[Scilab-users] log10 doesn't support hyperarrays

[Stéphane Mottelet]

Hi Frederico,

You are right, we have to (and will) fix this before the release

S.

Le 21/01/2020 à 09:41, Federico Miyara a écrit :
>
> Dear all,
>
> I've noticed that log10 doesn't support hyperarrays, while log 
> (natural logrithm) does (even if the documantation in both cases says 
> they are applicable to vectors and matrices:
>
> a = rand(3,2,2);
> b = log(a)
> c = log10(a)
> d = log(a)/log(10)
>
> --> b = log(a)
>  b  =
>
> (:,:,1)
>
>   -0.6847401  -0.0808957
>   -1.051648   -0.0525378
>   -0.9483546  -1.06847
> (:,:,2)
>
>   -0.9781346  -0.6944493
>   -0.3091181  -1.3323448
>   -1.3410298  -0.6436786
>
> --> c = log10(a)
>  c  =
>
>   -0.2973788  -0.0351326
>   -0.4567249  -0.0228169
>   -0.4118652  -0.4640306
>
> --> d = log(a)/log(10)
>  d  =
>
> (:,:,1)
>
>   -0.2973788  -0.0351326
>   -0.4567249  -0.0228169
>   -0.4118652  -0.4640306
> (:,:,2)
>
>   -0.4247984  -0.3015955
>   -0.1342483  -0.57863
>   -0.5824019  -0.279546
>
> As can be seen, log10 is yielding just the first page.
>
> It's strange, since log10 can be easily obtained from log, but both 
> functions are primitives
>
> Regards,
>
> Federico Miyara
>
>
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-- 
Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet

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