fx-82MS fx-82EX fx-9860GII TI-83
tanh-1
On a TI calculator you can calculate the inverse hyperbolic tangent via the CATALOG as
CATALOG ⎵
2nd 0 ►tanh⁻¹ ENTER
Example 1
To calculate tanh-1(0.3) = 0.30951…°
CATALOG 2nd 0 ►tanh⁻¹ ENTER tanh⁻¹( · 3 ENTER tanh⁻¹(.3 0.3095194042