johnnyb_61820

6 ms·

1.
by johnnyb_61820 1mo ago
Indeed! Glad I have fans :) I also have an electronics book "Electronics for Beginners" plus a few others.
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by johnnyb_61820 1mo ago
Here's an interesting paper on the topic for epsilon-delta proofs: https://arxiv.org/pdf/1701.05187 Also see Table 2 of this older paper for limit thinking in general: https://u.math.biu.ac.il/~kat
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by johnnyb_61820 1mo ago
I wrote an article about Berkeley's critique here: https://mindmatters.ai/2021/03/the-needless-complexity-of-mo... I actually quite enjoy Berkeley. I wish he had framed his critique slightly differently, but
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by johnnyb_61820 1mo ago
So you are saying that disconnecting calculus from algebra improves the average student's calculus ability? What planet are you from? We spend a lot of time and effort teaching kids how to do algebra, and how to manipulate equat
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by johnnyb_61820 1mo ago
I hope you check out my book, "Calculus from the Ground Up": https://www.amazon.com/Calculus-Ground-Jonathan-Laine-Bartle...
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by johnnyb_61820 1mo ago
Not really. I teach high school calculus to homeschool co-ops. My earliest students are just a few years out of college. I usually only teach 2-10 students per class, and I don't think I managed to get any school to adopt my "C
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by johnnyb_61820 1mo ago
I'm curious if you've taught calculus? Do your students remember limits by the end of calculus? Most studies show that students DO NOT RETAIN limit concepts (ESPECIALLY epsilon-delta ones). It is used as a crutch and then l
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by johnnyb_61820 1mo ago
On the second derivative side, a fuller treatment (including applying the approach to partial differentials) is given in the paper "Total and Partial Differentials as Algebraically Manipulable Entities". https://arxiv.o
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by johnnyb_61820 1mo ago
Thanks for the shout-out! I teach calculus to homeschool co-op students regularly, and I got tired of the existing books on the market (I used to teach from Saxon Calculus) so I wrote my own, "Calculus from the Ground Up". This
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by johnnyb_61820 2y ago
What I did in my book to keep everything algebraic but not introduce weird notation is just set the derivative equal to a variable. So, say m = dy/dx. Then, the second derivative is just dm/dx. The advantage to the revised notat
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by johnnyb_61820 2y ago
Indeed! I'm glad you enjoyed the book! I hope you wrote it a nice Amazon review :)
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by johnnyb_61820 2y ago
If you are going to use infinitesimals, though, it requires some additional doing for notation. The standard notation for higher-order derivatives (and partial derivatives) needs to be modified in order for them to work (but they do work
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by johnnyb_61820 3y ago
Much of the calls for AI legislation have been based on fear of the technology. Instead, we should establish rational policy goals for AI regulation that align with the technology's usage, not our fears about the future.
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by johnnyb_61820 3y ago
DNA is a lot more like an FPGA than a traditional programming language. Basically, everything is wrapped in a while(true) that has conditionals as to whether or not it engages. Promoter sequences are the condition statements, and transc
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by johnnyb_61820 4y ago
The documentary covered some important ground but leaned too heavily on the idea that Tesla is responsible for customer abuse of their platform.
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by johnnyb_61820 4y ago
For those looking for more general reasons why "No Code" works for some tasks but doesn't scale (i.e., to present to a boss), I did an article series on No Code: https://mindmatters.ai/t/no-code-software&
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by johnnyb_61820 5y ago
Makes you wonder who you can trust out there.
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by johnnyb_61820 5y ago
Social media companies only work when they attract a mass of people, who could have been spending their time elsewhere or on another site. Does this imply a responsibility on the part of the social media company to their early users who we
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by johnnyb_61820 5y ago
Big publishing houses like to throw the term "predatory journals" around a lot, but a look at their own publishing practices raises questions.
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by johnnyb_61820 5y ago
I thought you all would be interested in my latest book, "Learn to Program with Assembly". This is a 64-bit rewrite of my previous assembly language book, "Programming from the Ground Up."
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by johnnyb_61820 5y ago
Why the "universal algorithm" is the modern equivalent of the perpetual motion machine, and researchers don't seem willing to give up on it despite its theoretical problems.
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by johnnyb_61820 5y ago
While the concept of "code debt" is a useful metaphor, many people take its implications too seriously. This article looks at the biggest misapplications of the "code debt" concept, and how sometimes code debt is like ge
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by johnnyb_61820 5y ago
Looks like they are aiming for level 4 and still using safety drivers, though.
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by johnnyb_61820 5y ago
Here, it is shown that blockchains aren't intrinsically required for NFTs, and, in fact, create additional problems for them.
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by johnnyb_61820 5y ago
The new NXP NTAG 424 DNA chips are pretty amazing. Additionally, I've been working on an open-source library for writing to the chips with iOS here: https://github.com/johnnyb/nfc-dna-kit
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by johnnyb_61820 5y ago
Many of the recent "developments" in technology are actually delivering the opposite of what technology is supposed to offer.
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by johnnyb_61820 6y ago
This is an article on some of the reasons why computer programming should be taught to everyone at a high school level.
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by johnnyb_61820 6y ago
Walks through the problems inherent with attempting to make something "no code".
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by johnnyb_61820 6y ago
A short history of number systems that got added to mathematics (and math education), as well as the proposal for having hyperreal numbers be the next addition to the curriculum.
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Can an 18th Century Statistician Help Us Think More Clearly? (Bayes' Rule)(mindmatters.ai)
1 points by johnnyb_61820 6y ago|0 comments

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