diff --git a/doc/rrdgraph_rpn.pod b/doc/rrdgraph_rpn.pod
index 6e31ea6d09916eda496096b02f23acb5ad7d6002..b2a84dd9daa4a1c55d3a354e9de577918e94cc14 100644 (file)
--- a/doc/rrdgraph_rpn.pod
+++ b/doc/rrdgraph_rpn.pod
Convert angle in degrees to radians, or radians to degrees.
+B<ABS>
+
+Take the absolute value.
+
=item Set Operations
B<SORT, REV>