ivan_ah

9 ms·

1.
by ivan_ah 5y ago
> [...] integration and differentiation be taught before matrix operations [...] When worded this way, it sure doesn't sound like something worth doing. Matrix algebra (computational rules for matrix-vector and matrix-matrix product
2.
by ivan_ah 5y ago
There is a nice "opinion piece" by Strang that echoes what you're saying here: Too Much Calculus (and not enough LA) https://siags.siam.org/siagla/articles/Strang2001.pdf
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by ivan_ah 5y ago
In this title, the modifier "a Lot" modifies "Writing" not "Easier". As in "write a lot of stuff, in an easy way" and not "make writing much less difficult".
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by ivan_ah 5y ago
Wow this is really well done. It's like a visual-algebraic approach... I've never seen this before. I like how the author sets up a "grammar of matrix multiplications," and then reuses the same patterns in the rest of th
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by ivan_ah 5y ago
One cool feature of Visual Studio Code notebooks is you can set VSCode as the default "opener" for .ipynb files, which allows you to open notebooks using double click. I still run jupterlab for my "main" environment, but
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by ivan_ah 5y ago
The closest thing to RMarkdown is MyST — the native .md format for the jupyterbook project: https://jupyterbook.org/content/myst.html I've switched to that instead of notebooks, and loving the text-based life... g
7.
by ivan_ah 5y ago
Nice article by Tim Hopper that compares all the diffirent options for plotting in Python. Each figure is presented with code in 5 or 6 different libraries. Like rosetta stone for Python plotting. Another similar site in this vein is https
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Python Plotting for Exploratory Data Analysis(pythonplot.com)
2 points by ivan_ah 5y ago|1 comments
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by ivan_ah 5y ago
The Fitbod app is good for getting some exercise based on muscle groups: you put in the equipment you have (e.g. bench + resistance bands) and then it suggests exercise programmes for you based on this equipment and your availability (e.g.
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by ivan_ah 5y ago
Journal paper: https://ieeexplore.ieee.org/document/8630851 PDF: https://dspace.mit.edu/bitstream/handle/1721.1/129702/1802.0... Also conf paper: https://ieeexplore.ieee.
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by ivan_ah 5y ago
meta comment: the website you're viewing when you click that link is generated using Jupyter Book , which is like the best thing ever https://jupyterbook.org/intro.html Imagine all the beauty of .Rmd (easily generate b
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by ivan_ah 5y ago
> On my toilet is a stack of dual-language books; [...] What are those? Is this a book that has the same text in two languages side by side? I'd be very interested to see an example of such a book because I recently translated the o
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by ivan_ah 5y ago
I recently wrote a blog post about "learning loops" which is the process of learning more when motivated by the progress you are making: https://minireference.com/blog/learning-loops/ This is how most au
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by ivan_ah 5y ago
Here is a 1.5h supercut of all the scenes with Omar Little: https://www.youtube.com/watch?v=QP2Yx9XTgFI Truly an epic character, and an epic actor as well!
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by ivan_ah 5y ago
sample output: https://minireference.com/static/tmp/constructive_feedback.m... which was obtained from https://productivityhub.org/2019/04/19/how-to-deliver-constr... via https:&#
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by ivan_ah 5y ago
Say you want to have a few hacker news articles lined up that you want to read, but you also want to lift weights, cook some food, or clean your house. How do you choose what to do?? Or maybe you don't need to choose! Copy-paste the te
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Show HN: Turn any text file into an audiobook(gist.github.com)
1 points by ivan_ah 5y ago|3 comments
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by ivan_ah 5y ago
So what do y'all do now that sci-hub.se doesn't retrieve new articles anymore? Could someone with a university account GET this and post it somewhere please? Seems very interesting.
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by ivan_ah 5y ago
You're definitely not the videos on an sdcard, and even the text-only (nopic) ZIM file is 43G, see the line "Wikipedia (English) en 2021-01 all nopic" on this page https://wiki.kiwix.org/wiki/Content_in_
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by ivan_ah 5y ago
To clarify, the "box" is any UNIX computer (very well suited for Raspberry PI devices, since the wifi can act as a hotspot), and the "internet" consists of all the best FOSS apps and open content that get served from loc
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by ivan_ah 5y ago
IIAB is just scripts for automating installing other software, so it doesn't include content — you download the content separately based on the app you need. For StackOverflow content, the best way to get it offline is through the Kiwi
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by ivan_ah 5y ago
> Does this solve real people's actual problems? I have seen a IIAB device used in a school in a remote area (one IIAB for several clients on the WLAN, old PCs with wired network, phones, and tablets). The IIAB scripts, https:&#x2F
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by ivan_ah 5y ago
Yeah I remember being very surprised at the undergraduate level of math/phys at Bristol (I was there for one year on a student exchange). My classmates (2nd year and 3rd year) had trouble with basic calculus, because they didn't l
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by ivan_ah 5y ago
Another good video about technology in education in general. It's old but, insights are timeless. [ 1995 Technology In Education hearing featuring Seymour Papert and Alan Kay hearing on education ] https://www.youtube.com&#x
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by ivan_ah 5y ago
There is a very cool "explain the exception traceback" package for Python: https://github.com/aroberge/friendly See this video for explainer and demo: https://www.youtube.com/watch?v=TmLnX7op
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by ivan_ah 5y ago
Here are some concept maps you could you could print for her: https://minireference.com/static/conceptmaps/math_and_physic... https://minireference.com/static/conceptmaps/linear_algebra_
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by ivan_ah 5y ago
Check out the intro-to-calculus section in the preview PDF of my book: https://minireference.com/static/excerpts/noBSmathphys_v5_pr... It's just a few pages and you'll know the basic ideas. Learning calc
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by ivan_ah 5y ago
I guess the closest thing to a quantum hello world would be a simple quantum circuit—each line represents a qubit register, and various types of gates operate on the qubits. To see quantum circuits that do something useful, check out the &q
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by ivan_ah 5y ago
You're correct. The key thing to understand is when people talk about "internet" and "connectivity" in the context of LoRa, we're talking about very small packets (like a few bytes), transmitted using "chi
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by ivan_ah 5y ago
I'm guessing your device simply doesn't have a LoRa radio (I think they started added that only in newer devices).

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