Formula:2271

Digital Library of Mathematical Functions ID 4.35.E21

${\displaystyle{\displaystyle\cosh\frac{z}{2}=\left(\frac{\cosh z+1}{2}\right)^{1/2},}}$

Symbols List

• ${\displaystyle{\displaystyle\cosh\NVar{z}}}$: hyperbolic cosine function
• ${\displaystyle{\displaystyle z}}$: complex variable
 

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