## 9.3.4 ACOSD (X)

Description: | Produces the arccosine of X.
Class: | Elemental function; Generic
Arguments: | X must be of type real and must be greater than or equal to zero.The |X| must be less than or equal to 1.
Results: | The result type is the same as X and is expressed in degrees.

Specific Name | Argument Type | Result Type
--- | --- | ---
ACOSD | REAL(4) | REAL(4)
DACOSD | REAL(8) | REAL(8)
QACOSD | REAL(16) | REAL(16)

Examples

ACOSD (0.886579) has the value 27.55354.

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