[Scilab-users] Different results inside a function and in the console

[Federico Miyara]

Izabela,

It is difficult to tell what's happening without seeing the function code.

However, it appears as if variable p_x were cleared or redefined to have 
only 5 components prior to the assignment of two of its elements (those 
with indices 1 and 5) when executing the formula.

What I would do is to create a new function removing all function code 
not related to the problem, trying to track what happens to p_x before 
applying the formula.

Regards,

Federico Miyara




On 31/01/2019 15:06, Izabela Wójcik-Grząba wrote:
> Hello,
>
> I have a strange problem with simple calculations which are done 
> inside a function. I will put here exact data and formula:
>
> p_x=
>
>    0.
>    0.
>    0.
>    0.
>    0.
>    0.
>
>  p_x_pocz=
>
>    0.
>    0.
>    0.
>    0.
>    0.
>    0.
>
>  reakcje=
>
>    1.   1.03   2.1   -2.1    1.   2.
>    4.   0.92   2.45  -2.45   5.   2.
>
>  luzne_nr=
>
>    1.
>    4.
>
>  u=
>
>    4.6
>    3.6
>   -2.4
>   -4.4
>   -1.4
>
>  l_poziom=
>
>    5.1
>    4.56
>
> p_x(reakcje(:,5))=p_x_pocz(reakcje(:,5))+u(luzne_nr).*reakcje(:,2)./l_poziom; 
>
>
> When it is calculated inside the function I get a result:
>
> p_x=
>
>    0.93
>    0.
>    0.
>    0.
>   -0.89
>
> When I use the same data and formula in the Console I get a correct 
> result:
>
> p_x  =
>
>    0.93
>    0.
>    0.
>    0.
>   -0.89
>    0.
>
> To check the input values I displayed the input data before the 
> formula in the function with disp, and then I used these values for 
> calculations in the Console.
>
> Has andybody any idea what can be wrong? Am I missing something?
>
> Thanks for any help.
>
> Kind regards,
> Iza
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