Real Area Hyperbolic Tangent of x over a in Logarithm Form

Theorem

 * $\artanh \dfrac x a = \dfrac 1 2 \map \ln {\dfrac {a + x} {a - x} }$

Also see

 * $\arsinh \dfrac x a$ in Logarithm Form


 * $\arcosh \dfrac x a$ in Logarithm Form


 * $\arcoth \dfrac x a$ in Logarithm Form


 * $\arsech \dfrac x a$ in Logarithm Form


 * $\arcsch \dfrac x a$ in Logarithm Form