"Bruno Luong" <firstname.lastname@example.org> wrote in message <email@example.com>... > "M Antola" <firstname.lastname@example.org> wrote in message <email@example.com>... > > > In theoretical physics at least, one means with \delta(x), where x is a vector, the product \delta(x_1)\delta(x_2)\delta(x_3) .. and so on. > > OK > > >So the result is a scalar. > > This statement does not make sense. A distribution is NOT a scalar. > > Bruno
I think the biggest mistake is to even mention the words "function" and "value" when dealing with someone who does not understand the basic concept of distribution theory.