| Description: | Produces the arccosine of X. | ||
| Class: | Elemental function; Generic | ||
| Arguments: | X 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 | REAL(16) | REAL(16) |
Examples
ACOS (0.68032123) has the value .8225955.