Spatial Distance
To measure the distance between two points in a 3-dimentional space.
The universe is 3-dimensional, the distance between any two point can be calculated as follows:
For distance d between points at x1, y1, z1 and x2, y2, z2.
d2 = (x1 - x2)2 + (y1 - y2)2 + (z1 - z2)2
Hence
d = [(x1 - x2)2 + (y1 - y2)2 + (z1 - z2)2]1/2
Updated: 02/03/2026