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Oracle® Database SQL Reference
10g Release 1 (10.1)

Part Number B10759-01
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ASIN


Syntax

asin::=
Description of asin.gif follows
Description of the illustration asin.gif


Purpose

ASIN returns the arc sine of n. The argument n must be in the range of -1 to 1, and the function returns a value in the range of -pi/2 to pi/2, expressed in radians.

This function takes as an argument any numeric datatype or any nonnumeric datatype that can be implicitly converted to a numeric datatype. If the argument is BINARY_FLOAT, then the function returns BINARY_DOUBLE. Otherwise the function returns the same numeric datatype as the argument.


See Also:

Table 2-11, "Implicit Type Conversion Matrix" for more information on implicit conversion


Examples

The following example returns the arc sine of .3:

SELECT ASIN(.3) "Arc_Sine" FROM DUAL;

 Arc_Sine
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