Merge rounding functions into mathematical functions page

Author: 46bit

src/content/docs/analytics/analytics-engine/sql-reference/mathematical-functions.mdx

@@ -54,3 +54,60 @@ Examples:
 -- get the square of the double1 column
 pow(double1, 2)
 ```
+
+## round <Badge text="New" variant="tip" size="small" />
+
+Usage:
+
+```sql
+round(<expression>[, n])
+```
+
+`round` returns a number rounded to the nearest whole number, or to a given number of decimal points specified by the second argument.
+
+Examples:
+
+```sql
+-- round 5.5 to 6
+round(5.5)
+-- round 3.14 to 3.1
+round(3.14, 1)
+```
+
+## floor <Badge text="New" variant="tip" size="small" />
+
+Usage:
+
+```sql
+floor(<expression>[, n])
+```
+
+`floor` returns a number rounded down to a whole number, or rounded down to a given number of decimal points specified by the second argument.
+
+Examples:
+
+```sql
+-- round down 5.5 to 5
+floor(5.5)
+-- round down 3.14 to 3.1
+floor(3.14, 1)
+```
+
+## ceil <Badge text="New" variant="tip" size="small" />
+
+Usage:
+
+```sql
+ceil(<expression>[, n])
+```
+
+`ceil` returns a number rounded up to a whole number, or rounded up to a given number of decimal points specified by the second argument.
+
+Examples:
+
+```sql
+-- round up 5.5 to 6
+ceil(5.5)
+-- round up 3.14 to 3.2
+ceil(3.14, 1)
+```

src/content/docs/analytics/analytics-engine/sql-reference/rounding-functions.mdx

@@ -2,7 +2,7 @@
 title: String functions
 pcx_content_type: reference
 sidebar:
-  order: 11
+  order: 10
 head:
   - tag: title
     content: SQL Reference

src/content/docs/analytics/analytics-engine/sql-reference/string-functions.mdx

@@ -2,7 +2,7 @@
 title: Type conversion functions
 pcx_content_type: reference
 sidebar:
-  order: 12
+  order: 11
 head:
   - tag: title
     content: SQL Reference