Le 02/10/2018 à 18:37, Adelson Oliveira a écrit :
Hi,
In scilab 6.1, I've noticed that the array
[8.9:0.2:9.9] does contain 8.9 and 9.9,
but the array,
[-5.1:0.2:5.1]
does not contain the last element 5.1!
find([-5.1:0.2:5.1] == 5.1) = []
Why is that?
Isn't it a bug?
We have
--> a = -5.1:0.2:5.1;
--> delta = a($)+0.2-5.1
delta =
8.882D-16
--> delta/5.1/%eps
ans =
0.7843137
So, computing the next value leads to 5.1 /but with an excess/ within
the epsilon machine.
Because of this excess, this last value is not included in the output set.
I am wondering whether we could detect this kind of edge effects, and
manage them more softly.
Samuel
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