Added the ATAN function. This is being used to convert a DS for each vector component...

[rrdtool.git] / doc / rrdgraph_rpn.src

diff --git a/doc/rrdgraph_rpn.src b/doc/rrdgraph_rpn.src
index f9ac7fe..65f0917 100644 (file)
--- a/doc/rrdgraph_rpn.src
+++ b/doc/rrdgraph_rpn.src
@@ -98,6 +98,10 @@ B<SIN, COS, LOG, EXP>
 
 Sine, cosine (input in radians), log, exp (natural logarithm)
 
+B<ATAN>
+
+Arctangent. Output in radians.
+
 B<FLOOR, CEIL>
 
 Round down,up to the nearest integer