X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=doc%2Frrdgraph_rpn.pod;h=b2a84dd9daa4a1c55d3a354e9de577918e94cc14;hb=f8c81c20d9fe8183cb481944cd9b29ace3ee37aa;hp=6e31ea6d09916eda496096b02f23acb5ad7d6002;hpb=c201fa0decdd835c7edbe19a221f5b7564c3e8cf;p=rrdtool.git

diff --git a/doc/rrdgraph_rpn.pod b/doc/rrdgraph_rpn.pod
index 6e31ea6..b2a84dd 100644
--- a/doc/rrdgraph_rpn.pod
+++ b/doc/rrdgraph_rpn.pod
@@ -127,6 +127,10 @@ B<DEG2RAD, RAD2DEG>
 
 Convert angle in degrees to radians, or radians to degrees.
 
+B<ABS>
+
+Take the absolute value.
+
 =item Set Operations
 
 B<SORT, REV>