> HOW DOES HE KNOW "points(i - 1) + points(i)) / 2" is middle point? I don't mean to be rude, but maybe he studied maths in elementary school. It has nothing to do with vb.net, it's got to do with geometry and the math behind it. Look up in Wikipedia about vectors, cartesian coordinate system, etc.
On Apr 28, 3:43 pm, Grandtour <[email protected]> wrote: > I found a good gh VB example on wiki. In his VB , when he want to find > the middle point of two points. he use "points(i - 1) + points(i)) / > 2" > > I want to know , why this means finding the middle point of two > points???? And how does he know this???? In VB examples, I usually > find such kind of transcendent thing, how can I learn them? > > In fact, I am a new learner and want to learn VB for gh. BUT can not > find a good way to learn. I have read the 2nd primer, did not get any > point. And then I want to recite some VB example , just like the way I > learn foreign language, Is that a good way?
