| Description: | Computes an absolute value. | ||
| Class: | Elemental function; Generic | ||
| Arguments: | A must be of type integer, real, or complex. | ||
| Results: | If A is an integer or real value, the value of the result is |A|; if A is a complex value (X, Y), the result is the real value SQRT (X**2 + Y**2). | ||
| Specific Name | Argument Type | Result Type |
|---|---|---|
| INTEGER(1) | INTEGER(1) | |
| IIABS | INTEGER(2) | INTEGER(2) |
| IABS 1 | INTEGER(4) | INTEGER(4) |
| KIABS | INTEGER(8) | INTEGER(8) |
| ABS | REAL(4) | REAL(4) |
| DABS | REAL(8) | REAL(8) |
| QABS | REAL(16) | REAL(16) |
| CABS 2 | COMPLEX(4) | REAL(4) |
| CDABS 3 | COMPLEX(8) | REAL(8) |
| CQABS | COMPLEX(16) | REAL(16) |
|
1 Or JIABS. For compatibility with
older versions of Fortran, IABS can also be specified as a generic
function.
2 The setting of compiler options specifying real size can affect CABS. 3 This function can also be specified as ZABS. | ||
Examples
ABS (-7.4) has the value 7.4.
ABS ((6.0, 8.0)) has the value 10.0.