Intel® Fortran Compiler 16.0 User and Reference Guide
Elemental Intrinsic Function (Generic): Produces the arccosine of x.
result = ACOS (x)
x |
(Input) Must be of type real. The | x | must be less than or equal to 1. |
The result type and kind 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 1 |
REAL(4) |
REAL(4) |
DACOS 1 |
REAL(8) |
REAL(8) |
QACOS2 |
REAL(16) |
REAL(16) |
|
1 The setting of compiler options specifying real size can affect ACOS and DACOS. 2Or QARCOS. |
||
ACOS (0.68032123) has the value .8225955.