Finite-lattice extrapolation algorithms

Abstract

Two algorithms for sequence extrapolation, due to van den Broeck and Schwartz (1979), and Bulirsch and Stoer (1964), are reviewed and critically compared. Applications to three-state and six-state quantum chains and to the (2+1)D Ising model show that the algorithm of Bulirsch and Stoer is superior, in particular if only very few finite-lattice data are available.