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7.3.18  ζ function

The ζ function is defined by

  ζ(x)=
+∞
n=1
 
1
nx

for x>1, and by its meromorphic continuation for x<1.

The Zeta command computes the ζ function.

Examples

Zeta(2)
     
π2
6
          
Zeta(4)
     
π4
90
          

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