Communications between the Poisson series processor PSPC and general scientific software

Special efficient Poisson series processors (PSP) have been created. Poison series appear frequently in problems of non-linear dynamics and celestial mechanics and their size makes their manipulation by means of general computer algebra systems (CAS) inefficient, but the characteristics of the problems suggest the use of general CAS with other general scientific software like compilers, libraries of compiled programs or word processors. To combine these specialized and general tools we need to communicate between them. In this paper we describe the tools to share information between PSPC, our own PSP, and other general software.