Abolute value bug?

I don’t understand, maybe I’m wrong…
Anyway, when I try to get abs(-13.6e-6) I’ve got 0.00001 for result. Where are the 3.6e-6 left ?

Best regards,
Thanks.Weird.aia (1.5 KB)

You would get the same if you used the real number:

image

They are there, just not shown.
Proof:

Capture