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Euclidean distance


golub

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Hi,
I can't do almost anything...

Write a function that calculates the Euclidean distance for points: eucl(q1,z1,r2,z2).
Calculate the distance of point pairs: (r1,z1), (r2,z2).

Date:

$r1=1; $z1=12; $r1=43; $z1=123;
$r1=3; $z1=112; $r1=43; $z1=54;

formula to the Euclidean distance: (r1,z1,r2,z2)=sqrt[(r1-z1)*(r1-z1) + (r2-z2)*(r2-z2)],
where sqrt = square root.

 

Can anyone help?

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