OFFSET
2,2
FORMULA
Zeta(s) = Sum(1/n^s, n=1, 2, ..inf).
EXAMPLE
12.730416..
MATHEMATICA
RealDigits[Zeta[Zeta[4]], 10, 120][[1]] (* Harvey P. Dale, Apr 02 2018 *)
PROG
(PARI) zeta2(v, n) = \ v = value, n=number of places { local(y, x, l, z1); z1=zeta(v); l=length(Str(floor(z1))); \ length of the integer part y=Vec(Str(z1)); for(x=1, l, \ to the left of decimal point print1(y[x]", "); ); for(x=l+2, n, print1(y[x]", ") \ to the right of the decimal point ) }
CROSSREFS
KEYWORD
AUTHOR
Cino Hilliard, Sep 30 2005
STATUS
approved