Added math.rint() -- round according to current IEEE754 mode
diff --git a/Doc/lib/libmath.tex b/Doc/lib/libmath.tex
index af1ac10..f4fd2f2 100644
--- a/Doc/lib/libmath.tex
+++ b/Doc/lib/libmath.tex
@@ -93,6 +93,10 @@
 Return \code{\var{x}**\var{y}}.
 \end{funcdesc}
 
+\begin{funcdesc}{rint}{x, y}
+Return the integer nearest to \var{x} as a real.
+\end{funcdesc}
+
 \begin{funcdesc}{sin}{x}
 Return the sine of \var{x}.
 \end{funcdesc}