MWE: sage: A = -17737878703644595885728157881856/2195118875780412735240966796875 sage: B = 76386743039924534000525642916220282669332545616695170155741184/4818546878807463076444691815463494370294881403446197509765625 sage: E = EllipticCurve([A,B]) sage: lcalc.analytic_rank(E)
This produces "*** overflow in t_INT-->t_INT assignment.Segmentation fault (core dumped), followed by "TypeError: unable to convert '' to an integer". It looks like line 385 of sage/lfunctions/lcalc.py is returning the empty string, i.e., 'rank-compute' is failing to compute, probably because of the overflow. This elliptic curve comes from Elkies and Klagsbrun's recent paper (https://arxiv.org/abs/2003.00077); it is the rank 20 curve with torsion Z/2Z. Other info: OS: Ubuntu 18.04.2 LTS, 64bit Sage installation: Downloaded and unzipped the top link here: http://www.mirrorservice.org/sites/www.sagemath.org/linux/64bit/index.html SageMath version 9.0, release date 2020-01-01 Using Python 3.7.3 -- 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/15743c40-6434-477e-ac27-12ff73af5286%40googlegroups.com.
