Js - 0.0 to 1.0

And that I knew when I see in the school, that for computer language, isn't general but majoritary because have the random, but for everything but for the random, 0.0 to 1.0 means for the computer porcetagem, is that computer use 70% for you but for it is 0.7, many times the things have value but not unit, at the time I even saw about 3D enviroment and there for the computer the room is one and 400 is like 400x1, so the computer will multiply everything for the one, if is 56 is 56 multiply 1 and not axactly cm, but you can import unit for the 3D to you compare with your reality, a chair in a computer could have 80cm or 80 meter and look of the same size in the screen, you apply units isn't need is only a reality outside the computer and not inside. Rute Bezerra de Menezes Gondim