Jacques Gélinas on Wed, 21 Nov 2018 18:09:28 +0100


[Date Prev] [Date Next] [Thread Prev] [Thread Next] [Date Index] [Thread Index]

RE: Learning with GP: Taylor coefficients of xi(s) - Gram (Pari 2.12)


1) This much simpler code is now working :

\\ Xipari(t) = real(subst(Pol(xis(1/2+x+O(x^NX))),x,I*t));

Xipari(t) = Pol( Xi(t)+O(t^NX), t );     \\ Pari 2.12 needed

2) The localprecision has to be more than 30 to check Gram's value of zeta(1/2).

{ localprec(36); [
  abs( 1 - zetah/zeta(1/2) ) < 2E-30,
  ......................................................

Jacques Gélinas