Function
NumCosmoMathsf_sbessel_taylor
Declaration [src]
void
ncm_sf_sbessel_taylor (
gulong l,
gdouble x,
gdouble* djl
)
Description [src]
Computes Spherical Bessel function power series coefficients up to order three, i.e., $$\left(j_\ell(x),\; j’\ell(x), \frac{j”\ell(x)}{2!}, \frac{j”’_\ell(x)}{3!}\right).$$.
Parameters
l-
Type:
gulongSpherical Bessel order $\ell$.
x-
Type:
gdoubleSpherical Bessel argument $x$.
djl-
Type: An array of
gdoubleOutput power series coefficients.
The argument will be set by the function. The array must have 4 elements. The caller of the function takes ownership of the returned data, and is responsible for freeing it.