The beauty of mathematics by Ciro Santilli 35 Updated +Created
Ciro Santilli intends to move his beauty list here little by little: github.com/cirosantilli/mathematics/blob/master/beauty.md
The most beautiful things in mathematics are results that are:
Good lists of such problems Lists of mathematical problems.
Whenever Ciro Santilli learns a bit of mathematics, he always wonders to himself:
Am I achieving insight, or am I just memorizing definitions?
Unfortunately, due to how man books are written, it is not really possible to reach insight without first doing a bit of memorization. The better the book, the more insight is spread out, and less you have to learn before reaching each insight.
Functional equation by Ciro Santilli 35 Updated +Created
Numerical analysis by Ciro Santilli 35 Updated +Created
Techniques to get numerical approximations to numeric mathematical problems.
The entire field comes down to estimating the true values with a known error bound, and creating algorithms that make those error bounds asymptotically smaller.
Not the most beautiful field of pure mathematics, but fundamentally useful since we can't solve almost any useful equation without computers!
The solution visualizations can also provide valuable intuition however.
Important numerical analysis problems include solving:
The most important projects done by Ciro Santilli by Ciro Santilli 35 Updated +Created
Ciro Santilli has sometimes wasted time with low impact projects such as those listed at Ciro Santilli's minor projects instead of doing higher impact projects such as those mentioned at: Section "The most important projects Ciro Santilli wants to do".
But maybe "Everything you did brought you where you are now." applies, maybe it is during the "low impact activities" that one gets the inspiration and experience required for the "high impact ones".
Accounts controlled by Ciro Santilli by Ciro Santilli 35 Updated +Created
Ciro Santilli controls the following accounts.
With non-trivial activity:
Trivial activity only:
Profiles without URLs (OMG...):
  • Discord: username cirosantilli, previously cirosantilli#8921
Accounts in Chinese websites. These accounts might be banned or altered or offer other limitations, so Ciro only communicates briefly through them. All communication through those channels should obviously be assumed to be compromised:
Accounts in Russian websites:
Dead websites:
Ciro Santilli's drug experiences by Ciro Santilli 35 Updated +Created
Ciro Santilli never did any illegal drugs, because he:
so don't expect any amazing stories here.
Like LDS believers, Ciro never drinks coffee nor smokes, and only drinks alcohol and tea sparingly, because they are all addictive drugs and bring no net increase of energy and concentration.
Ciro prefers to only enjoy a glass of tea when going out cycling on a cold day (Earl gray, with milk, no sugar), or get a half pint of beer when going out with friends to a pub.
Ciro only got reasonably drunk twice on his life:
  • once when he was quite young, likely pre-10 years old, while visiting an uncle's home, and adults were having a very nice sweet and thick type of alcoholic cocktail, and Ciro drank a bit too much and that made him really really stupid
  • once while studying at University of São Paulo, somehow someone was giving free beers at one of the parties (at which Ciro practiced Cirodance). And since Ciro had always been a cheap-ass, he thought, hey, this is a good chance to try it out. Ciro remembers that this made him a bit euphoric, active, very stupid, and a bit horny (though of course, he got no pussy as usual).
Later in life, around the time of his wedding, there were guests around all the time, and he was drinking beer with them all the time. Then one day, during lunch, Ciro felt a weirdly strong desire to drink one more pint. It was at this point that Ciro realised first-hand what mild, but real, alcohol addiction felt like, and he didn't get that drink, and swore from then on to never drink more than one glass a week, and only with friends at a bar after work. Richard Feynman tells a very similar story on his book Surely You're Joking, Mr. Feynman chapter O Americano, Outra Vez!, see: Section "Richard Feynman's drug use".
Ciro Santilli's hardware by Ciro Santilli 35 Updated +Created
One day, someone will invent a way to take the hash of a piece of hardware and see its history log, like software engineers do with version control. Until then, this is as close as you can get.
Ciro one day guessed that hardware would certainly be a slang for something naughty, and yup, here we are: www.urbandictionary.com/define.php?term=Hardware, drug paraphernelia. Read on!
Audiovisual art by Ciro Santilli 35 Updated +Created
Game by Ciro Santilli 35 Updated +Created
Public speaking by Ciro Santilli 35 Updated +Created
Website by Ciro Santilli 35 Updated +Created
Art by Ciro Santilli 35 Updated +Created
Stuff that is beautiful but useless because it does not make food or houses cheaper.
Or from Ciro Santilli's best random thoughts:
Without technology, one cannot survive. Without art, one cannot live.
But that sure enough has a Jesus semi-precursor, and likely many others: man shall not live by bread alone.
There is some art however that lives in the fine intersection between beauty and usefulness:
Test data 16 by Ciro Santilli 35 Updated +Created
Test data 17 by Ciro Santilli 35 Updated +Created
Bug reports and feature requests by Ciro Santilli 35 Updated +Created
Named algebraic equation by Ciro Santilli 35 Updated +Created
Static website by Ciro Santilli 35 Updated +Created
Internet forum by Ciro Santilli 35 Updated +Created
Piracy website by Ciro Santilli 35 Updated +Created

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