John Jones on 28 Mar 2002 11:10:43 -0700


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

bug in bnfnarrow?


I have tried this in several versions of gp 2 and they all produce the
same error.



                    GP/PARI CALCULATOR Version 2.2.1 (alpha)
                i686 running linux (ix86 kernel) 32-bit version
                (readline v4.1 enabled, extended help available)

                       Copyright (C) 2000 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.

   realprecision = 28 significant digits
   seriesprecision = 16 significant terms
   format = g0.28

parisize = 4000000, primelimit = 500000
? 1 - 9*x + 14*x^2 + 28*x^3 - 7*x^4 - 12*x^5 + x^6 + x^7
%1 = x^7 + x^6 - 12*x^5 - 7*x^4 + 28*x^3 + 14*x^2 - 9*x + 1
? bnfnarrow(bnfinit(%))
  ***   non invertible matrix in gauss
?
 

                                 John Jones


-----------------------------------------------------------------
Department of Mathematics and Statistics  Office:  PSA 729
Arizona State University                  Phone:   (480) 965-3725
Tempe, AZ    85287-1804                   FAX:     (480) 965-8119
URL: http://math.la.asu.edu/~jj           e-mail:  JJ@asu.edu
-----------------------------------------------------------------