math arctanh for math

Returns the inverse of the hyperbolic tangent function.

Signature

> math arctanh

Input/output types:

input	output
list<number>	list<number>
number	number

Examples

Get the arctanh of 1

> 1 | math arctanh
inf

Tips: Command math arctanh was not included in the official binaries by default, you have to build it with --features=extra flag