A Multi-Grid Method for the Resolution of Thermodynamic
                            Bethe Ansatz Equations

                       Alfio Borz\`{\i} and Anni Koubek

           SISSA, Scuola Internazionale Superiore di Studi Avanzati
                                Via Beirut 2-4
                                34013 Trieste
                                    Italy

                                   Abstract

We present a multi-grid algorithm in order to solve numerically the
thermodynamic Bethe ansatz equations.  We specifically adapt the program to
compute the data of the conformal field theory reached in the ultraviolet
limit.