Function ArcTanh(x)

# ArcTanh

ArcTanh(
x             ! (input) numerical expression
)


## Arguments

x

A scalar numerical expression in the range $$(-1,1)$$.

## Return Value

The ArcTanh function returns the inverse hyperbolic tangent of x.

Note

• A run-time error results if x is outside the range $$(-1,1)$$.

• The function ArcTanh can be used in constraints of nonlinear mathematical programs.

The functions ArcCosh, ArcSinh, Tanh. Arithmetic functions are discussed in full detail in Arithmetic Functions of the Language Reference.