Synced to HEAD:

[ginac.git] / doc / tutorial / ginac.texi

diff --git a/doc/tutorial/ginac.texi b/doc/tutorial/ginac.texi
index c92e38dcf9b8e6112b9919d9cbab8433d4b52964..b2038db5bd68e2cd06d359eb6466665e38498ed4 100644 (file)
--- a/doc/tutorial/ginac.texi
+++ b/doc/tutorial/ginac.texi
@@ -15,6 +15,7 @@
 
 @include version.texi
 
+@dircategory Mathematics
 @direntry
 * ginac: (ginac).                   C++ library for symbolic computation.
 @end direntry
@@ -7822,7 +7823,8 @@ Now we will start implementing a new class @code{mystring} that allows
 placing character strings in algebraic expressions (this is not very useful,
 but it's just an example). This class will be a direct subclass of
 @code{basic}. You can use this sample implementation as a starting point
-for your own classes.
+for your own classes @footnote{The self-contained source for this example is
+included in GiNaC, see the @file{doc/examples/mystring.cpp} file.}.
 
 The code snippets given here assume that you have included some header files
 as follows: