W dniu 2016-12-07 o 09:58, [email protected] pisze:
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
You want to find vector "dist", so that:
a + dist = b
then, subtracting 'a' from both sides of equation:
dist = b - a
verify:
a + dist = b ==> a + (b-a) = b ==> b=b
:)
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