#đă»general-2
1 messages · Page 119 of 1
it's just that 0/0 is an indeterminate form
so this is where you gotta do something a bit more non trivial
to prove if f(x) = e^x then f'(x) = e^x as well
How do you do that
the zeros cancel out and you're left with e^x 
đđ
tbh though I have no clue
im working on it
^ that
@gusty ermine also, notation wise. if you already substituted the 0 from the lim, dont write lim h -> 0 anymore
you need a few limit properties to derive the derivative of e^x
I overestimated my brain capacity
@abstract scaffold could you please explain me something about proving limits?
like what?
How did this come about?
what does it mean to find a relation between delta and epsilon? I get why f(x)-L = x - a if the limit exists but i just don't get the delta and epsilon part
what does it mean to get like delta = epsilon/2
u = e^h + 1
u - 1 = e^h , make e^h by itself by taking away 1 from both sides
e^h = u - 1 change LHS and RHS
ln(e^h) = ln(u-1) take log of both sides
hlog(e) = log(u-1) log property
h = log(u-1) more log properties
@median trail oh jesus, ok... let me think of how to explain this. epsilon delta is quite hard to grasp, and i still don't have it fully grasp either but here i go.
first off f(x) - L does not equal x - a to my knowledge
i mean, you can get x - a starting off with the f(x)-L part if the limit exists (?
basically for any distance epsilon on the y axis given away from the y-value of limit, we can find at least one positive delta distance on the x-axis away from the x-value of the limit
if a delta region exists, then we say the limit exists in there.
so if you get delta = epsilon/2
that delta is positive
because epsilon is always positive
so you have a found a delta > 0
some delta distance given any epsilon distance
but what do they mean? maybe they represent what means to be close to the limit?
the epsilon and delta?
yes
epsilon is the distance away from L (some close distance)
^or technically any distance
but usually small, since we're dealing with limits
delta is a small distance away from your point "a" |x-a|
limit x->a f(x) = L
so we can't find the limit directly, but we use some distance away epsilon, to find some delta, and if that delta region exists, we say the limit is contained in there, so L must be the limit.
so they represent what it means to be close to the limit, right? depending the delta i use i can set up the distance around the limit that we could call "being close to it" ?
yes.
so as long as you find that delta, it wraps around the limit, so you found the limit
this is an example of delta not wrapping around the true limit
because we know trivially this should be "a"
oh
but I found an epsilon that doesn't wrap around the true limit, so by delta-epsilon, this limit is bogus.
so if i were to do that algebraiacally, i would have never found a delta
so basically, epsilon delta is used to conjecture a limit, then try to prove it's true
by knowing things that happen around that limit
simple conjecture
@median trail hopefully this graph makes more sense
ohhhhhh so i can always draw a triangle?
er, not exactly, the triangle is showing the equal distance away from b.
so the limit of x->b of x is b
but definitely not a, as you have unequal distance, can't find a delta.
if the red and orange areas are equal width, this implies the purple and yellow/green area have equal width as well
In this section we will give a precise definition of several of the limits covered in this section. We will work several basic examples illustrating how to use this precise definition to compute a limit. Weâll also give a precise definition of continuity.
Here's a quick good read on the delta-epsilon definition of a limit
The whole "prove the limit equals this using the definition" is too much for me
I stopped trying to do those kinds of proofs halfway down the page
when I was learning calculus i did the same thing because I felt that this wasn't even helping my overall calculus knowledge
oh I see
I used it to help me understand some of the convergence tests used for infinite series
The proof of those tests used (or borrowed elements of) the epsilon-delta definition of a limit
I'll probably go back to it once I near proof-heavy classes
@agile sedge please keep commands in #đ€ă»general-bot
Sorry!
no worries! ^^
El lĂmite

anyone own a oneplus 7 pro by any chance?
They're 100 pounds off this week
and ive been looking to buy a new phone
i've still got a shitty ass phone
my brothers been practically begging me to buy a new one lmao
What phone u got?
