• Miller@lemmy.world
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      3 months ago

      My old statistics lecturer would write x-¹ as shorthand meaning everything that is not x, I thought it was in more common usage but perhaps not. I know it more generally means the reciprocal, he just expected you to know which he meant by context.

      • xep@discuss.online
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        3 months ago

        That is not a great notation for x-complement, considering unambiguous widely accepted notation already exists, such as x'