2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153089Pascal's triangle will give the number of geodesics from the identity to each point of ${\bf Z}^2$ if you write it in each of the quadrants. Given a group $G$ and generating set $\cal G$ we take the {\it Pascal's function} $p_{\cal G}: G \to {\bf Z}_{\ge 0}$ to be the function which assigns to each $g\in G$ the number of geodesics from $1$ to $g$. We give a general method for calculating this in hyperbolic groups and discuss the generic case in abelian groups.DVI file only, 7 pagesGroup Theorytext