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drossbucket's profile
Lucy Keer
Lucy Keer
Lucy Keer
@drossbucket

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Lucy Keer

@drossbucket

Some crackpot. Interested in 'mathematical intuition', whatever that is.

Bristol, UK
drossbucket.wordpress.com
Joined June 2017

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    1. David Chapman‏ @Meaningness 12 Feb 2018
      • Report Tweet

      “Too Much Calculus” by Gilbert Strang, who taught me linear algebra in the late Victorian era and is still at it. Linear algebra is what we use for everything in the real world. Calculus is elegant, but you’ll never actually have to solve an integral. http://www-math.mit.edu/~gs/papers/essay.pdf …

      18 replies 49 retweets 208 likes
      Show this thread
    2. Andrew Ruiz‏ @then_there_was 12 Feb 2018
      • Report Tweet
      Replying to @Meaningness

      Spotify uses a lot of linear algebra to determine the Discover Weekly playlist recommendations that everyone seems to love.

      1 reply 0 retweets 5 likes
    3. David Chapman‏ @Meaningness 12 Feb 2018
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      Replying to @then_there_was

      Yup. Also the foundation of the Google search algorithm, most machine learning methods, most mechanical engineering software, …

      1 reply 0 retweets 7 likes
    4. bowser‏ @browserdotsys 12 Feb 2018
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      Replying to @Meaningness @then_there_was

      Hmm, computing gradients needs differential calculus though, no? (Though auto-diff makes things pretty easy nowadays)

      1 reply 0 retweets 0 likes
    5. David Chapman‏ @Meaningness 12 Feb 2018
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      Replying to @browserdotsys @then_there_was

      In practice, that is done numerically, not as a symbolic derivative.

      1 reply 0 retweets 5 likes
    6. Lucy Keer‏ @drossbucket 12 Feb 2018
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      Replying to @Meaningness @browserdotsys @then_there_was

      yeah, but the things you do with it often require calculus intuition, right? Numerical integration of ODEs, root finding? sorry, calculus is so pretty that I'm easily trolled by this :)

      1 reply 0 retweets 0 likes
    7. David Chapman‏ @Meaningness 12 Feb 2018
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      Replying to @drossbucket @browserdotsys @then_there_was

      Didn’t mean to troll (unusable for me); I guess I was just unclear. The concepts are imperative and when I’m World Dictator will be forced on everyone continuously from age 8.

      4 replies 0 retweets 1 like
      Lucy Keer‏ @drossbucket 12 Feb 2018
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      Replying to @Meaningness @browserdotsys @then_there_was

      Yep, reading your other clarification helps. I actually love 19th century style formula churning too but I realise that's a minority taste!

      10:28 PM - 12 Feb 2018
      1 reply 0 retweets 0 likes
        1. New conversation
        1. David Chapman‏ @Meaningness 12 Feb 2018
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          Replying to @drossbucket @browserdotsys @then_there_was

          Nobody *likes* numerical analysis (afaik). But it’s the reality of contemporary applied math

          1 reply 0 retweets 0 likes
        2. Lucy Keer‏ @drossbucket 12 Feb 2018
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          Replying to @Meaningness @browserdotsys @then_there_was

          Some of my friends genuinely love numerics! But I definitely didn't, and did the most 19th century PhD I could manage.

          0 replies 0 retweets 0 likes
          3. End of conversation

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