Function spherical_degree_derivatives 

pub(crate) fn spherical_degree_derivatives(
    l: i32,
    orders: &[i32],
    k: Complex,
    lattice: &BlochLattice,
    shift: [f64; 3],
    eta: Complex,
) -> Result<Vec<Derivatives>>

Derivatives of the requested orders of one spherical degree. The jet cache shares the radial derivatives as well as the values, with no change to any order’s shell stopping rule or rounding checks.