What do you mean by "(array non-vector) if it important their orientation"?
"Bruno Luong" <firstname.lastname@example.org> wrote in message <email@example.com>... > "Yuji Zhang" <firstname.lastname@example.org> wrote in message <email@example.com>... > > Hi~ I've a question - maybe trivial. > > > > why you wanna use cumtrapz(x',y') instead of cumtrapz(x,y) ? they're the same right? > > > > They are the same if x,y are vectors. > > Otherwise (array non-vector) if it important their orientation. > > Bruno