I know the A-series is more common, but I sometimes prefer the B-series. It’s nice if, for example, you’re looking for something between A4 and A5 (i.e. B5).

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  • apollo440@lemmy.world
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    1 year ago

    It’s sqrt(2) for all formats. As you may know, that means you can fold it in half and still have an aspect ratio of sqrt(2).