Formula:2425

Digital Library of Mathematical Functions ID 4.39.E3

${\displaystyle{\displaystyle\operatorname{arctanh}z=\cfrac{z}{1-\cfrac{z^{2}}{3-\cfrac{4z^{2}}{5-\cfrac{9z^{2}}{7-\cdots}}}},}}$

Symbols List

• ${\displaystyle{\displaystyle\operatorname{arctanh}\NVar{z}}}$:
• ${\displaystyle{\displaystyle z}}$: complex variable
 

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