To get half the width of the camera why would you not use "size.extent"?

Questions & Answers
1

In the tutorial the guy uses this code to calculate half the width (extend) of what Camera can see in world coordinates:

"float horizontalCamExtend = cam.orthographicSize * Screen.width/Screen.height;"

My question is, does the code above give the coordinates to the midpoint of the box’s(i.e Cameras views) edge?

And why not use size.extent?

Sorry If my question is a bit kryptic.

2

‘cam.orthographicSize’ is a single floating point value, not a Bounds or a Rect, so there is no size or extent. It defines 1/2 of the height seen by the camera. Changing this value changes how much the camera sees. So he is multiplying that by the ratio of screen width to height to get the half width.