“All the little bits”

  • rekabis@lemmy.ca
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    5 months ago

    Calculus was never an issue for me. I could do double-integral calculus in my head clear into my forties. I’ve just gotten rusty since then, likely with a spot of practice I could pull off that party trick again.

    No, the only part of math that ever struck fear into my heart was trigonometry. Sin, cos, tan, that kind of stuff. For some reason I have never been able to grok, on a fundamental level, the basics of trig. I understand things on a high/intellectual level, just not on an instinctual level.

    • captainlezbian@lemmy.world
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      5 months ago

      Wait what? It’s all triangles. We just know the ratios because of the way they are. I can arcsin my way through all my problems.

      Physics is what made Calc make sense. Trig is what made physics make sense.

        • captainlezbian@lemmy.world
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          5 months ago

          I oppose math cults because I’m a member of bean cults. Our orgies are better, it’s the health benefits of beans

    • 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.

  • Adderbox76@lemmy.ca
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    5 months ago

    but wouldn’t “the sum of all the little bits of x” just be… x? Like what the fuck Calculus?! Speak plainly.

    • UNY0N@lemmy.world
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      5 months ago

      Yes, that’s the whole point of calculus. It’s useful for finding x if you don’t have other easier ways to do so.

      Here’s an example of how dividing the area under a curve up into smaller and smaller bits helps to find a value for the area.

      • I Cast Fist@programming.dev
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        5 months ago

        I mean, the idea is simple enough to understand. The actual execution is what fucks idiots like me, especially when the exam is full of shit like integral sin(e ^ (x^2 * cos(e)) * tan(sqrt 5x)

        • frezik@midwest.social
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          5 months ago

          That’s been an argument among educators. You can teach the basic concepts of Calculus to a fourth grader. What makes it difficult is rigor, but we don’t necessarily need to teach rigor to fourth graders.

  • 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).

    • Clay_pidgin@sh.itjust.works
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      5 months ago

      That’s how I thought of it too. I really liked calculus; being able to measure another part of the graph was interesting to me.

  • PixelProf@lemmy.ca
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    5 months ago

    There was a lovely computer science book for kids I can’t remember the name of, and it was all about the evil jargon trying to prevent people from mastering the magical skills of programming and algorithms. I love these approaches. I grew up in an extremely non/anti-academic environment, and I learned to explain things in non-academic ways, and it’s really helped me as an intro lecturer.

    Jargon is the mind killer. Shorthands are for the people who have enough expertise to really feel the depths of that shorthand and use it to tickle the old familiar neurons they represent without needing to do the whole dance. It’s easy to forget that to a newcomer, the symbol is just a symbol.

    • RGB3x3@lemmy.world
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      5 months ago

      The most annoying thing about learning networking and security are all the acronyms! Sometimes it feels like certification tests are testing acronym memorization more than real concepts.

      • Khanzarate@lemmy.world
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        5 months ago

        Definitely are.

        In a way it makes sense because the industry loves its acronyms and you’ll be using them.

        On the other hand, I have the ability to search. I’m an IT professional, I will have a computer. Let me let the computer do the lookup. Its the old “you won’t have a calculator with you all the time” argument that was dated when my teachers told it to me.

    • modeler@lemmy.world
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      5 months ago

      I must not use jargon.

      Jargon is the mind-killer.

      Jargon is the little-death that brings total confusion. I will face the jargon. I will permit it to pass over me and through me. And when it has gone past I will turn the inner eye to see its path. Where the jargon has gone there will be clarity. Only sense will remain.

    • I Cast Fist@programming.dev
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      5 months ago

      Whenever people talk about evil jargons, or “anti-dummies” wording, the first thing that comes into my mind is lawspeak. You know, how fucking laws are worded, which are anything but obvious to people that only speak “peasant”. It’s worse than academic jargon because it’s something that is likely to be used against you.

      • PixelProf@lemmy.ca
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        5 months ago

        Yeah, I may be wrong but I think it usually comes down to a very specific kind of precision needed. It’s not meant to be hostile, I think, but meant to provide a domain-specific explanation clearly to those who need to interpret it in a specific way. In law, specific jargon infers very specific behaviour, so it’s meant to be precise in its own way (not a law major, can’t say for sure), but it can seem completely meaningless if you aren’t prepped for it.

        Same thing in other fields. I had a professor who was very pedantic about {braces} vs [brackets] vs (parentheses), and it seemed totally unnecessary to be so corrective in discussions, but when explaining where things went wrong with a student’s work it was vital to be able to quickly differentiate them in their work so they could review the right areas or understand things faster during a lecture later down the line.

        But that noise takes longer to teach through, so if it is important, it needs it’s own time to learn, and it will make it inaccessible to anyone who didn’t get that time to learn and digest 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.

    • gramie@lemmy.ca
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      5 months ago

      The online version can be found at https://calculusmadeeasy.org/

      35 years after graduating from engineering school, this book helped me finally understand why calculus works, instead of just learning how to mechanically apply it.

  • Transient Punk@sh.itjust.works
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    5 months ago

    I bought this book when I was taking calc based physics. I never thought I would laugh so much at a math book! Educational and hilarious!