Hi folks, The following line seems to reset the sage interpreter (with n bigger than 98), which is very annoying as it is a trivial matrix inversion using numpy.
import numpy as np n = 98 lhs = np.eye( n ) rhs = np.ones( n ) np.linalg.solve(lhs,rhs) (then np is not defined anymore, nor n, lhs or rhs ) It looks like a problem in numpy compiled code. I am using latest release sage-4.4.4-linux-64bit-ubuntu_10.04_lts-x86_64-Linux on lucid lynx . It did work properly with version 4.4.2 of sage ( and on my system-wide numpy ). In the console, I get : 2010-07-09 00:26:31+0200 [HTTPChannel,4,127.0.0.1] Unhandled SIGSEGV: A segmentation fault occurred in Sage. 2010-07-09 00:26:31+0200 [HTTPChannel,4,127.0.0.1] This probably occurred because a *compiled* component 2010-07-09 00:26:31+0200 [HTTPChannel,4,127.0.0.1] of Sage has a bug in it (typically accessing invalid memory) 2010-07-09 00:26:31+0200 [HTTPChannel,4,127.0.0.1] or is not properly wrapped with _sig_on, _sig_off. 2010-07-09 00:26:31+0200 [HTTPChannel,4,127.0.0.1] You might want to run Sage under gdb with 'sage -gdb' to debug this. 2010-07-09 00:26:31+0200 [HTTPChannel,4,127.0.0.1] Sage will now terminate (sorry). Best, Pablo -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
