Section: New Software and Platforms

Gfun

Participant : Bruno Salvy.

Gfun is a Maple package for the manipulation of linear recurrence or differential equations. It provides tools for guessing a sequence or a series from its first terms; for manipulating rigorously solutions of linear differential or recurrence equations, using the equation as a data-structure. This year, the implementation effort was focused on speeding up the guessing routines in the case of sequences with symbolic parameters that come up in general hypergeometric identities.