ARTANH
Syntax |
ARTANH (x) |
Location |
Hyper |
The function ARTANH returns the value which must be passed to TANH to give the specified result, so:
TANH ( ARTANH ( x )) = ARTANH ( TANH ( x )) = x
ARTANH(x) could be replaced by: LN((1+x) / (1-x)) / 2
CROSS-REFERENCE