CALL TANH Routine

Returns the hyperbolic tangent

Category: Mathematical

Syntax

CALL TANH ( argument <, argument,... >);

Arguments

argument

• is numeric.

• Restriction: The CALL TANH routine only accepts variables as valid arguments. Do not use a constant or a SAS expression, because the CALL routine is unable to update these arguments.

Details

The subroutine TANH replaces each argument by the tanh of that argument. For example x _j is replaced by

If any argument contains a missing value, then CALL TANH returns missing values for all the arguments.

Examples

The following SAS statements produce these results:

SAS Statements	Results
x=0.5; y=-0.5; call tanh(x,y); put x= y=;	x=0.4621171573 y=-0.462117157

See Also

Function:

• 'TANH Function' on page 854