pub fn sphere_cluster_factor(
lmax: u32,
k0: f64,
radii: &[f64],
epsilon: &[Complex],
positions: &[[f64; 3]],
) -> Result<InteractionFactor>Expand description
Assemble and factor a sphere cluster for repeated requested illuminations.
The returned factor differentiates the local T blocks, the coupling and the incident
fields. Use IterativeSphereCluster for the
gradients of the radii, permittivities and positions.
treams-rs extension.