[sage-devel] Re: assume() seems to break integrate() in some cases

2020-07-27 Thread Nils Bruin
On Monday, July 27, 2020 at 4:55:39 PM UTC-7, rjf wrote: > > In Maxima it works just fine, > You should probably qualify that. Perhaps it works fine with the default settings that maxima uses, but there are combinations on settings that don't seem so unreasonable for which the failure can be ob

[sage-devel] Re: Using importhooks for "preparsing"

2020-07-27 Thread Matthias Koeppe
On Monday, July 27, 2020 at 8:56:48 PM UTC-7, Nils Bruin wrote: > > On Monday, July 27, 2020 at 11:43:44 AM UTC-7, Matthias Koeppe wrote: >> >> On Sunday, July 26, 2020 at 4:10:25 PM UTC-7, Nils Bruin wrote: >>> >>> With the adoption of Python 3 in Sage, we have access to a lot of more >>> recent

[sage-devel] Re: Using importhooks for "preparsing"

2020-07-27 Thread Nils Bruin
On Monday, July 27, 2020 at 11:43:44 AM UTC-7, Matthias Koeppe wrote: > > On Sunday, July 26, 2020 at 4:10:25 PM UTC-7, Nils Bruin wrote: >> >> With the adoption of Python 3 in Sage, we have access to a lot of more >> recent development in python. One of which is the new "import" machinery, >> wh

[sage-devel] Patchbot r640 fails with "disk full"

2020-07-27 Thread Samuel Lelievre
Patchbot r640 seems to be failing for lack of disk space: https://trac.sagemath.org/ticket/30230#comment:14 -- 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 s

[sage-devel] Re: assume() seems to break integrate() in some cases

2020-07-27 Thread rjf
In Maxima it works just fine, it doesn't seem to be a Maxima problem. Though assume(t,real) is meaningless, and the syntax for maxima would be integrate(t,t, 0, 4*a-a^2) not integrate(t,0,4*a-a^2). integrate doesn't care if the lower limit is less than the upper limit. On Thursday, July 23

[sage-devel] Re: Using importhooks for "preparsing"

2020-07-27 Thread Matthias Koeppe
On Sunday, July 26, 2020 at 4:10:25 PM UTC-7, Nils Bruin wrote: > > With the adoption of Python 3 in Sage, we have access to a lot of more > recent development in python. One of which is the new "import" machinery, > which makes hooking in particular processors a lot easier. [...] > +1. In parti

Re: [sage-devel] The PolynomialRing that isn't

2020-07-27 Thread Vincent Delecroix
A warning is likely to show up in a lot of place in the current source code, isn't it? Please consider integrating the recent flint implementation http://flintlib.org/sphinx/fmpz_mpoly.html http://flintlib.org/sphinx/fmpq_mpoly.html http://flintlib.org/sphinx/nmod_mpoly.html Having this interfa

[sage-devel] The PolynomialRing that isn't

2020-07-27 Thread Ricardo Buring
Dear sage-devel, I would like to drag up this old issue because it is a source of confusion and frustration for new users. The problem is that PolynomialRing uses (lib)Singular's ring without restricting the possible term orderings. Singular's ring is a polynomial ring _only if_ it is passed a