Given two coordinates in the usual x-y axes, let's suppose that they are denoted by (x1, y1) and (x2, y2), then the midpoint is simply the average of each of the x and y values:

Midpoint = ( (x1+x2)/2 , (y1+y2)/2 )


In higher dimensions, the idea is very similar. For example, in the plane Euclidean space, we have coordinates in x, y and z axes: let's denote two coordinates as
(x1, y1, z1) and (x2, y2, z2).

Then the midpoint is ( (x1+x2)/2 , (y1+y2)/2, (z1+z2)/2 ).