[sage-devel] Re: behavior of log for nonpositive integers

2009-08-31 Thread kcrisman
On Aug 28, 8:18 pm, Golam Mortuza Hossain wrote: > Hi, > > On Fri, Aug 28, 2009 at 11:02 AM, kcrisman wrote: > > > I'm working on #6388, > > Thanks for taking the effort on this bug. > > > sage: a = Integer(-1) > > sage: a.log() > > ValueError about input being negative > > sage: log(-1) > > Sa

[sage-devel] Re: behavior of log for nonpositive integers

2009-08-28 Thread Golam Mortuza Hossain
Hi, On Fri, Aug 28, 2009 at 11:02 AM, kcrisman wrote: > > I'm working on #6388, Thanks for taking the effort on this bug. > sage: a = Integer(-1) > sage: a.log() > ValueError about input being negative > sage: log(-1) > Same ValueError, since preparser turns -1 into Integer(-1) > sage: log(SR