Message in #general · Neon Genesis Phijkchu

Dialga Apr 10, 2024 2:23 PM general

why is there a fancy R in my math

Dialga Apr 10, 2024 2:23 PM general

x and y were bad enough

Spooky Phijkchu Apr 10, 2024 2:23 PM general

it means by solving it, the math becomes real

Spooky Phijkchu Apr 10, 2024 2:23 PM general

it's a spell

legorhin Apr 10, 2024 2:23 PM general

that's just to indicate x is a 4 element vector

heir Apr 10, 2024 2:23 PM general

media.tenor.com

Dane Apr 10, 2024 2:26 PM general

media.tenor.com

🐝🌯🌯🌯💥 Apr 10, 2024 2:28 PM general

It means its a team rocket problem

Polar_ Apr 10, 2024 2:35 PM general

Replying to legorhin #jazardly

any cool math people want a fun problem?

What's the S

Polar_ Apr 10, 2024 2:36 PM general

Secret?

legorhin Apr 10, 2024 2:38 PM general

that's not an S

legorhin Apr 10, 2024 2:39 PM general

its the partial derivative notation

Polar_ Apr 10, 2024 2:39 PM general

Oh god.

Phijkchu_Pikachu Apr 10, 2024 2:45 PM general

I do not know what a DFT is, is FT fourier transform?

Polar_ Apr 10, 2024 2:46 PM general

Yes

Polar_ Apr 10, 2024 2:46 PM general

I googled it

legorhin Apr 10, 2024 2:46 PM general

its the discrete fourier transform, which is what the FFT algorithm implements

Phijkchu_Pikachu Apr 10, 2024 2:47 PM general

Oh discrete

Phijkchu_Pikachu Apr 10, 2024 2:47 PM general

okay

Phijkchu_Pikachu Apr 10, 2024 2:48 PM general

I was drawing a blank

legorhin Apr 10, 2024 2:52 PM general

I cleaned it up a bit

Polar_ Apr 10, 2024 2:53 PM general

Replying to legorhin #jazardly

I cleaned it up a bit

If the R is the Realness spell, what's the C

legorhin Apr 10, 2024 2:53 PM general

complex

Polar_ Apr 10, 2024 2:53 PM general

It's ok I have time

Polar_ Apr 10, 2024 2:53 PM general

:^)

Mini Apr 10, 2024 3:19 PM general

heir Apr 10, 2024 3:20 PM general

huh

Gent Apr 10, 2024 3:20 PM general

There was something else written beforehand

legorhin Apr 10, 2024 3:53 PM general

here's what i think the solution is

SPOILER_image.png 26.7 KiB · captured_local

Polar_ Apr 10, 2024 3:57 PM general

Replying to legorhin #jazardly

here's what i think the solution is

Leg this is hieroglyphic to me, but pls lmk if I follow. This is a function (of sin(t/2)) made to be a continuous matrix? Because what was given was limited and you wanted it continuous?

legorhin Apr 10, 2024 3:58 PM general

the second part is me factoring out the factor sinh(t/2)

legorhin Apr 10, 2024 4:00 PM general

the form of the solution of the problem fits a matrix exponential, and these are how to write the matrix out fully

Polar_ Apr 10, 2024 4:01 PM general

media.tenor.com

legorhin Apr 10, 2024 4:01 PM general

e^tF but written out

image-c7581a7a9aaf8acc.png 564 B · captured_local

legorhin Apr 10, 2024 4:03 PM general

and there's probably some missing boundary condition stuff in the initial problem setup

Wuvwand Apr 10, 2024 4:54 PM general

Ugh I’ve been out of calculus for too long but also not long enough

Polar_ Apr 10, 2024 4:57 PM general

I like understand the underlying baby calc/trig stuff, but that's it. I'm not even on the discrete part, but the Fourier Transform is cool. The example I watched was about sound waves.

