Formula:2185

Digital Library of Mathematical Functions ID 4.31.E2

${\displaystyle{\displaystyle\lim_{z\to 0}\frac{\tanh z}{z}=1,}}$

Symbols List

• ${\displaystyle{\displaystyle\tanh\NVar{z}}}$: hyperbolic tangent function
• ${\displaystyle{\displaystyle z}}$: complex variable
 

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