Tutorials References Menu

MySQL Tutorial

MySQL HOME MySQL Intro MySQL RDBMS

MySQL SQL

MySQL SQL MySQL SELECT MySQL WHERE MySQL AND, OR, NOT MySQL ORDER BY MySQL INSERT INTO MySQL NULL Values MySQL UPDATE MySQL DELETE MySQL LIMIT MySQL MIN and MAX MySQL COUNT, AVG, SUM MySQL LIKE MySQL Wildcards MySQL IN MySQL BETWEEN MySQL Aliases MySQL Joins MySQL INNER JOIN MySQL LEFT JOIN MySQL RIGHT JOIN MySQL CROSS JOIN MySQL Self Join MySQL UNION MySQL GROUP BY MySQL HAVING MySQL EXISTS MySQL ANY, ALL MySQL INSERT SELECT MySQL CASE MySQL Null Functions MySQL Comments MySQL Operators

MySQL Database

MySQL Create DB MySQL Drop DB MySQL Create Table MySQL Drop Table MySQL Alter Table MySQL Constraints MySQL Not Null MySQL Unique MySQL Primary Key MySQL Foreign Key MySQL Check MySQL Default MySQL Create Index MySQL Auto Increment MySQL Dates MySQL Views

MySQL References

MySQL Data Types MySQL Functions

MySQL Examples

MySQL Examples

MySQL ATAN() Function

❮ MySQL Functions

Example

Return the arc tangent of a number:

SELECT ATAN(2.5);
Try it Yourself »

Definition and Usage

The ATAN() function returns the arc tangent of one or two numbers.

Syntax

ATAN(number)

OR:

ATAN(a, b)

Parameter Values

Parameter Description
number A numeric value
a, b Two numeric values to calculate the arc tangent of

Technical Details

Works in: From MySQL 4.0

More Examples

Example

Return the arc tangent of two values:

SELECT ATAN(-0.8, 2);
Try it Yourself »

❮ MySQL Functions