XL Fortran for AIX 8.1

Language Reference

ACOS(X)

Arccosine (inverse cosine) function.

X
must be of type real with a value that satisfies the inequality |X| <= 1.

Class

Elemental function

Result Type and Attributes

Same as X.

Result Value

Examples

ACOS (1.0) has the value 0.0.


Specific Name Argument Type Result Type Pass As Arg?
ACOS default real default real yes
DACOS double precision real double precision real yes
QACOS (1) REAL(16) REAL(16) yes
QARCOS (1) REAL(16) REAL(16) yes

Notes:

  1. IBM Extension.

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