midpoint coordinate calculator between two points in three-dimensional space
formula:
two points in space p1 (x1, y1, z1), p2 (x2, y2, z2), the coordinates of the midpoint p are [(x1+x2)/2, (y1+y2)/2, (z1+z2)/2
formula:
two points in space p1 (x1, y1, z1), p2 (x2, y2, z2), the coordinates of the midpoint p are [(x1+x2)/2, (y1+y2)/2, (z1+z2)/2