legorhin Apr 10, 2024 4:57 PM general

if you don't know how to do matrix exponentials this will never make sense

Polar_ Apr 10, 2024 4:57 PM general

Replying to legorhin #jazardly

if you don't know how to do matrix exponentials this will never make sense

I will not stop trying, for like another half an hour

legorhin Apr 10, 2024 5:53 PM general

here's simplified as best as I can with hopefully no algebra errors

legorhin Apr 10, 2024 5:53 PM general

I wonder if this function has a name

image-f09f09c521db7732.png 760 B · captured_local

legorhin Apr 10, 2024 5:56 PM general

oh there's a typo

legorhin Apr 10, 2024 5:56 PM general

SPOILER_image.png 17.3 KiB · captured_local

Phijkchu_Pikachu Apr 10, 2024 6:02 PM general

I hate the fucking j for the imaginaty number notation

Phijkchu_Pikachu Apr 10, 2024 6:03 PM general

I know why its used

Phijkchu_Pikachu Apr 10, 2024 6:03 PM general

and I understand that

Phijkchu_Pikachu Apr 10, 2024 6:03 PM general

but I hate it

Dane Apr 10, 2024 6:04 PM general

what the fuck is an imaginary number

legorhin Apr 10, 2024 6:04 PM general

one of the most important math things ever

legorhin Apr 10, 2024 6:04 PM general

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

Imaginary number

An imaginary number is a real number multiplied by the imaginary unit i, which is defined by its property i2 = −1. The square of an imaginary number bi is −b2. For example, 5i is an imaginary number, and its square is −25. The number zero is considered to be both real and imaginary.Originally coined in the 17th century by René Descartes as a der...

en.wikipedia.org

Phijkchu_Pikachu Apr 10, 2024 6:04 PM general

Unrelated

Phijkchu_Pikachu Apr 10, 2024 6:04 PM general

Phijkchu_Pikachu Apr 10, 2024 6:04 PM general

holy fuck youtube

Dialga Apr 10, 2024 6:05 PM general

all numbers are imaginary

reorruatrnte Apr 10, 2024 6:08 PM general

youtube games?

reorruatrnte Apr 10, 2024 6:08 PM general

and they have a civil war game?

Jaz Apr 10, 2024 6:08 PM general

Replying to Phijkchu_Pikachu #klombak

Click to see attachment 🖼️

I'm going to "uninstall YouTube" and by "uninstall YouTube, I mean shoot Susan Wojacki right in her autistic brain

Phijkchu_Pikachu Apr 10, 2024 6:08 PM general

based and fedpost pilled

legorhin Apr 10, 2024 6:08 PM general

she doesn't work there anymore

Phijkchu_Pikachu Apr 10, 2024 6:08 PM general

its the indian dude now though

Jaz Apr 10, 2024 6:08 PM general

Fuck me, that makes way more sense

legorhin Apr 10, 2024 6:10 PM general

get the youtube unhook extensions and hope they fix this before it stops being an experimental layout

Phijkchu_Pikachu Apr 10, 2024 6:10 PM general

I do not care to get extensions

Phijkchu_Pikachu Apr 10, 2024 6:11 PM general

I just am wondering what the fuck the angle is

legorhin Apr 10, 2024 6:11 PM general

playables should be easy to hide by modifying that ublock filter I posted earlier

legorhin Apr 10, 2024 6:11 PM general

though I don't see them anyway because my only feed is subscriptions

Dane Apr 10, 2024 6:15 PM general

remember when youtube had friends list and DMs

legorhin Apr 10, 2024 6:15 PM general

it also had video replies

Dane Apr 10, 2024 6:15 PM general

oh yeah with that subculture of replygirls

Dane Apr 10, 2024 6:15 PM general

those were the days

legorhin Apr 10, 2024 6:16 PM general

remember when you could see the dislike count?

Dane Apr 10, 2024 6:16 PM general

no that was before my time

Jaz Apr 10, 2024 6:18 PM general

Replying to legorhin #jazardly

remember when you could see the dislike count?

Remember when it wasn't full of awful people and the webcams weren't good enough yet so the auto focus was always fucking up

Jaz Apr 10, 2024 6:18 PM general

Pepperidge farms remembers

legorhin Apr 10, 2024 6:19 PM general

https://youtu.be/4UdEFmxRmNE?feature=shared

Minecraft - Part 1: How to Survive the First Night www.youtube.com

Dane Apr 10, 2024 6:20 PM general

2010 was 30 years ago..

Wuvwand Apr 10, 2024 6:27 PM general

I miss when I didn’t know anything about minecraft

Wuvwand Apr 10, 2024 6:28 PM general

Although I bet it was less the unknown and more my childlike wonder that did it haha

Dialga Apr 10, 2024 6:29 PM general

i miss when i didnt know yogscast scripted half their stuff

Wuvwand Apr 10, 2024 6:44 PM general

Me but with Rob tbh

Spooky Phijkchu Apr 10, 2024 6:58 PM general

Replying to Phijkchu_Pikachu #klombak

Click to see attachment 🖼️

these are 1:1 the games that were native to chromeOS/Chromium already

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