tan-transact-sql.md

title	TAN (Transact-SQL)
description	TAN (Transact-SQL)
author	MikeRayMSFT
ms.author	mikeray
ms.reviewer
ms.date	03/03/2017
ms.prod	sql
ms.prod_service	database-engine, sql-database, synapse-analytics, pdw
ms.technology	t-sql
ms.topic	reference
ms.custom
f1_keywords	TAN_TSQL TAN
helpviewer_keywords	TAN function tangent
dev_langs	TSQL
monikerRange	>= aps-pdw-2016 || = azuresqldb-current || = azure-sqldw-latest || >= sql-server-2016 || >= sql-server-linux-2017 || = azuresqldb-mi-current

TAN (Transact-SQL)

[!INCLUDE sql-asdb-asdbmi-asa-pdw]

Returns the tangent of the input expression.

Transact-SQL Syntax Conventions

Syntax

TAN ( float_expression )  

[!INCLUDEsql-server-tsql-previous-offline-documentation]

Arguments

float_expression
Is an expression of type float or of a type that can be implicitly converted to float, interpreted as number of radians.

Return Types

float

Examples

The following example returns the tangent of PI()/2.

SELECT TAN(PI()/2);  

[!INCLUDEssResult]

----------------------  
1.6331778728383844E+16  

Examples: [!INCLUDEssSDWfull] and [!INCLUDEssPDW]

The following example returns the tangent of .45.

SELECT TAN(.45);  

[!INCLUDEssResult]

--------  
0.48

See Also

Mathematical Functions (Transact-SQL)