## 9.3.13 ASIN (X)

Description: | Produces the arcsine of X.
Class: | Elemental function; Generic
Arguments: | X must be of type real. The |X| must be less than or equal to 1.
Results: | The result type is the same as X and is expressed in radians. The value lies in the range -pi/2 to pi/2.

Specific Name | Argument Type | Result Type
--- | --- | ---
ASIN | REAL(4) | REAL(4)
DASIN | REAL(8) | REAL(8)
QASIN | REAL(16) | REAL(16)

Examples

ASIN (0.79345021) has the value 0.9164571.

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