ivan_ah

94 ms·

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by ivan_ah 12y ago
> a comical idea to try to market a book toward students these days I agree with you generally, but if you compare with the current math textbooks (that students are usually forced to buy) you will concede there is a lot of room for im
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by ivan_ah 12y ago
> Looking back, that experience taught me about how important modeling is to pedagogy. Very good point! This is the strongest "pitch" for why one should learn math: the modelling superpowers one will acquire. Every function f
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by ivan_ah 12y ago
In "physics land" Richard Feynman is famous for his explanatory power, e.g. We tried to take advantage of Richard's talent for clarity by getting him to critique the technical presentations that we made in our product intro
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by ivan_ah 12y ago
Ideas no, but I sometimes drag snippets of text to the desktop too and they get saved as `.textClipping` files. I think ideas are folder-like structures so I usually create a folder to store code/links/pdfs/clippings specif
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by ivan_ah 12y ago
I have totally given up hope on classifying all the interesting things I find on the web each day, so I use an uncategorized save all strategy. I save all opened and downloaded files (mostly PDFs) to ~/Desktop/ and I also book
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by ivan_ah 12y ago
Thx for pointing this out. I updated the comment. It seems O(log n) is as low as it will go, still I find it to be a neat (theoretical) trick.
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by ivan_ah 12y ago
How about computing any Fibonacci number in constant time? This can be done using the eigendecomposition trick for computing powers of matrices: http://minireference.com/static/excerpts/fibonacci_in_consta...
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by ivan_ah 12y ago
NO BULLSHIT guide to MATH and PHYSICS --- a calculus and mechanics textbook for adults; also covers high school math. disclaimer: I'm the author
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by ivan_ah 12y ago
There should be a project euler for web devs. What better way to learn js than to do 1-day (1-hour?) projects with a clear and specific focus on one concept or one browser API? Example of first week complexity: make a choose-your-own-advent
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Books vs. apps(minireference.com)
1 points by ivan_ah 12y ago|0 comments
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by ivan_ah 12y ago
* ) the eigenvectors are [1,1] and [1,-1], via http://live.sympy.org/?evaluate=X%20%3D%20Matrix(%5B%5B0%2C1... * ) The standard basis B_s = {[1,0],[0,1]} and the Hadamard basis B_h={[1,1],[1,-1]} are a mutually unbi
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by ivan_ah 12y ago
I see a lot of material for an E&M and Waves course... I also liked the Faraday suit... it seems like something out of a medieval context.
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by ivan_ah 12y ago
I see. Then node might be a good tech to look into. It's very good for network stuff. Here is an example of a `solr` proxy written by my friend: https://github.com/dergachev/solr-security-proxy/blob/maste
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by ivan_ah 12y ago
You probably know about django-rest-framework, which I find to be absolutely awesome. I wouldn't look further --- sooo much batteries the API will practically write itself ;)
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by ivan_ah 12y ago
I'd be interested to see more questions from the test, but from the examples given I'd say s/algebra test/problem solving test/ is in order. In that light, the findings become less surprising---still interesting th
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by ivan_ah 12y ago
One comment and one book plug. Apart from the aspects of privilege, acts of drunkenness, and social schmoozing, I think what is special about the "college years" is these are some of the rare moments where young people have a chan
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by ivan_ah 12y ago
If may add a 6th reason, the low-level nature of C code gives you a very realistic model of computation---you see how long operations take because you often have to do them manually. High level languages like python hide this complexity fro
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by ivan_ah 12y ago
will need the clockwise spiral rule to parse this: http://c-faq.com/decl/spiral.anderson.html
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by ivan_ah 12y ago
Looks like a proprietary version of: https://github.com/softcover/softcover
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by ivan_ah 12y ago
No BS guide to liner algebra --- I'm the author --- in writing about this subject, I had to (re)learn all the details. It is truly a beautiful subject with lots of applications. I recommend anyone interested in math to look into linear
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by ivan_ah 12y ago
HN readers in the Montreal area will have a chance to listen to the talk in person at the McGill colloquium: Scaling Deep Learning , Wednesday, December 10th, 2:00PM-3:00 PM at the McGill University M1 amphitheater of the Strathcona buil
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by ivan_ah 12y ago
Yeah the other day was my first day with Java and Eclipse and I was close to pulling my hair out (coming from python and vim). Ultimately it's just a different set of batteries but the depth/weight of the stack seems insane---the
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by ivan_ah 12y ago
What about OpenUI5 for business apps: https://openui5.hana.ondemand.com/#content/Controls/index.ht... From my initial tests, it's very clean MVC (a bit verbose). Also the deploy story is not too good... (fron
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by ivan_ah 12y ago
I recommend you start with a review of all the topics from high school math which are not clear to you, e.g. functions, solving equations, geometry, and algebra. This may take some time, but it's totally worth it. Building your math kn
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by ivan_ah 12y ago
@bobsadinook Thx for the plug!
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by ivan_ah 12y ago
I've since switched my research focus to machine learning (look up latent Dirichlet allocation , very cool stuff). I find a lot of parallels between the two fields: prob. theory, matrices, uncertainty, ... I'm still following qua
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by ivan_ah 12y ago
+1! I find the whole notion of "typical set" to be absolutely amazing. I would like to share with you a few pages from the intro to my thesis which cover Shannon's channel coding theorem. There are some nice TiKZ illustration
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by ivan_ah 12y ago
The site design is very good. It is light and gets to the point, namely, the pricing: http://www.sultantutoring.com/pricing.html That seems crazy expensive. Who's is the intended audience for this? I certainly don&#x27
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by ivan_ah 12y ago
Hi kalid. That's awesome to hear you're grown the business to 3k/mo. Clearly the model of free content online + sales of curated book-length content works. Imagine now if a bunch of people with tutoring experience in chemistr
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by ivan_ah 12y ago
I've been in contact with some tutors (and tutoring agencies), but the book is kind of competition to them. For $29 students get a lot of content, and will need less tutoring. I'm thinking a good partner would be university depart

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