def lj_row_elem
import bend-prot@0.1.0.0/force.bend as Forceimport Base
import bend-prot@0.1.0.0/geom.bend as G
import bend-prot@0.1.0.0/protein.bend as P
281def lj_row_elem(+si: U32, +pi: G.Vec3, +ys: List<&2, P.Atom>, +c2: F32) -> F32:
282 match ys:
283 case Nil{}:
284 0.0
285 case h <> t:
286 (lj_row_elem(si, pi, t, c2) + lj_head_elem(si, pi, c2, h) : F32)