• jaybone@lemmy.zip
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    22 days ago

    lol 1-1, 2-2 etc.

    How do you get 1 + 2-1?

    You need to distribute that minus sign to all numbers in the sequence. You can’t leave off the first one.

    • prime_number_314159@lemmy.world
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      22 days ago

      He has a plus one, and a minus one, a plus two, and a minus two, and so on. This is analogous to how conditionally convergent series can be modified to give any finite (or infinite) sum merely by changing the order of the terms.