This applet illustrates the distance between 2 points in three-dimensions. The two points A and B can be moved in the 3D view.[br]The left view shows the coordinates of the points as an (x,y,z) array. The distance in each coordinate direction is then shown as [math]\Delta x,\Delta y,\Delta z[/math]. Then the length is calculated.[br]An additional value of the unit vector which indicates the direction of the vector by dividing the coordinate distances by the total length.[br][br]Two check boxes allow you to display the coordinate path from A to B and the unit vector in the three dimensional view.