An algebraic approximation, of order $K$, a polyhedron correlation function (CF) can be obtained from $\gamma\pp(r)$, its chord-length distribution (CLD), considering first, within the subinterval $[D_{i-1},\, D_i]$ full range distances, polynomial in two variables $(r-D_{i-1})^{1/2}$ and $(D_{i}-r)^{1/2}$ such that expansions around $r=D_{i-1}$ $r=D_i$ simultaneously coincide with left right $...
