• Valmond@lemmy.world
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    13 hours ago

    Computer programming books … Lol we don’t print them any more, they’d be obsolete before hitting the shelves.

  • NigelFrobisher@aussie.zone
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    11 hours ago

    Science is validated by the new information replacing the old. Al-Khwarizmi worked out numbers so we don’t have to,

  • kamen@lemmy.world
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    14 hours ago

    Mathematics teacher: That textbook was written thousands of years ago, and it is still as useful and relevant as ever, but I want you to buy this one I co-authored instead for the mere sum of $120, otherwise you won’t pass.

      • mothersprotege@lemm.ee
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        2 hours ago

        I took an environmental science class in college, and the professor was a former president of Shell. As part of the curriculum, we had to read his book, Why we Hate the Oil Companies. Predictably, it’s a corporate non-apologia, which—hilariously—completely avoids engaging with why we actually hate the oil companies.

        • FireIced@lemmy.super.ynh.fr
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          59 minutes ago

          Did people stand up to call the bullshit? I guess in this kind of situation you feel threatened that if you talk, you get penalized heavily

      • kamen@lemmy.world
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        7 hours ago

        I admit I exaggerated a bit. It hasn’t happened to me, but I’ve had some teachers that strongly suggested buying their textbooks and frowned if you didn’t.

      • SpraynardKruger@lemm.ee
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        8 hours ago

        Not the original commenter, but I briefly had one professor in college that did that (their book was $50, though). It was an elective course for me, fortunately. I was able to switch for a different class that fit the same requirement without being forced to buy a book the professor wrote.

    • Michal@programming.dev
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      7 hours ago

      Since you made the claim, the onus of proof is on you. Go on, it’ll be interesting to see your proof.

    • Dicska@lemmy.world
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      10 hours ago

      Nah mate, it was already in existence by last Tuesday afternoon and there is no way for you to disprove it.

  • Gladaed@feddit.org
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    17 hours ago

    Wrong for physics. Models to describe reality don’t magically become wrong just because a model with better predictive power is discovered. Most old models are special cases of newer ones.

    • InputZero@lemmy.world
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      15 hours ago

      Yeah, Newton wasn’t just a science bitch who is wrong, sometimes. His equations are the special case of General Relativity when acceleration is very low. Which is the world we live in.

  • nthavoc@lemmy.today
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    24 hours ago

    Oh that book is outdated. That’s the second edition, you need the third addition to complete the one math problem I am basing your entire grade on for the course.

    • mlg@lemmy.world
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      9 hours ago

      That was probably inspired by the USA’s crappy national curriculum system of forcing kids to learn and use the lattice method which is 100% some sort of scam to make it look like math illiterate children are passing class and failing upwards.

      I mean seriously, we’ve been using base 10 arab system for a millenia, but you’re trying to tell me the department of education came up with a better method of drawing a damn chi square matrix abomination that makes even the two millenia old roman numeral system look good in comparison.

    • ayyy@sh.itjust.works
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      19 hours ago

      My favorite way to connect people with academia is pointing out how recently zero was invented because even the most reluctant “I don’t know math” person understands zero these days.

      • ultrafastsloth@lemmy.world
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        18 hours ago

        Can you really understand zero? I mean, I get what it represents, but I still sometimes struggle to understand its usage…like, you can’t divide with zero thats for sure, but did you know you can divide a number with a really small number (like an infinitely small number) and you get a really large number (like infinitely large)? So, in that special space, if you suddenly replace “0” with a “number-so-close-to-zero-it-can-smell-it” feel free to divide and conquer, and get infinity.

        Oh, and sometimes, if you feel like math is letting you down, remember, you can always use positive and negative zeroes, so your math-thing can now work!

  • Thorry84@feddit.nl
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    1 day ago

    Web development: Oh, that textbook is obsolete. It was written last year before Angular v18 was released.

    • Gladaed@feddit.org
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      17 hours ago

      Wrong. Good look fooling around without algebra for years. New methods make old maths easy.

        • Gladaed@feddit.org
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          9 hours ago

          No sarcasm. Being able to use numbers, integrals and derivatives makes a huge amount of maths easy. Exponential function and it’s relatives are so handy. (Sin, Cos, Tan, Cot, log).

          The Greeks didn’t have any of that to do their math.

      • Schadrach@lemmy.sdf.org
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        12 hours ago

        …and even newer methods make old math insanely complicated, but much more generalized. Like building definitions for things like numbers and basic arithmetic using set theory.

      • Schadrach@lemmy.sdf.org
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        12 hours ago

        To be fair, the first 100 pages of that was justifying the set theory definition for what numbers are. The following two hundred papers are proving that a process of iterative counting we call addition functions in a consistent and useful way, given the set theory way of defining numbers. Once we get to that point, 1+1 is easy. Then we get to start talking more deeply about iteration as a process, leading to considering iterating addition (aka multiplication), iterating multiplication (aka exponents), etc. But that stuff is for the next thousand pages.

        Remember, 0 is defined as the amount of things in the empty set {}. 1 is defined as the amount of things in a set containing the empty set {{}}. Each following natural number is defined as the amount of things in a set containing each of the previous nonnegative integers. So for example 2 is the amount of things in a set containing the empty set and a set containing the empty set {{}, {{}}}, 3 is the amount of things in a set containing the empty set, a set containing the empty set, and a set containing the empty set and a set containing the empty set {{}, {{}}, {{}, {{}}}}, etc. All natural numbers are just counting increasingly recursively labeled nothing. Welcome to math.