“All the little bits”

  • Juki@lemmy.world
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    5 months ago

    I would’ve absolutely paid more attention in maths if the learning material was this utterly contemptuous of “ordinary mathematicians” haha

    also full Project Gutenberg text is here https://calculusmadeeasy.org/, thanks for sharing!

    • 5oap10116@lemmy.world
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      5 months ago

      I’m a chemical engineer and I now better understand calculus slightly better from this post. I did a whole lot of “okkayyy …let’s just stick to the process and wait for this whole thing to blow over”

      I know what they were asking me to do but I never really fully understood everything.

      • Liz@midwest.social
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        5 months ago

        okkayyy…let’s just stick to the process and wait for this whole thing to blow over

        This is such a classic engineer brain solution to the problem. It just warms my heart.

        • 5oap10116@lemmy.world
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          5 months ago

          When I started algebra in something like 5th grade I had a huge issue with f(x) and the best answer my teacher gave me was that “the equation is a function of x” and couldn’t explain it differently and I couldn’t get over the fact that we are not multiplying whatever f is by X. “If we’re going to set precedent with notation at least be fucking consistent” - 5th grade me probably

  • Solace_Firebird@mander.xyz
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    5 months ago

    I have finally discovered my niche content: math texts that are irreverent and also defiantly uncomplicated.

    • evasive_chimpanzee@lemmy.world
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      5 months ago

      Read “a mathematicians lament”, by Paul Lockhart. It was originally a short essay (25 pages you can find free online), but expanded into a book that I haven’t read yet.

      In a similar vein is Shape, by Jordan Ellenberg.

      • Solace_Firebird@mander.xyz
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        5 months ago

        I read a short paper called “Lockheart’s Lament”, but I didn’t realize he had expanded on it. I might have cried about that one. Thanks for the reccomendations!

  • Diplomjodler@lemmy.world
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    5 months ago

    I often find that I find mathematical concepts much easier to understand if they’re presented as Python code rather than math notation. Someone should write a book like that.

    • kshade@lemmy.world
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      5 months ago

      Algebraic notation breaks just about every rule programmers are taught about keeping their code human readable. For example:

      • Variable and function names should be descriptive
      • Don’t cram everything into one line
      • Break up large statements
      • Consistency is key
      • Don’t be fancy for fancy’s sake, don’t over-optimize (this is for learning, remember?)
      • Add in-line comments for lines that aren’t easily grasped
      • Be explicit where possible (it’s a convention to omit the multiplication operator when multiplying variables because variables are only one letter anyway…)

      And then we force kids to cram the whole stdlib (or rather its local bastardization) into their heads or at best give them intentionally bad (uncommented) documentation during exams while wondering why so many just don’t seem to get it, even resent it.

      • pseudo@jlai.lu
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        5 months ago

        You can’t except learning the science of abstraction by making it concrete. Exampled are not more than examples and if one field required abstract theory, it is indeed the mathematics.

    • sherlockholmez@lemmy.ml
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      5 months ago

      Heck yeah, the standard model.

      It’s a Lagrangian, so you can’t approach it directly with Newtonian mechanics.

      • dejected_warp_core@lemmy.world
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        5 months ago

        To be fair, a formula that foreboding should only be approached indirectly, no matter what you’re armed with. I recommend sneaking up behind it.

  • seaQueue@lemmy.world
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    5 months ago

    My intro to calculus came in the form of a battered copy of a 1979 historical calculus textbook by W.M. Priestley, it was significantly easier to understand than any of the usual intro to calculus textbooks that I’ve seen.

    https://link.springer.com/book/10.1007/978-1-4684-9349-8

    Worth tracking down a copy if you’re planning to learn calculus, mine saw me through undergrad calc handily.

  • Buddahriffic@lemmy.world
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    5 months ago

    I’ve always just thought of it as derivatives describe the rate of change and integrals the total of whatever it is that has been done.

    Like if we’re talking about an x that describes position in terms of t, time, dx/dt is the rate of change of position over change in time, or speed. Then ddx/dt is change in speed over change in time, or acceleration. And dddx/dt is rate of change in acceleration over change in time (iirc this is called jerk). And going the opposite way, integrating jerk gets acceleration, then speed, then back to position. But you lose information about the initial values for each along the way (eg speed doesn’t care that you started 10m away from the origin, so integrating speed will only tell you about the change in position due to speed).