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diff --git a/README.markdown b/README.markdown
index f1ac6b3..121b784 100644
--- a/README.markdown
+++ b/README.markdown
@@ -198,6 +198,20 @@ Would return: ['a','b','c']
- *Type*: rvalue
+floor
+-----
+Returns the largest integer less or equal to the argument.
+Takes a single numeric value as an argument.
+
+*Examples:*
+
+ floor('3.8')
+
+Would return: '3'
+
+
+- *Type*: rvalue
+
fqdn_rotate
-----------
Rotates an array a random number of times based on a nodes fqdn.