again on Nm, N.m and N m.

[Giovanni Legnani. University Of Brescia - Italy - Europeancommunity]

According to "manuale Colombo", the Italian bible of engineering which
reports a summary of the international agreement on units, the units
must be separeted by a blank, a centered dot or a slash. Blanks and
centered dots are equivalent!

so valid forms are

N m N.m m/s

but
0
0 Nm

is NOT a correct form.

(Here I used the normal dot '.' because the centered dot is not available
on computers.)

That is all.
I apologize for my earlier mistakes.

bye

Giovanni LEGNANI