Bug#506833: Scilab fails VERY SIMPLE computation.

[Sylvestre Ledru]

merge 499565 506833
thanks

Actually, it is not a Scilab bug but a gfortran
See: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37863
Upcoming version of Scilab (5.0.3) contains a workaround for this bug.

Btw, packages are available here:
http://www.scilab.org/team/sylvestre.ledru/
until it is uploaded in Debian.

Sylvestre



Le mardi 25 novembre 2008 à 13:55 +0900, KOBAYASHI Hiroyuki a écrit :
> Package: scilab
> Version: 4.1.2-6
> 
> 
> Scilab mistakes computation of (a certain type of?) product of 2 matrices.
> Here is an example:
> 
> --> A = [3 1 4; 1 5 9; 2 6 5];
> 
> --> inv(A)*A
>  ans  =
>  
>     2.  - 8.327D-17  - 1.804D-16  
>     0.    2.           0.         
>     0.    0.           1.         
>  
> 
> In Windows, it results with an identity matrix successfully.
> 
> I am using a several Debian GNU/Linux IA32 PCs.  Their kernels are
> 2.6.26.1-1-686 or higher and libc6s are 2.7-16.
> 
> 
> 
> -- System Information:
> Debian Release: lenny/sid
>   APT prefers testing
>   APT policy: (500, 'testing'), (500, 'stable')
> Architecture: i386 (i686)
> 
> Kernel: Linux 2.6.26-1-686 (SMP w/2 CPU cores)
> Locale: LANG=ja_JP.EUC-JP, LC_CTYPE=ja_JP.EUC-JP (charmap=EUC-JP)
> Shell: /bin/sh linked to /bin/bash
> 
> Versions of packages scilab depends on:
> ii  scilab-bin                    4.1.2-6    Matrix-based scientific software p
> ii  tk8.4 [wish]                  8.4.19-2   Tk toolkit for Tcl and X11, v8.4 -
> 
> Versions of packages scilab recommends:
> ii  scilab-doc                    4.1.2-6    Matrix-based scientific software p
> 
> Versions of packages scilab suggests:
> pn  gfortran                      <none>     (no description available)
> 
> -- no debconf information
> ----
> KOBAYASHI, Hiroyuki
> 
> 
>