franz on Wed, 09 Mar 2005 23:36:08 +0100


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bnfnarrow 

hi,

I never used bnfnarrow before so I don't know whether
I'm doing something stupid:

 f=x^3-x^2-234*x+729:nf=bnfinit(f):bnfnarrow(nf)
 ***   non invertible matrix in gauss

The same command works with f = x^3 + x^2 - 54*x - 169,
but not with x^3 + x^2 - 4*x + 1 (***   incorrect type in mattodiagonal)

franz


    GP/PARI CALCULATOR Version 2.0.17 (beta)
  Windows NT ix86 (ix86 kernel) 32-bit version