On Thu, 10 Jan 2002, Ray Seals wrote:
> I've been looking for either a perl script or module to help me
> calculate the distance between 2 coordinates. Does anyone have any
> ideas or scripts?
There is a simple vector algebra algorithm for this:
If you have two points, p and q
p(a, b)
q(c, d)
the distance between p and q is the square root of the sum of the squares
of the differences between corresponding components:
d(p, q) = sqrt( (a - c )**2 + (b - d)**2 )
This applies to points of N-dimensions:
p(a1, a2, ... aN)
q(b1, b2, ... bN)
d(p, q) = sqrt( (a1 - b1)**2 + (a2 - b2)**2 + ... (aN - bN)**2 )
-- Brett
http://www.chapelperilous.net/
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