The f-polynomial of $P$ is the polynomial such that the coefficient on $q^i$ is the number of chains of length $i$ in $P$.
The f-polynomial of the $n$ chain is $(q+1)^n$.
i1 : n = 5; |
i2 : factor fPolynomial chain n 5 o2 = (q + 1) o2 : Expression of class Product |
The object fPolynomial is a method function with options.