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 what is likely happening, on line 2211: delta_z and rho_z seem to be indistinguishable, forcing Delta and M to be +infinity. Path splitting should definitely happen here. I think delta_z should have been smaller than rho_z when you reach this point, so I think the code should have bailed before. On Monday 22 January 2024 at 03:03:20 UTC-8 Linden Disney wrote: > In Sage 9.8 I ran the following code: > > R.<z,x> = QQ[] > f = x*(1^5+z^5) + (x*1*z)^2 - x^4*1*z - 2*1^3*z^3 > S = Curve(f).riemann_surface() > S.riemann_matrix() > > and got a ValueError occurring inside rigorous_line_integral. This error > doesn't occur if instead for the first line I used "R.<x,z> = QQ[]" > (swapping the order of x and z). Can anyone replicate the error? If so > please let me know and I will open a ticket about this and have a look, as > I wrote the rigorous_line_integral code. > > -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/d9cdbad8-f6bb-4eb1-bfd7-696d876d2d28n%40googlegroups.com.
