Finding distance between two points from 3D coordinates?

If I have two points in 3d, A = [1579.4 51.2 279]

B = [1674.4 86.7 249]

these are (x, y, z) coordinates in mm, What is the easiest way to compute the distance (mm) between these two points in matlab,

Thanks.

Answer 1

[Jan]

sqrt(sum((A - B) .^ 2))

or:

norm(A - B)

Answer 2

[Muhammd]

P1=[x,y,z] P2=[x1,y1,z1] D=norm(P1-P2)