Re: Question on finding a Riemann Zeta function zero for high values of s

Second attempt at a patch, the first was wrong. Replace the computation of p1 by
 p1 = gsub(gmul(pmd, mulcxI(gsqr(zn))), gmul(s, glog(zn, prec)));
 p1 = gmul(gexp(p1, prec), gmul(aleps, gadd(x, ix)));
 
This at least gives the right result for the zero at height 10^11, and does not crash at 10^21.
Best,
 
Henri