| title | TAN (Transact-SQL) | Microsoft Docs | ||
|---|---|---|---|
| ms.custom | |||
| ms.date | 03/03/2017 | ||
| ms.prod | sql | ||
| ms.prod_service | database-engine, sql-database, sql-data-warehouse, pdw | ||
| ms.reviewer | |||
| ms.technology | t-sql | ||
| ms.topic | language-reference | ||
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| ms.assetid | f679fa6a-5739-484b-9450-fb3400d4f30c | ||
| author | MashaMSFT | ||
| ms.author | mathoma | ||
| manager | craigg | ||
| monikerRange | >=aps-pdw-2016||=azuresqldb-current||=azure-sqldw-latest||>=sql-server-2016||=sqlallproducts-allversions||>=sql-server-linux-2017||=azuresqldb-mi-current |
[!INCLUDEtsql-appliesto-ss2008-all-md]
Returns the tangent of the input expression.
Transact-SQL Syntax Conventions
TAN ( float_expression )
float_expression
Is an expression of type float or of a type that can be implicitly converted to float, interpreted as number of radians.
float
The following example returns the tangent of PI()/2.
SELECT TAN(PI()/2);
[!INCLUDEssResult]
----------------------
1.6331778728383844E+16
The following example returns the tangent of .45.
SELECT TAN(.45);
[!INCLUDEssResult]
--------
0.48