cos-transact-sql.md

title	COS (Transact-SQL) | Microsoft Docs
ms.custom
ms.date	07/24/2017
ms.prod	sql
ms.prod_service	database-engine, sql-database, sql-data-warehouse, pdw
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ms.technology	t-sql
ms.topic	language-reference
f1_keywords	COS COS_TSQL
dev_langs	TSQL
helpviewer_keywords	cosine COS function
ms.assetid	c9fa8ae1-3373-4f3e-9b97-fa05077c1040
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

COS (Transact-SQL)

[!INCLUDEtsql-appliesto-ss2008-all-md]

A mathematical function that returns the trigonometric cosine of the specified angle - measured in radians - in the specified expression.

Transact-SQL Syntax Conventions

Syntax

COS ( float_expression )  

Arguments

float_expression
An expression of type float.

Return types

float

Examples

This example returns the COS value of the specified angle:

DECLARE @angle float;  
SET @angle = 14.78;  
SELECT 'The COS of the angle is: ' + CONVERT(varchar,COS(@angle));  
GO  

[!INCLUDEssResult]

The COS of the angle is: -0.599465                        
  
(1 row(s) affected)  

[!INCLUDEssSDWfull] and [!INCLUDEssPDW]

This example returns the COS values of the specified angles:

SELECT COS(14.76) AS cosCalc1, COS(-0.1472738) AS cosCalc2;   

[!INCLUDEssResult]

cosCalc1  cosCalc2
--------  --------
-0.58     0.99

See also

Mathematical Functions (Transact-SQL)