tan-transact-sql.md

title	TAN (Transact-SQL) | Microsoft Docs
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ms.date	03/03/2017
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TAN (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-all_md]

Returns the tangent of the input expression.

Transact-SQL Syntax Conventions

Syntax

-- Syntax for SQL Server, Azure SQL Database, Azure SQL Data Warehouse, Parallel Data Warehouse  
  
TAN ( float_expression )  

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)