Functions and CALL Routines

ARTANH Function

Returns the inverse hyperbolic tangent.

Category:

Hyperbolic

Syntax
Arguments
Details
Examples
See Also

Syntax

ARTANH(x)

Arguments

x

specifies a numeric constant, variable, or expression.

Range:

-1 < x < 1

Details

The ARTANH function computes the inverse hyperbolic tangent. The ARTANH function is mathematically defined by the following equation, where -1 < x< 1:

[equation]

Examples

The following example computes the inverse hyperbolic tangent.

data _null_;
   x=artanh(0.5);
   put x=;
run;

SAS writes the following output to the log:

x=0.5493061443