=== ANCHOR POEM ===
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@user-95 I'm not sure, but I once tried to design an algorithm that predicted
prime numbers. I made this algorithm in my pursuit, but I couldn't figure out
how to utilize it:
https://www.desmos.com/calculator/h8oopoctnh
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=== SIMILARITY RANKED ===
--- #1 fediverse/4084 ---
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@user-1074
the more you try, the more you have to calculate, which is a problem, because
endlessly recursive calculations create infinite loops, which frankly are
impossible to compute because they defy computation! Not good, not ideal, no
thank you, not for me, no thanks, not what I'd like.
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--- #2 fediverse/572 ---
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Hi, I'm learning about semaphores right now and trying to explain them to a
friend. But I only sorta understand how they work - can anyone look at this
pseudocode and tell me if I'm on the right track?
![Some C pseudocode working through the semaphore design pattern. Here's the text of the pseudocode: /* no lock example */ void start_thread(int* x) { *x += 1; } int main() { int x = 0; for (1000 times){ start_thread(&x); } print(x); } /* in this case you have no idea what will print because thread A will take x and be like "ah yes it's 423" and then in the next instruction it'll be like "I'll increment this to be 424" and in the next one it'll say "okay now it's time to store 424 in the variable X" but like... there's a thousand threads all doing that at the same time, so odds are you'll have 5 that are like "ah yes this is 423 I'll set it to 424" */ /* not a good plan. Need a lock, so only one thread can use it at once. */ /* mutex example: */ void start_thread(int* x, int* x_mutex) { *x += 1; *x_mutex = 0; } int main() { int x = 0; int x_mutex = 0; for (1000 times){ while (x_mutex != 0){ } /* do nothing */ x_mutex = thread_id; start_thread(&x, &x_mutex); } print(x); } /* this should print 1000, but it's basically as slow as doing it single threaded. */ #define MAX 10 void start_thread(int* x, int* x_semaphore) { *x += 1; *x_semaphore += 1; } int main() { int x[MAX]; int x_semaphore = MAX; for (1000 times) { for (int i = 0; i < MAX; i++) { x_semaphore -= 1; start_thread(&x[i], &x_semaphore); } while (x_semaphore != MAX) { } /* do nothing */ } int value = sum(x, MAX); print(value); }](/similar-different/media/224b236a8660c34a.png "Some C pseudocode working through the semaphore design pattern. Here's the text of the pseudocode: /* no lock example */ void start_thread(int* x) { *x += 1; } int main() { int x = 0; for (1000 times){ start_thread(&x); } print(x); } /* in this case you have no idea what will print because thread A will take x and be like \"ah yes it's 423\" and then in the next instruction it'll be like \"I'll increment this to be 424\" and in the next one it'll say \"okay now it's time to store 424 in the variable X\" but like... there's a thousand threads all doing that at the same time, so odds are you'll have 5 that are like \"ah yes this is 423 I'll set it to 424\" */ /* not a good plan. Need a lock, so only one thread can use it at once. */ /* mutex example: */ void start_thread(int* x, int* x_mutex) { *x += 1; *x_mutex = 0; } int main() { int x = 0; int x_mutex = 0; for (1000 times){ while (x_mutex != 0){ } /* do nothing */ x_mutex = thread_id; start_thread(&x, &x_mutex); } print(x); } /* this should print 1000, but it's basically as slow as doing it single threaded. */ #define MAX 10 void start_thread(int* x, int* x_semaphore) { *x += 1; *x_semaphore += 1; } int main() { int x[MAX]; int x_semaphore = MAX; for (1000 times) { for (int i = 0; i < MAX; i++) { x_semaphore -= 1; start_thread(&x[i], &x_semaphore); } while (x_semaphore != MAX) { } /* do nothing */ } int value = sum(x, MAX); print(value); }")
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--- #3 messages/181 ---
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I know you don't want to hear this, but there is a chance that there will come
a time where your life depends on your ability to debug a computer without the
internet. To set up an SSH server. To install Linux. To program in C. To do
something else that I'm not prepared for... If StackOverflow didn't exist
because network connectivity has been lost, could you remember syntax? Maybe
it's a good idea to set up a local LLM that can answer basic questions about
technology. Maybe it's a good idea to set up on your parents computer, just in
case you have to hide out there for a couple months. Maybe it's a good idea to
download wikipedia, just in case.
If I need to use a mac, I'm screwed
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--- #4 fediverse/5247 ---
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the hardest problem in computer science is figuring out why users do what they
do.
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--- #5 fediverse/1246 ---
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@user-883
hehe if I don't understand how it works it's difficult for me to use things.
My Linux friends get so exasperated with me because I'm like "cool script
gimme like 2 days to figure it out" and they're like "bro just use these
flags" and I'm like "no"
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--- #6 messages/1076 ---
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[picture] now that's what I call motivated [a computer made this? no, I did,
reflecting off of it's beautiful statistical form]
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--- #7 fediverse/2459 ---
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this is the simplest implementation of scalable anarchism I could think of.
tell me how it's flawed so I can improve it before I need it.
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--- #8 fediverse/111 ---
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@user-95 that's why I like programming - it's my favorite form of spelling.
i'm not very good at remembering all the names and the numbers, but I like to
think I can make things do a function.
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--- #9 fediverse/2475 ---
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If you want to design a society, first learn how to build a decentralized
scalable multiprocessor computer program.
It could literally flip bits, the point is to practice architecture not
accomplish a goal.
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--- #10 fediverse/2120 ---
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sometimes I think performing my art was just an excuse to use Linux. At least,
some of my art.
But hey, I'm not complaining, it's awesome.
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--- #11 fediverse/316 ---
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│ CW: mathematics │
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ask not "what can logarithms do for you" but rather "what shape does a
logarithm make"
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--- #12 fediverse/3927 ---
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okay but why has nobody ever approached AI from a game design perspective like
seriously there should be researchers who are multidisciplined in this kind of
thing
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--- #13 fediverse/2922 ---
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@user-192
now I want to re-implement strings as structs in C! I don't know why I never
thought of them that way.
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--- #14 messages/711 ---
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https://www.desmos.com/calculator/cxayticajg
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--- #15 fediverse/2510 ---
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@user-1074
if I wanted to accomplish this goal, I would host a fediverse server on a
raspberry pi and post the link around the building (the owners will remove it
so you gotta keep posting them)
then, potlucks.
then, friendships.
then, organization.
be patient with them. people are slow to be constructive.
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--- #16 fediverse/3680 ---
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it's probably a good idea to write pseudocode, then real code, instead of
starting with real code, and bugfixing something incomplete and more difficult
to reason with.
unless you write real code easier than pseudocode. idk do what works for you.
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--- #17 fediverse/38 ---
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@user-36 ideally you'd convert to an arbitrary base (in this case 9) and shift
from there, but shifting two places might work. idk I haven't thought about it.
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--- #18 fediverse/112 ---
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I live through the moments where I find a folder of stuff I made that I forgot
about and I can go back and see it for the first time.
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--- #19 fediverse/6437 ---
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if I was writing a programming language, I'd name it C just to fuck with people
(great, now others can decide how it's known)
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--- #20 fediverse/6292 ---
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I'm stuck. I don't know how to leverage whatever talents I have into making
things happen. Maybe I should seek advice from a wise elder...
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