calculate the distance between 2 points

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Majid Al-Sirafi 2012-3-22

评论： jaafar rashid 2023-11-11

hi every one i want to calculate the distance between 2 points(p1 & p2), so which of the following equation choose to do that:-

d = (x(p1)-x(p2))^2+(y(p1)-y(p2))^2;

d = sqrt((x(p1)-x(p2))^2+(y(p1)-y(p2))^2);

or any one from the above equations

thanks

Grzegorz Knor 2012-3-22

The common use distance formula is the second one:

d = sqrt((x(p1)-x(p2))^2+(y(p1)-y(p2))^2);

Daniel Shub 2012-3-25

@majid, but in what direction?

Majid Al-Sirafi 2012-3-25

one point to the left and another to the right

Jan 2012-3-22

You can simply try it, if you are not familiar with the Euclidean Norm (hint: use this term to ask Google or WikiPedia):

Set the variables to coordinates, whichj have a known distance, e.g. [0,0] and [2,0].

jaafar rashid 2023-11-11

are they norme and ecludian same??

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