ATANH

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

Syntax

result = ATANH (x)

x
(Input) Must be of type real, where | x | 1.

Results

The result type is the same as x. The value lies in the range -1.0 to 1.0.

Specific Name Argument Type Result Type
ATANH REAL(4) REAL(4)
DATANH REAL(8) REAL(8)
QATANH REAL(16) REAL(16)

Examples

ATANH (-0.77) has the value -1.02033.

ATANH (0.5) has the value 0.549306.