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Search - "math"
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I know a guy who writes everything in Haskell.
He started learning it because his parents got him into a math school (and math schools in Russia use either Python or Haskell), he liked it, but later he dropped out. Today, apart from Haskell, he only really knows HTML and CSS, and maybe some JavaScript.
He writes backend AND frontend in Haskell and uses some kind of JRPC stuff to manage all that. He told me that his life is a pure heaven. He IS RELEVANT (!!!!!!), his apps always run without bugs (because in Haskell you can mathematically prove that there are no bugs), they are performant, faster than C (because you can't write a complex enough app in C that will be as efficient as compiled Haskell, because it's you vs compiler). He doesn't have any problems in life whatsoever. He never got burned out, he never got anxiety or depression. He doesn't act pretentiously and stuff, he's just a normal person who rarely even mentions that he can program.
Science says it can't be done! You can't only know Haskell and be a relevant software engineer! You know what, he didn't _know_ it was impossible. He's like that grandpa from a meme, he got Alzheimers, but because of it he forgot that he had Alzheimers, and now remembers everything.
The fun thing is that he looks like a typical gopnik, with adidas suits and stuff.
What a gem of a person.26 -
Most of the tech YouTubers are really noob engineers.
Joma was a data scientist. He is an L3 engineer at Google and he hasn't done much during the last 1 year based on his internal stats.
I saw tech leads stats while he was at Google and that dude did nothing during his time. I'm sure he was an IC before he became a lead.
Clement talks about system design bull shit but he's a math major who worked on some angular front end while he was at Google. Basically his experience in tech is mostly involving using mat-button and mat-input. He also quit FB in a month.
Listening to tech lead gives me cancer. That guy was also some front end/ mobile engineer. I don't think any less of mobile engineers but tech leads acts as if he built some large scale systems at Google and FB. His opinion about react native shows how much of a noob he is. He also talked about docker in one of his video which showed he had some fundamental misunderstanding of what docker is. In his courses, he struggles to explain simple algorithms.
I don't know how these people have the courage to claim themselves as some sort of experts in the field when they are extreme noobs. They also sell some shady courses and are robbing innocent college kids.
One thing they all do well is talk. Which I give them 10/10.11 -
I'm in a few women in tech groups. A woman, who is a highly experienced developer, shared that she had a conversation with her male friend, who is a startup founder. He said that his criteria for recruitment are high levels of math and physics since high school and early interest in programming (e.g. age of 10). She said his criteria made her sad and excluded.
A fellow woman developer commented that it's reasonable to feel sad when you learn your good friend is an idiot. I snorted some Monster out of my nose reading this and I'm still coughing and chuckling.
To be honest, the founder's requirements do sound super ridiculous, and I imagine his startup is made up of clones of the same guy type, wearing different shades of gray t shirts and sandals with socks.56 -
If only I knew about the manga like that during my university times... Math could have been a piece of cake.
Manga guide series includes 40 books
Including manga guide to databases.
Closest more professional level same level friendly, would be head first series8 -
I have been working for my current employer about 3 years now. When I first got to work I was asked by another employee to work on an editor for certain types of files. We will call this employee Ed. Because his name is Ed.
Ed is a verifiable genius, and a genuinely great guy to work with. He is amazing with hardware and math. Ed has a need, or shall I say fetish. He wants an editor for some our proprietary files called "Settings files". They are just xml. Nothing special.
However, I have always had other priorities. We actually had a tense moment when I had to tell Ed my boss doesn't want me to work on the editor. I had started looking into working on the editor when my boss said stop working on this file. So since then it had become a running joke between Ed and myself. Well, I think it is funny, Ed smiles, but I know he wants this editor bad. Our boss even suggested at one time that Ed write this editor. He looked into it, but "other priorities" trumped this effort.
Okay, so now it has been 3 years and we still don't have this editor. Then I had an epiphany. Since Ed wants this editor I found an idea for the name of this program. "Settings Editor" is just too mundane. I now think it should be called: "Mr. Edit". I also found that the library we use for most of our development has text to speech built in. So when the program starts I can have it say: "Hello, I am Mr. Edit, the talking Settings Editor". I have never wanted to write this program so badly before. Muahahahahaha!6 -
Music. Music teaches you numbers, creativity, patterns, structure, and basically primes your brain for math and creativity in that space. In addition, it teaches you how to think both within a structure and outside the box, as well as the importance of repetition, memorization, and learning a new language.
Music really was my second language, and the ability to read/write it fluently is a skill that takes a long time to master. I really believe that it increases your brain plasticity so much.4 -
I woke up screaming today. I had a nightmare where I ran git pull on the project I work on every day, and it had become a .NET project.6
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I love job posts made by HR cronies:
"A majority of your time will be enabling development in our React Native app with a large amount of time dedicated to the rest of our stack."
So, if my math is correct... a majority is greater than 50%... but... "a large amount of time" meaning the rest?
Another job post asking for the typical 10x dev
BuT wHy CaNt We FiNd AnYoNe?!?!?! ThErEs NoT eNoUgH gOoD heLP tHeSe DaYs!!!2 -
Question - is this meaningful or is this retarded?
if
2*3 = 6
2*2 = 4
2*1 = 2
2*0 = 0
2*-1 = -2
then why doesnt this work?
