Need to go the other way: vector from a to b is (b-a) {-3, 2, 4}
Best,
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On Wed, Dec 7, 2016 at 9:58 AM, <alessia.bec...@gmail.com> wrote:
> Hi,
>
> this maya be a dumb question. I basically have two points in space
> a(1,2,3) and b(-2,4,7) and i want to find out what values i need to add to
> the 'a' coordinates to get to the 'b' coordinates. If i subtract then it
> would give me (1-(-2)),(2-4),(3-7) = (3,-2,-4).
>
> but then if i add these difference values back on top of the 'a'
> coordinates i wont get (-2,4,7), i get (4,0,-1)
>
> this is probably a simple maths thing but im not clever :/
>
> any help would be great,
> Sam
>
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