Re: [sage-devel] Re: Problem of reduction of rational functions

2018-04-27 Thread Vincent Delecroix
On 23/04/2018 19:35, Marc Mezzarobba wrote: John Cremona wrote: This is simpler than writing numerator and denominator as a rational times a primitive integral polynomial, though that is probably what users would prefer. And (at least in my limited experience), for rational fractions over

[sage-devel] Re: Problem of reduction of rational functions

2018-04-23 Thread Marc Mezzarobba
John Cremona wrote: > This is simpler than writing numerator and denominator as a rational > times a primitive integral polynomial, though that is probably what > users would prefer. And (at least in my limited experience), for rational fractions over general fraction fields (things like

[sage-devel] Re: Problem of reduction of rational functions

2018-04-23 Thread Marc Mezzarobba
Matthias Koeppe wrote: > This is discussed in https://trac.sagemath.org/ticket/16993 ...and https://trac.sagemath.org/ticket/16268 (needs review!). -- Marc -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop

[sage-devel] Re: Problem of reduction of rational functions

2018-04-16 Thread Matthias Koeppe
This is discussed in https://trac.sagemath.org/ticket/16993 On Sunday, April 15, 2018 at 9:39:36 PM UTC+2, dhr wrote: > > Hi > > Reduction of rational functions seems not to work in specific cases. > In the following output, > > === > sage: R.=QQ[] > sage: (2*t+2)/(2*t) > (2*t +