2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/185736Higher transcendental function occur frequently in the calculation of Feynman integrals in quantum field theory. Their expansion in a small parameter is a non-trivial task. We report on a computer program which allows the systematic expansion of certain classes of functions. The algorithms are based on the Hopf algebra of nested sums. The program is written in C++ and uses the GiNaC library.Latex, 16 pages, minor changesMathematical PhysicsSymbolic ComputationHigh Energy Physics - Phenomenologytext