On Sun, Jul 12, 2009 at 9:12 AM, Neal<[email protected]> wrote: > > Hi everyone, > > I thought I'd share the following: > > sage: assume(x>0) > sage: solve([x^2-1],x) > [x == -1, x == 1] > > Shouldn't it not give me the negative solution? Also: > > sage: assume(x == 1) > sage: bool(x == 1) > False
We have been receiving many reports about problems with assume(). Possibly related threads are: http://groups.google.com/group/sage-support/browse_thread/thread/baff0ea16acf049a/5bd6e591a1ea106d http://groups.google.com/group/sage-support/browse_thread/thread/e959dd09ae737556/24fc75b2c4ea09db http://groups.google.com/group/sage-support/browse_thread/thread/1f7159d23e20f547/b8cd93dac11ef3f5 http://groups.google.com/group/sage-devel/browse_thread/thread/1e180a4fb2d42308/7ccf04f57070bd93 http://groups.google.com/group/sage-devel/browse_thread/thread/cfbdcc9959ef5deb/2c44be3709189e4b Perhaps the problem can be traced to Maxima's assume() function. -- Regards Minh Van Nguyen --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
