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when toggle format what by license comment
Sep 15, 2013 at 9:28 comment added André Henriques Unlike Gerald's suggestion, the following variant seems to work. First: equally spaced points with difference 1 going from −1 to 1. Then: equally spaced points with difference 1/2 going from −2 to 2. Then: equally spaced points with difference 1/3 going from −3 to 3. Then: equally spaced points with difference 1/4 going from −4 to 4 (always from left to right).
Sep 14, 2013 at 22:53 comment added Gerry Myerson This doesn't actually answer the question of whether there are any in the literature.
Sep 14, 2013 at 14:52 comment added fedja Except that you also need to specify the order in which you add them within each bunch. If you just go from left to right, you are in big trouble... :-).
Sep 14, 2013 at 13:27 history answered Gerald Edgar CC BY-SA 3.0