouble xi
,gdouble xf
,gdouble reltol
);
Computes a spline approximation of the Spherical Bessel $j_\ell$ in the interval $[x_i, x_f]$.