• technocrit@lemmy.dbzer0.com
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      11 hours ago

      Math terminology is so shitty sometimes.

      The names in the number hierarchy are one of my favorite examples: natural, integer. rational, real, complex/imaginary. WTF? These terms are all misleading and completely removed from the underlying mathematical concepts. It’s terrible for math education, etc.

      I would propose instead something like: counting numbers, negatives (?), fractions, number line, number plane… Or anything remotely equivalent, where the terms reflect the actual mathematics instead of some outdated, pseudo-scientific intuition.

      “These numbers are real and these numbers are imaginary.” - Math still in the 21st century. It’s embarrassing. Symptomatic of wider rot in math education.

    • chonglibloodsport@lemmy.world
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      1 day ago

      Physics and electrical engineering! Complex numbers are an elegant way to model reactive power, the key insight into developing power factor correction circuits which are a critical piece of electrical infrastructure without which our electrical grid would fail!

  • Major_Tsiom@fedia.io
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    1 day ago

    They aren’t imaginary, they just don’t mean anything. Not anything important anyway. It’s a measure of certain rich peoples’ rising or falling fortunes. They pick which group of rich people to represent in the number and that constantly changes.

    • Crankenstein@lemmy.world
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      9 hours ago

      Monetary value, which is what those numbers represent, is entirely imaginary. It doesn’t exist outside of social context, i.e. in our minds.