2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70757We study the correlations of directions $P_0 P$ in the Euclidean plane, where $P_0$ is a point in a fixed disc, $P$ is an integer lattice point in the square $[-Q,Q]^2$, and $Q\to \infty$.33 pages, 3 figuresNumber Theory11J71; 11J20; 11P21text