still not fixed: [ maxima-Bugs-1867942 ] round doesn't evaluate 1.0b0

I think it should be ((equal lb ub) lb). I'll fix it. Sorry about that.

BW

maxima-bounces at math.utexas.edu wrote on 01/18/2008 11:10:37 AM:

> Hi,
> 
> I didn't find the bug 1867942 in the tracker anymore. Sorry to say, 
> but it's not fixed.
> 
> I loaded the latest CVS version including the line
>        ((eq lb ub) lb) ;; For floats that are integers, ....
> 
> (%i1) load("D:\\volker\\CVS\\maxima\\maxima\\src\\nummod.lisp");
> (%o1)             D:\volker\CVS\maxima\maxima\src\nummod.lisp
> (%i2) round(12345.b0);
> (%o2)                           round(1.2345b4)
> 
> Or did I something wrong?
> 
> Volker van Nek
> 
> 
> Am 10 Jan 2008 um 8:35 hat SourceForge.net geschrieben:
> 
> > Bugs item #1867942, was opened at 2008-01-09 15:22
> > Message generated for change (Comment added) made by willisbl
> > You can respond by visiting: 
> > https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1867942
> > &group_id=4933
> > 
> > Please note that this message will contain a full copy of the
> > comment thread,
> > including the initial issue submission, for this request,
> > not just the latest update.
> > Category: Lisp Core - Floating point
> > Group: None
> > >Status: Closed
> > >Resolution: Fixed
> > Priority: 5
> > Private: No
> > Submitted By: Volker van Nek (van_nek)
> > Assigned to: Barton Willis (willisbl)
> > Summary: round doesn't evaluate 1.0b0
> > 
> > Initial Comment:
> > round doesn't when the argument is a bigfloat with an integer number
> > value.
> > 
> > examples:
> > 
> > map(round, [1.b0, 1.1b1, 1.11b2, 10.b-1, 100.b-2]);
> > [round(1.0b0), round(1.1b1), round(1.11b2), round(1.0b0),
> > round(1.0b0)]
> > 
> > Volker van Nek
> > 
> > --------------------------------------------------------------------
> > --
> > 
> > >Comment By: Barton Willis (willisbl)
> > Date: 2008-01-10 10:35
> > 
> > Message:
> > Logged In: YES 
> > user_id=895922
> > Originator: NO
> > 
> > Yes, simp-round didn't handle the case where the floor and ceiling
> > of the
> > number is the same.
> > I fixed this and appened regression tests to rtest_round for this
> > bug.
> > 
> > --------------------------------------------------------------------
> > --
> > 
> > Comment By: Raymond Toy (rtoy)
> > Date: 2008-01-09 16:10
> > 
> > Message:
> > Logged In: YES 
> > user_id=28849
> > Originator: NO
> > 
> > This fails also for floats that are integers.
> > 
> > I think the problem is in simp-round which doesn't handle the case
> > where
> > the floor and ceiling of the number are the same.
> > 
> > --------------------------------------------------------------------
> > --
> > 
> > Comment By: Raymond Toy (rtoy)
> > Date: 2008-01-09 15:59
> > 
> > Message:
> > Logged In: YES 
> > user_id=28849
> > Originator: NO
> > 
> > This fails also for floats that are integers.
> > 
> > I think the problem is in simp-round which doesn't handle the case
> > where
> > the floor and ceiling of the number are the same.
> > 
> > --------------------------------------------------------------------
> > --
> > 
> > You can respond by visiting: 
> > https://sourceforge.net/tracker/?func=detail&atid=104933&aid=1867942
> > &group_id=4933
> 
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