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)