Intel® Fortran Compiler 18.0 Developer Guide and Reference
Elemental Intrinsic Function (Generic): Produces the hyperbolic arccosine of x.
result = ACOSH (x)
x |
(Input) Must be of type real, where x must be greater than or equal to 1, or of type complex. |
The result type and kind are the same as x.
If the result is complex, the imaginary part is expressed in radians and lies in the range 0 <= AIMAG (ACOSH (x)) <= pi.
Specific Name |
Argument Type |
Result Type |
|---|---|---|
ACOSH 1 |
REAL(4) |
REAL(4) |
DACOSH 1 |
REAL(8) |
REAL(8) |
QACOSH |
REAL(16) |
REAL(16) |
1The setting of compiler options specifying real size can affect ACOSH and DACOSH. |
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ACOSH (1.0) has the value 0.0.
ACOSH (180.0) has the value 5.8861.