2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54486We review the recent exact solution of a matrix model which interpolates between flat and random lattices. The importance of the results is twofold: Firstly, we have developed a new large N technique capable of treating a class of matrix models previously thought to be unsolvable. Secondly, we are able to make a first precise statement about two-dimensional R^2 gravity. These notes are based on a lecture given at the Cargese summer school 1995. They contain some previously unpublished results.14 pages, 2 ps figures, LaTeX file, uses epsfHigh Energy Physics - Theorytext