Developer Guide and Reference

ID 767251
Date 10/31/2024
Public
Document Table of Contents

ASIN

Elemental Intrinsic Function (Generic): Produces the arcsine of an argument in radians.

result = ASIN (x)

x

(Input) Must be of type real, where | x | must be less than or equal to 1, or of type complex.

Results

The result type and kind are the same as x.

If the result is real, it is expressed in radians and lies in the range - pi/2 <= ASIN (x) <= pi/2.

If the result is complex, the real part is expressed in radians and lies in the range pi/2 <= REAL (ASIN (x)) <= pi/2.

Specific Name

Argument Type

Result Type

ASIN

REAL(4)

REAL(4)

DASIN

REAL(8)

REAL(8)

QASIN

REAL(16)

REAL(16)

Example

ASIN (0.79345021) has the value 0.9164571.