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    I love these posts! They make me mad :) and that means I’m learning something new. For example, in this post I read “i,j and k are the square roots of -1” and I became angry like the country bumpkin being taken for a ride by his city cousin. Are you pulling my leg? Are you making fun of me?

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      Haha, yes! Quaternions are a lot of fun, um, if strange new algebras are a thing you find fun. I loved the quote:

      There is still something in the system which gravels me. I have not yet any clear views as to the extent to which we are at liberty arbitrarily to create imaginaries, and to endow them with supernatural properties

      … because it’s nice to know the original inventors had the same first reaction I did. :)

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      Similar to https://lobste.rs/s/zzimov/

      Perhaps both should be aggregated with http://math.ucr.edu/home/baez/numbers/

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        Wow, this is super neat!