• schmidtster@lemmy.world
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        2 年前

        It’s in the video.

        A circle with a radius of 2 and a circle with a radius of 3 would be 5 rotations.

        • protist@mander.xyz
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          2 年前

          First you said add the radii together, then you gave an example subtracting them, but either way this is incorrect. You divide the larger radius by the smaller radius and add 1

        • bisby@lemmy.world
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          2 年前

          Its not even remotely what you said. Its A/B+1 or A/B-1 for an interior loop.

          edit: I didn’t need to be this aggressive. It’s VAGUELY what you said. its (A+B)/B. You have missed the /B part… which is A/B + 1.

          in the example you gave, for radius 2 and 3… it would be 3/2 + 1 or 2.5. Not 5 (off by a factor of 2 because /B)

          • schmidtster@lemmy.world
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            2 年前

            They explain multiple ways to do it in the video. A circle with a radius of 2 and a circle with a radius of 3 would be 5.

            • bisby@lemmy.world
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              2 年前

              No they don’t

              N is the ratio of the circles and its just +1 or -1 depending on outer or inner.