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In MATLAB, how to compute the Euclidean distance between two points?

With MATLAB, the straightforward way to compute the distance between two points is to compute the norm of the vector defined by the two points. You can use the MATLAB norm(v) function that returns the Euclidean norm of vector v :

>> P1 = [1,2];
>> P2 = [2,4];
>> norm (P1 - P2)

ans =

    2.2361

This also works with 3D or even n-D points.

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