From 1a087da40236066ad21b78951531763761615cf6 Mon Sep 17 00:00:00 2001
From: Tobias Oetiker <tobi@oetiker.ch>
Date: Tue, 16 Sep 2014 11:04:01 +0200
Subject: [PATCH] added documentation for sshipways new functions

---
 doc/rrdgraph_rpn.pod | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/doc/rrdgraph_rpn.pod b/doc/rrdgraph_rpn.pod
index 2eff79d9..f1515fb1 100644
--- a/doc/rrdgraph_rpn.pod
+++ b/doc/rrdgraph_rpn.pod
@@ -359,6 +359,22 @@ B<DUP, POP, EXC>
 Duplicate the top element, remove the top element, exchange the two
 top elements.
 
+B<DEPTH>
+
+pushes the current depth of the stack onto the stack
+
+B<COPY>
+
+pop an integer (X) from the stack and copy the previous X items
+
+B<INDEX>
+
+pop an integer (X) and push the item at position X onto the stack
+
+B<ROLL>
+
+pop an integer (X) and rotate the content of the stack by X (positive is forward and negative is backward).
+
 Z<>
 
 =back
-- 
2.47.3