pub fn spherical_radial(l: u32, z: Complex, radial: Radial) -> Result<RadialJet>Expand description
Evaluate a spherical radial function and its first two derivatives: j_l for
regular and h1_l for singular waves.
The regular solution uses its convergent power series near zero; away from zero, complex Bessel evaluation and the spherical differential equation apply. Singular (outgoing) waves fail at zero; near it, where the value or a derivative overflows, they fail with an overflow error.
Upstream: treams.special.spherical_jn and spherical_hankel1 with their _d
derivatives.