datatable.math.artanh()

datatable.math.

artanh

(

x

)

source

The inverse hyperbolic tangent of x.

This function satisfies the property that tanh(artanh(x)) == x. Alternatively, this function can also be computed as \(\tanh^{-1}(x) = \frac12\ln\frac{1+x}{1-x}\).

See also

• tanh() – hyperbolic tangent;