ACOS

Elemental Intrinsic Function (Generic): Produces the arccosine of x.

Syntax

result = ACOS (x)

x
(Input) 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 0 to pi.

Specific Name Argument Type Result Type
ACOS REAL(4) REAL(4)
DACOS REAL(8) REAL(8)
QACOS 1 REAL(16) REAL(16)
1 Or QARCOS.

Example

ACOS (0.68032123) has the value .8225955.