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Re: Calculation issue with octave (data unexpectedly go to zero at some
From: |
Ben Abbott |
Subject: |
Re: Calculation issue with octave (data unexpectedly go to zero at some point) |
Date: |
Thu, 27 Feb 2014 19:25:21 -0500 |
On Feb 27, 2014, at 7:21 PM, Dmitri A. Sergatskov <address@hidden> wrote:
> On Thu, Feb 27, 2014 at 6:13 PM, Brian Kaczynski <address@hidden> wrote:
> 2014-02-28 1:03 GMT+01:00 Dmitri A. Sergatskov <address@hidden>:
> It could be that there is a bug in mod:
>
> octave:20> mod(0.2, 0.2)
> ans = 0
> octave:21> mod(0.4, 0.2)
> ans = 0
> octave:22> mod(0.6, 0.2)
> ans = 0.20000 # ??????????????
>
> octave:23> mod(0.8, 0.2)
> ans = 0
>
>
> In general it seems like a really bad idea to call mod with non-integer
> arguments.
>
>
> I used to assume that at least X has to be integer in mod(X,Y).
> In any case it could be a matlab in-compatibility. I think it all stem from
>
> octave> fix(0.6/0.2)
> ans = 2
>
> I have a strong suspicion that Matlab returns 3 here.
>
> Dmitri.
I had the same expectation. However, when I tested Matlab it gave the same
result as Octave.
Ben
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), (continued)
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Przemek Klosowski, 2014/02/28
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), ghaverla, 2014/02/28
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Juan Pablo Carbajal, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Ozzy Lash, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Ozzy Lash, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Dmitri A. Sergatskov, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Brian Kaczynski, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Dmitri A. Sergatskov, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point),
Ben Abbott <=
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Dmitri A. Sergatskov, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Ben Abbott, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Dmitri A. Sergatskov, 2014/02/27
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Juan Pablo Carbajal, 2014/02/28
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Ozzy Lash, 2014/02/28
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Juan Pablo Carbajal, 2014/02/28
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Juan Pablo Carbajal, 2014/02/28
- Re: Calculation issue with octave (data unexpectedly go to zero at some point), Ozzy Lash, 2014/02/28