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SQL Server ATN2() Function

Example

Return the arc tangent of two values:

SELECT ATN2(0.50, 1);
Try it Yourself »

Definition and Usage

The ATN2() function returns the arc tangent of two numbers.

Syntax

ATN2(a, b)

Parameter Values

Parameter Description
a, b Required. Two numeric values to calculate the arc tangent of

Technical Details

Works in: SQL Server (starting with 2008), Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse

More Examples

Example

Return the arc tangent of two values:

SELECT ATN2(-0.8, 2);
Try it Yourself »

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