[sage-devel] Re: Bug in integration on a Riemann surface

2024-02-23 Thread Linden Disney
As a note, I have now raised an issue https://github.com/sagemath/sage/issues/37438 about this on github. On Monday, January 22, 2024 at 5:57:50 PM UTC Nils Bruin wrote: > More importantly, the error also doesn't occur with > > S = Curve(f).riemann_surface(integration_method="heuristic") > > so

[sage-devel] Re: Bug in integration on a Riemann surface

2024-01-22 Thread Nils Bruin
More importantly, the error also doesn't occur with S = Curve(f).riemann_surface(integration_method="heuristic") so it's indeed in the newer code. The fact that swapping x,z makes the error disappear is also unsurprising: entirely different path integrals are executed. As an indication for wha

[sage-devel] Re: bug in integration

2012-04-18 Thread Nils Bruin
On Apr 17, 6:26 pm, kcrisman wrote: > The 4.8 stuff is probably due to a previous Maxima. > > In the 5.0 betas, I suspect this particular one is related to things > like > > http://trac.sagemath.org/sage_trac/ticket/8321 Some of the comments on that ticket also point out that in sage there doesn'

[sage-devel] Re: bug in integration

2012-04-17 Thread kcrisman
The 4.8 stuff is probably due to a previous Maxima. In the 5.0 betas, I suspect this particular one is related to things like http://trac.sagemath.org/sage_trac/ticket/8321 GSL is hiccuping, I guess. See also sage: f.nintegral(x,-5,5) ValueError: Maxima (via quadpack) cannot compute t