Philippe Elbaz-Vincent on Wed, 24 Aug 2005 23:04:18 +0200

 Re: rnfinit error

```I am able to reproduce it on different versions

Version 2.2.10 (development CHANGES-1.1187)
amd64 running linux (x86-64/GMP-4.1.3 kernel) 64-bit version

Version 2.2.10 (alpha)
amd64 running linux (x86-64/GMP-4.1.4 kernel) 64-bit version

Version 2.2.10 (development CHANGES-1.1175)
i686 running linux (ix86 kernel) 32-bit version

but it works fine on

Version 2.2.10 (development CHANGES-1.1106)
amd64 running linux (x86-64 kernel) 64-bit version

and

Version 2.2.10 (development CHANGES-1.1169)
i686 running linux (ix86 kernel) 32-bit version

so apparently something between 1169 and 1175 (if it's not arch related) ?

hope it helps.
Cheers, Philippe.

On Wed, 24 Aug 2005, Igor Schein wrote:

```
```On Wed, Aug 24, 2005 at 03:22:32PM -0400, Mak Trifkovic wrote:
```
```I do the following:

K=bnfinit(a^4 - 3*a^2 + 71);

L=rnfinit(K,x^5 + Mod(a - 1, a^4 - 3*a^2 + 71)*x^4 + Mod(2/5*a^2 + 2/5,
a^4 - 3*a^2 + 71)*x^3 + Mod(2/5*a^2 - 3/5, a^4 - 3*a^2 + 71)*x^2 +
Mod(1/5*a^3 - 1/5*a^2 - 4/5*a + 19/5, a^4 - 3*a^2 + 71)*x + Mod(-1/5*a^2 +
a - 11/5, a^4 - 3*a^2 + 71))

and get the error message

*** rnfinit: reducible modulus in factornf.

What's wrong?  (both polynomials are irreducible)

Mak
```
```
Can you please provide output of \v?  I can't reproduce this problem
with either 2.1.5 or 2.2.10.

Igor

```
```
```