Hello, I would like to suggest the following patch: Regards, ralf --- ginac.texi~ Fri Jul 23 16:29:57 2004 +++ ginac.texi Wed Jul 28 11:30:44 2004 @@ -6307,6 +6307,14 @@ option which is explained in the next section. +@subsection Overloaded functions + +If you ever intend to construct functions that differ only in the number +of parameters but have the same name then the macros of the previous +section no longer can accomplish the task. In that case, we can only +advise you read the source code and how we did it in the cases of +@code{psi} and @code{zeta}. It can be found in the files @code{inifcns.h}, +@code{inifcns_gamma.cpp} and @code{inifcns_nstdsums.cpp}, respectively. @node Printing, Structures, Symbolic functions, Extending GiNaC @c node-name, next, previous, up