From 3a713846b6343a9acb215b5ab3c73f1d3cb2de1d Mon Sep 17 00:00:00 2001
From: Alexander Zobnin <alexanderzobnin@gmail.com>
Date: Sat, 24 Sep 2016 10:41:50 +0300
Subject: [PATCH] Add docs for delta() function.

---
 docs/sources/reference/functions.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/sources/reference/functions.md b/docs/sources/reference/functions.md
index 089edac..10db01f 100644
--- a/docs/sources/reference/functions.md
+++ b/docs/sources/reference/functions.md
@@ -30,6 +30,13 @@ scale(100)
 scale(0.01)
 ```
 
+### delta
+```
+delta()
+```
+Convert absolute values to delta, for example, bits to bits/sec.
+
+
 Aggregate
 ---------