ASIN

Returns the angle, in radians, whose sine is the given float expression (also called arcsine).

Syntax

ASIN ( float_expression )

Arguments

float_expression

Is an expression of the type float, with a value from -1 through 1. Values outside this range return NULL and report a domain error.

Return Types

float

Examples

This example takes a float expression and returns the ASIN of the given angle.

-- First value will be -1.01, which fails.
DECLARE @angle float
SET @angle = -1.01
SELECT 'The ASIN of the angle is: ' + CONVERT(varchar, ASIN(@angle))
GO

-- Next value is -1.00.
DECLARE @angle float
SET @angle = -1.00
SELECT 'The ASIN of the angle is: ' + CONVERT(varchar, ASIN(@angle))
GO

-- Next value is 0.1472738.
DECLARE @angle float
SET @angle = 0.1472738
SELECT 'The ASIN of the angle is: ' + CONVERT(varchar, ASIN(@angle))
GO

Here is the result set:

-------------------------
The ASIN of the angle is:                                

(1 row(s) affected)

Domain error occurred.

                                                         
--------------------------------- 
The ASIN of the angle is: -1.5708                        

(1 row(s) affected)

                                                         
---------------------------------- 
The ASIN of the angle is: 0.147811                       

(1 row(s) affected)

See Also

CEILING

Mathematical Functions

SET ARITHIGNORE

SET ARITHABORT