On Sep 19, 12:50 am, "William Stein" <[EMAIL PROTECTED]> wrote:
> > sage: FormalSum([(1,1/4),(1,-1/5)])
> > -1/5 + 1/4
> > sage: FormalSum([(1,1/4),(1,-1/5)]) == 1/4 - 1/5
> > False
>
> That could be considered a bug and fixed. I would
> be fine with something better, i.e., comparis
On Sep 18, 1:01 am, "John Cremona" <[EMAIL PROTECTED]> wrote:
> 2008/9/18 John H Palmieri <[EMAIL PROTECTED]>:
> > Right, I saw that in the source code. How about we change it, in this
> > case, from
>
> > return isinstance(x, FractionField_generic)
>
> > to
>
> > return isinstance(x, (Fract
On Thu, Sep 18, 2008 at 12:12 PM, John H Palmieri
<[EMAIL PROTECTED]> wrote:
>
>
>
> On Sep 18, 9:51 am, "William Stein" <[EMAIL PROTECTED]> wrote:
>> On Thu, Sep 18, 2008 at 9:49 AM, John Cremona <[EMAIL PROTECTED]> wrote:
>>
>> > This looks a bit like an additive version of what we already do wi
On Sep 18, 9:51 am, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Thu, Sep 18, 2008 at 9:49 AM, John Cremona <[EMAIL PROTECTED]> wrote:
>
> > This looks a bit like an additive version of what we already do with
> > factorizations. I wonder if you could clever use the factorization
> > class
On Thu, Sep 18, 2008 at 9:49 AM, John Cremona <[EMAIL PROTECTED]> wrote:
>
> This looks a bit like an additive version of what we already do with
> factorizations. I wonder if you could clever use the factorization
> class for it?
It's possible somebody might find this useful:
sage: FormalSum
This looks a bit like an additive version of what we already do with
factorizations. I wonder if you could clever use the factorization
class for it?
John
PS I didn't really mean to suggest that you were stuck on the
mathematics of this!
2008/9/18 John H Palmieri <[EMAIL PROTECTED]>:
>
> On S
On Sep 18, 7:41 am, John H Palmieri <[EMAIL PROTECTED]> wrote:
>
> It wasn't the mathematics I was looking for, but how to output the
> answer once I find it. If Sage computes that 1/20 = 1/4 - 1/5, how do
> I get it to print the expression 1/4 - 1/5 without simplifying it to
> 1/20? For example,
On Sep 18, 1:01 am, "John Cremona" <[EMAIL PROTECTED]> wrote:
> 2008/9/18 John H Palmieri <[EMAIL PROTECTED]>:
>
> > On Sep 17, 9:09 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> >> On Wed, Sep 17, 2008 at 8:59 PM, John H Palmieri <[EMAIL PROTECTED]> wrote:
>
> >> > Along the same lines, partia
On Sep 18, 5:31 am, Burcin Erocal <[EMAIL PROTECTED]> wrote:
> On Wed, 17 Sep 2008 21:48:37 -0700 (PDT)
> John H Palmieri <[EMAIL PROTECTED]> wrote:
>
> > On Sep 17, 9:09 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> > > On Wed, Sep 17, 2008 at 8:59 PM, John H Palmieri
> > > <[EMAIL PROTECTED]>
On Wed, 17 Sep 2008 21:48:37 -0700 (PDT)
John H Palmieri <[EMAIL PROTECTED]> wrote:
>
> On Sep 17, 9:09 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> > On Wed, Sep 17, 2008 at 8:59 PM, John H Palmieri
> > <[EMAIL PROTECTED]> wrote:
> >
> > > Along the same lines, partial fraction decompositi
2008/9/18 John H Palmieri <[EMAIL PROTECTED]>:
>
> On Sep 17, 9:09 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
>> On Wed, Sep 17, 2008 at 8:59 PM, John H Palmieri <[EMAIL PROTECTED]> wrote:
>>
>> > sage: is_FractionField(FractionField(ZZ))
>> > False
>>
>> > Oy. This seems to be intentional: th
On Sep 17, 9:09 pm, "William Stein" <[EMAIL PROTECTED]> wrote:
> On Wed, Sep 17, 2008 at 8:59 PM, John H Palmieri <[EMAIL PROTECTED]> wrote:
>
> > sage: is_FractionField(FractionField(ZZ))
> > False
>
> > Oy. This seems to be intentional: there is a doctest very similar to
> > this. It doesn't see
On Wed, Sep 17, 2008 at 8:59 PM, John H Palmieri <[EMAIL PROTECTED]> wrote:
>
> sage: is_FractionField(FractionField(ZZ))
> False
>
> Oy. This seems to be intentional: there is a doctest very similar to
> this. It doesn't seem right, though. How hard would it be to change?
> Is it worth it?
In mo
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