| title | TAN (Transact-SQL) | Microsoft Docs | ||
|---|---|---|---|
| ms.custom | |||
| ms.date | 03/03/2017 | ||
| ms.prod | sql-non-specified | ||
| ms.prod_service | database-engine, sql-database, sql-data-warehouse, pdw | ||
| ms.service | |||
| ms.component | t-sql|functions | ||
| ms.reviewer | |||
| ms.suite | sql | ||
| ms.technology |
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| ms.tgt_pltfrm | |||
| ms.topic | language-reference | ||
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| ms.assetid | f679fa6a-5739-484b-9450-fb3400d4f30c | ||
| caps.latest.revision | 22 | ||
| author | edmacauley | ||
| ms.author | edmaca | ||
| manager | craigg | ||
| ms.workload | Inactive |
[!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