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mrcactu5

470 karma · joined December 5, 2012

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mrcactu5··on Calculus Made Easy (1914) [pdf]
i know this is supposed to be a beginner textbook, but his discussion of infinitesimal geometry uses an awful amount of Scheme Theory to justify.
mrcactu5··on Physicists demonstrate new way to violate local causality
a lot at stake this year with a discussion of the foundations.

Leonard Susskind, Adam R. Brown, Ying Zhao

Quantum Complexity and Negative Curvature https://arxiv.org/abs/1608.02612

The Second Law of Quantum Complexity https://arxiv.org/abs/1701.01107

mrcactu5··on 'Fight Inequality' Is a Poor Rallying Cry
a lot of these protests such as "Occupy Wall Street" or "Black Lives Matter" have the right idea, but they are not sharp enough to be meaningful. Know your audience.
mrcactu5··on Miniatures: Mathematical and Algorithmic Applications of Linear Algebra [pdf]
example 12, "Tiling a Rectangle by Squares" is rather unique; it was discussed in Stanislav Smirnov's Fields medal lecture in 2010

https://en.wikipedia.org/wiki/Squaring_the_square

In his lecture he puts the square tilings in a rather serious context (the theory of electrical networks)

https://arxiv.org/abs/1009.6077 ( Discrete Complex Analysis and Probability )

mrcactu5··on Princeton’s Ad-Blocker May Put an End to the Ad-Blocking Arms Race
HIV is kind of like that too, when they circumvented CRISPR. I hear the nearest cure is decades away. Hopefully they have solved ad-blocking.
mrcactu5··on Princeton’s Ad-Blocker May Put an End to the Ad-Blocking Arms Race
cases like these usually depend on who is making money in the event of a decision. business make money off advertisements, therefore it's free speech
mrcactu5··on A New Path to Equal-Angle Lines
whoa -- I didn't know geogebra could be put on the web
mrcactu5··on A Competitive Programmer's Handbook
i like this book because it has certain time and resource constraints in mind. that maybe a typical professional programmer does not have. but maybe someone from another subject can learn.
mrcactu5··on Machine Learning Gender and Racial Biases from Language
this NLP might be missing perceptions on parts of different groups of listeners. Different cultures may correlate language and race / gender differently
mrcactu5··on How real are real numbers? (2004)
i think it's no coincidence Godel's proof of uncountable reals, comes around the same time as Lebesgue integration. As mathematicians started exploring what the serious use of Fourier series
mrcactu5··on Show HN: LuaGB – A Gameboy emulator written in pure Lua
what will be your strategy for maintaining this library?
mrcactu5··on Living a Lie: We Deceive Ourselves to Better Deceive Others
Telling the truth can be costly. Overwhelmingly we massage the facts to get the point across without causing too much damage. Textbook simplify a complicated facts for students, that is not lying. Commercials aren't lying because they aren't saying anything with a basis in fact.

While the majority of statements are neither true nor false, maybe we can quantify if a statement is closer to one or the other.

mrcactu5··on Modafinil-Induced Changes in Functional Connectivity of Healthy Elderly Subjects
nope. I come from one of the world's producers of coffee, Puerto Rico. Starbucks give me a break. I've seen better stuff at in the grocery aisle.
mrcactu5··on Zi2zi: Master Chinese Calligraphy with Conditional Adversarial Networks
can this help people who are trying to learn Hanzi of any kind, not just calligraphy?
mrcactu5··on New York City bans employers from asking potential workers about past salary
i don't think the law will improve the information disparity. I think employers will quickly find ways around it as they always have and it will promptly be business as usual.
mrcactu5··on New York City bans employers from asking potential workers about past salary
you will see...
mrcactu5··on New York City bans employers from asking potential workers about past salary
keep telling yourself that... this law is bullshit
mrcactu5··on New York City bans employers from asking potential workers about past salary
umm... laws like this don't last very long. employers quickly develop work arounds. I will be interested to see what hiring managers try (or fail).
mrcactu5··on Show HN: Resumegen – A single-page LaTeX resume generator
i write particularly bad resumes (as my colleagues have told me) and I find resume critiques dreadful. A tool like that produces the basic item is truly helpful.
mrcactu5··on Paradoxes of probability and other statistical strangeness
my favorite data science paradox is the "curse of dimensionality"

https://en.wikipedia.org/wiki/Curse_of_dimensionality

mrcactu5··on UK researchers create graphene-based sieve that can remove salt from seawater
we have experienced droughts in Puerto Rico. this could likely lower our water prices as well.

http://www.noticel.com/noticia/177413/la-sequia-es-para-larg...

mrcactu5··on 88% of all integers have a factor under 100
it's so strange to see Victor Granville, there is also Andrew Granville and he writes professionally on patterns of the primes.

"Mathematicians Discover Prime Conspiracy" (Quanta Magazine, 2016)

A previously unnoticed property of prime numbers seems to violate a long-standing assumption about how they behave. https://www.quantamagazine.org/20160313-mathematicians-disco...

mrcactu5··on 0.30000000000000004
I haven't seen it yet... what's with that final four (common to all languages)?
mrcactu5··on Vivaldi browser v1.8 released, with calendar-style browsing history
it looks beautiful. sometimes applications like this are hesitant to share their source code b/c of their business model or something.

are there any good "hackable" web browsers these days?

mrcactu5··on Statistician Proves Gaussian Correlation Inequality
terry tao has a great discussion of the entropy power inequality

http://mathoverflow.net/questions/167951/entropy-proof-of-br...

mrcactu5··on The miracle of reading and writing Chinese characters
I like pulling apart the different Chinese characters into the radicals.
mrcactu5··on Python for Android
can Python now be used instead of Java?

for example Go language, I heard is not a total substitute for Java for Android

mrcactu5··on Stockfish – Strong Open-Source Chess Engine
is this an effective tool for beginners?
mrcactu5··on NIST Digital Library of Mathematical Functions
these formula books have been around for a long time. and you can generate your own!

a lot of people here are engineers? I wonder have you guys tried proving some of them?

mrcactu5··on The Mathematics Autodidact’s Aid (2005) [pdf]
one day I woke up and realized the mathematics curriculum is almost completely arbitrary. there is no reason to teach algebra, geometry, trigonometry in that order

by the middle of graduate school everyone is self-teaching and you may know more than a professor from time to time about a given topic. And certainly about the basics since professors forget to do basic integrals at the board.

any good study group has to retain momentum and keep the discussion moving forward.

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