Add link to the gmpy project.

diff --git a/Doc/lib/libmpz.tex b/Doc/lib/libmpz.tex
index f0d2d6b152f2f82687443371239c1953d2f45605..1e586dcafd63a9e6eb75bdf7d5a66867039fbb7d 100644 (file)
--- a/Doc/lib/libmpz.tex
+++ b/Doc/lib/libmpz.tex
@@ -96,3 +96,11 @@ An mpz-number has one method:
   The mpz-number must have a value greater than or equal to zero,
   otherwise \exception{ValueError} will be raised.
 \end{methoddesc}
+
+
+\begin{seealso}
+  \seetitle[http://gmpy.sourceforge.net/]{General Multiprecision Python}{
+            This project is building new numeric types to allow
+            arbitrary-precision arithmetic in Python.  Their first
+            efforts are also based on the GNU MP library.}
+\end{seealso}