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by jleader
5406 days ago
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Regarding point x, it's not that screen size is calculated on the diagonal; doubling the diagonal (and keeping the same aspect ratio) doubles the width and height as well. The key is that area is the square of any linear dimension (again, for fixed aspect ratio). If you double the diagonal, you quadruple the area. If you increase the diagonal from 7" to 9.7", you almost double the area (1.92x to be precise). |
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I assume you meant point y. Anyway, right you are! This is what I tried to express by saying "By the rules of Pythagoras" because I was lazy and didn't want to take the time to calculate it precisely. I also assumed most people here would understand the implications, but on reading your comment I realized they may not and what I visualize in my head is likely far different from what everyone else does. Thank you for making it much more clear and explicit for me!