[Scilab-users] {EXT} unexpected result

[Dang Ngoc Chan, Christophe]

Hello Paul,

> De : Carrico, Paul
> Envoyé : mercredi 22 mai 2019 09:51
>
> In the following code,
> I was thinking that the provided index was the one on the “global”
> matrix, but I was wrong ☺ […]
> a2 = find(B(i-1:$,1) < 1); disp(a2);

I would have made the same mistake (-:

Now if we look at the documentation
https://help.scilab.org/docs/6.0.2/en_US/extraction.html
we read "r=x(i,j) builds the matrix r such as […]"

and
https://help.scilab.org/docs/6.0.2/en_US/find.html
"If x is a boolean matrix, ii=find(x) returns […]"

so the behaviour seems quite logical.

But it might be a good idea to provide an example such as yours in the documentation, at least to preserve our injured self-esteem (we are not the only two who have been fooled).

Regards

--
Christophe Dang Ngoc Chan
Mechanical calculation engineer

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