Transcript:

Reading GPRC: /Users/daniel/.gprc ...Done.

                  GP/PARI CALCULATOR Version 2.7.5 (released)
          i386 running darwin (x86-64/GMP-6.0.0 kernel) 64-bit version
        compiled: Mar  3 2016, Apple LLVM version 7.0.2 (clang-700.1.81)
                            threading engine: single
                 (readline v6.3 enabled, extended help enabled)

                     Copyright (C) 2000-2015 The PARI Group

PARI/GP is free software, covered by the GNU General Public License, and comes
WITHOUT ANY WARRANTY WHATSOEVER.

Type ? for help, \q to quit.
Type ?12 for how to get moral (and possibly technical) support.

parisize = 8000000, primelimit = 500000
? k = bnfinit(y^2 - 5);
time = 2 ms.
? modul = bnrinit(k,[1,[1,1]]);
?
? bnrdisc(modul)
%3 = [2, 0, -5]