6/3 = 2
6/2 = 3
6/1 = 6
6/0 = 0
6/-1 = -6
if n/0 is forbidden and 1/n returns the inverse of n, why shouldn't zero be its own inverse?
If we're talking "0" as in an infinitely precise definition of zero, then 1/n (where n is arbitrarily close to 0), then the result is an arbitrarily large answer, close to infinite, because any floating point number beneath zero (like an infinitely precise approximation of zero) when inverted, produces a number equal to or greater than 1.
If the multiplicative identity, 1, covers the entire set of integers, then why shouldn't division by zero be the inverse of the multiplicative identity, excluding the entire set? It ONLY returns 0, while anything n*1 ONLY returns n.
This puts even the multiplicative identity in the set covered by its inverse.
Ergo, division by zero produces either 0 or infinity. When theres an infinity in an formula, it sometimes indicates theres been
some misunderstanding or the system isn't fully understood. The simpler approach here would be to say therefore the answer is
not infinity, but zero. Now 'simpler' doesn't always mean "correct", only more elegant.
But if we represent the result of a division as BOTH an integer and mantissa
component, e.x
1.234567 or 0.1234567,
i.e. a float, we can say the integer component is the quotient, and the mantissa
is the remainder.
Logically it makes sense then that division by zero is equivalent to taking the numerator, and leaving it "undistributed".
I.e. shunting it to the remainder, and leaving the quotient as zero.
If we treat this as equivalent of an inversion, we can effectively represent the quotient from denominators of n/0 as 1/n
Meaning even 1/0 has a representation, it just happens to be 0.000...
Therefore
(n * (n/0)) = 1
the multiplicative identity
because
(n* (n/0)) == (n * ( 1/n ))
People who math. Is this a yea or nay in your book?25 -
My personal top 4:
good tea,
good booze,
time with gf,
time with friends,
Just clears my head, but doing any of my other hobbies can really help because it just gets me in a different headspace -
https://en.wikipedia.org/wiki/...
Is an interesting read.
May have applications of measuring the randomness of RNGs, as deviation from Viswanath's constant3 -
I've just finished installing Ubuntu Unity 22.04 on a new SSD installed on my wife's computer; it's so relaxing the fresh air of a new Linux distribution installed.3
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For any product of two non-trivial primes, it is *always* possible to get the quotient of its factors b/a derived solely from the product of those factors, *without* first factoring the product (p).
Fight me.3 -
can we agree that T is a dumb variable name?
I mean I totally know what it means in that instance, but why do people keep writing math stuff like they'd skribble it on paper?8 -
While the topic is a bit divisive, the statistical technique highlighted in this post is really cool:
https://wattsupwiththat.com/2022/...2 -
https://i.postimg.cc/4ycRFNZf/...
The factorization shit I'm always ranting about? I decided for once to explain it visually in this handy dandy little infographic.
We're essentially transforming the product from an unsmooth set of potential factors in its factor tree, to a factorization tree that guarantees first that the set of potential factors are all 2, 3, 5, and a or b of p, and second, that all the factors are *smooth integers* of a or b.
This is basically what Adi Shamir was trying to do with TWINKLE and TWIRL, despite checking a hundred thousand+ potential primes.
I did it in four.7 -
I try not to distract myself with more pleasurable things until I've got everything done. For example, I don't watch YouTube between my tasks, don't keep checking my cellphone every time, play chess, etc.4
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I feel like the world, and my life has been so crazy lately that I needed something reassuring.
```ruby
def test_true_is_true
assert_equal true, true
end
```2 -
floating point numbers are workarounds for infinite problems people didn’t find solution yet
if you eat a cake there is no cake, same if you grab a piece of cake, there is no 3/4 cake left there is something else yet to simplify the meaning of the world so we can communicate cause we’re all dumb fucks who can’t remember more than 20000 words we named different things as same things but in less amount, floating point numbers were a biggest step towards modern world we even don’t remember it
we use infinity everyday yet we don’t know infinite, we only partially know concept of null
you say piece of cake but piece is not measurement - piece is infinite subjective amount of something
everything that is subjective is infinite, like you say a sentence it have infinite number of meanings, you publish a photo or draw a paining there are infinite number of interpretations
you can say there is no cake but isn’t it ? you just said cake so your mind want to materialize something you already know and since you know the cake word there is a cake cause it’s infinite once created
if you think really hard and try to get that feeling, the taste of your last delicious cake you can almost feel it on your tongue cause you’re connected to every cake taste you ate
someone created cake and once people know what cake is it’s infinite in that collection, but what if no one created cake or everyone that remember how cake looks like died, everything what’s cake made of extinct ? does it exist or is it null ? that’s determinism and entropy problem we don’t understand, we don’t understand past and future cause we don’t understand infinity and null, we just replaced it with time
there is no time and you can have a couple of minutes break are best explanations of how null and infinite works in a concept of time
so if you want to change the world, find another thing that explains infinity and null and you will push our civilization forward, you don’t need to know any physics or math, you just need to observe the world and spot patterns10 -
I want to run a simulation like rolling a dice N times and find out what's the distribution/probability of getting certain SUMs after the rolls.
However the dice is more likely to land on a lower number, and/or depends on what the number it landed on previously.
Stats wise I think ideally I want to be able to just input the avg, standard deviation, and skewness into a Random class constructor, and then ask it for N "random" numbers.6