M site/contents/reference-num.md → site/contents/reference-num.md

@@ -58,4 +58,7 @@ {#op||sum||{{q}}||{{i}}||
 Returns the sum of all items of {{q}}. {{q}} is a quotation of integers. #}
 
 {#op||product||{{q}}||{{i}}||
-Returns the product of all items of {{q}}. {{q}} is a quotation of integers. #}+Returns the product of all items of {{q}}. {{q}} is a quotation of integers. #}
+
+{#op||avg||{{q}}||{{n}}||
+Returns the average of the items of {{q}}. #}