ATANH

Description: Returns the inverse hyperbolic tangent of a number. The inverse hyperbolic tangent is the value whose hyperbolic tangent is Number, so ATANH(TANH(Number)) equals Number.

Syntax: ATANH(Number)

• Number is any real number between 1 and -1.

• When used in an event analysis flowchart, Number must evaluate to a numerical value. It can include:

• Numerical values

• Standard operands (+, -, *, /)

• Predefined mathematical functions (exp, log, sin, etc.)

• Event analysis internal functions

• Event analysis resources

• References to any ReliaSoft Workbooks

Example:

• ATANH(-0.1) = -0.10034 [the inverse hyperbolic tangent of -0.1]