Hi David,

On 2018-04-13, David Loeffler <d.a.loeff...@warwick.ac.uk> wrote:
> On 13 April 2018 at 12:25, Sanketh <mendasank...@gmail.com> wrote:
>> This is probably obvious but why is type='gap' not standard for Galois
>> groups?
> Because Pari is *vastly* faster. E.g. see this example, where Pari beats
> Gap by a factor of 100:
> sage: K.<a> = NumberField(x^5 - x - 1)
> sage: time _=K.galois_group(type='pari')
> CPU times: user 8.26 ms, sys: 3.65 ms, total: 11.9 ms
> Wall time: 53.5 ms
> sage: time _=K.galois_group(type='gap')
> CPU times: user 212 ms, sys: 149 ms, total: 361 ms
> Wall time: 5.38 s

Might be interesting to offer libgap as one option. After all, it avoids
the time to start Gap.

Best regards,

You received this message because you are subscribed to the Google Groups 
"sage-devel" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to sage-devel+unsubscr...@googlegroups.com.
To post to this group, send email to sage-devel@googlegroups.com.
Visit this group at https://groups.google.com/group/sage-devel.
For more options, visit https://groups.google.com/d/optout.

Reply via email to