From: Mark Shore on
"Snow White" <gulesaman(a)gmail.com> wrote in message <hrc0uc$9s9$1(a)fred.mathworks.com>...
> Exactly! i knw a dot product is between vectors of the same length. i wanted to know is there a possibility of rearranging them such that this might be possible?
>

How? Let's say you had a 3x1 and a 6x1 vector. Which one of the 20 (unscrambled) permutations would be the correct one?

Some questions answer themselves upon a little reflection.