Formula:2111

Digital Library of Mathematical Functions ID 4.25.E4

${\displaystyle{\displaystyle\operatorname{arctan}z=\cfrac{z}{1+\cfrac{z^{2}}{3+\cfrac{4z^{2}}{5+\cfrac{9z^{2}}{7+\cfrac{16z^{2}}{9+}}}}}\cdots,}}$

Symbols List

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

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