I think an OPPO F1 with crackd screen
ye never even heard of that lol
@marsh linden Tengo un oneplus 5 y mi novio un oneplus 6
Llevo mĂĄs de cuatro años con mi mĂłvil actual y ya que pronto es black friday, deberĂa actualizar
Nah, mejor quedarte con lo que tenés
A menos que sea tan viejo que no puede actualizar cosas de seguridad o lo que sea
No pero va mĂĄs lento que antes
Un oneplus 7 cuesta 500 pounds o algo, y es un mĂłvil bastante bueno
me gusta mucho el oneplus
@mossy cloud @median trail I love proofs
Podés ahorrar 100% por no comprar algo nuevo
es vdd
if x and y are odd, then x+y is even
x = 2k+1
y = 2m+1
x + y = 2(k+m+1)
QED
am I already a mathematician? @ashen mist
That seems incorrect to me, idk.
it is
you need to clarify that k=/=m
and they are also integers
and you need to clarify that (k+m+1) is an intener
integer
x = 2k+1, for some integer k (by definition of odd)
y = 2m+1, for some integer m (by definition of odd)
x +y = 2k+1 + 2m+1 = 2(k + m + 1) = 2b
b must be an integer because integers are closed under addition (meaning an integer + another integer = an integer)
So x+y is even by definition of even numbers
k can equal m
It doesn't have to
Of course, we're assuming that integers are closed under addition
U lot are very smart
numbers

@median trail integers are closed under addition. I'm just saying we're using that information in the proof without proving it
aaah
Mmm group theory mmmmm
Aaaaaa
How can u hate discrete
cos i only got distinction in it
I got bored and tried to integrate x^n/(1+x^3)
tengo muchĂsimo respeto para las personas que le gusta hacer matemĂĄticas
shit hurts my brain
I think it's kind of a social meme that math is supposed to be difficult, so people don't bother putting in the same amount of effort into being proficient at math that they do other difficult life skills, and then they are suddenly 16 and in Algebra 2 and in way over their head and they think it's because math is inherently difficult when it's really not
@glass dragon blame the system
we've been raised in a society where it's ok to suck at maths
no, it's not okay
More like sucking at school overall
If we treated everything else in life like we treat math, we'd all be incapable of walking or wiping our own butts
bold of you to assume i can do either
"walking is too hard. I keep falling down, and when am I ever going to use this anyway? I'm going to have a car when I grow up"
lmaooo
well but at least teachers would be able to explain why you need to walk
but if your teacher is like "you need to learn derivatives for reasons i'm incapable of explaining"
there's clearly something wrong
assumming you get that far
my teacher already failed at teaching me divisions
I hated my maths teacher
To be fair, a lot of why we learn math in school isn't so we can use math later on life, so it's a bit hard to explain sometimes
yeah ofc but i feel useless when i realise i can't do it and someone else can
But nobody asks their sports coach "why do we need to run this drill - it's never going to be like this in a game". They understand they're honing skills
But again the social meme is that math is useless and too difficult
So people think they should ask that question only with math
I am pretty sure people ask that with almot everything taught in school
I suppose, and i suppose it's easy to hate on a class that's almost entirely theory and doing exercises
I have yet to see myself why I needed to learn at what ozone layer airplanes fly in for chemistry
@abstract scaffold dude discrete es mejor de calc bc o calc ab
and math after like precalc is basically useless in the real world and i can say that from experience*
math before precalc is pretty useless, though, too
I mean, when are you ever going to factor a polynomial or write an exponential equation for the decay rate of chlorine in a pool if youre 99.99999% of the population
the only people who would ever use those skills are people who write math textbooks
pero algebra es mas importante de calculus
y ur more likelt yo use algebra then calc * atleast i think
si es true
verdadero**
the soft skills taught by participation in an algebra class are important, but you will never use the hard skills you learned in that class
I'd prefer learning those softs skills doing something I like, like being a nerd about cities xd
i guess it's not really "soft skills" vs "hard skills"
More like, yeah the implicit reasoning skills of algebra is important, but the actual algebra skills are not
que es los "soft skills"
doesn't matter, I reworded it around that term
soft skills are skills used for socializing and person-to-person abilities I think
but nobody in their entire life will factor a degree 4 polynomial by grouping, and yet that's an algebra skill that you are taught
the only people who even use degree four polynomials in their life after high school are certainly not using ones that can be factored
all I'm saying is when you said "math after like precalc is basically useless", I wanted to point out that the math before precalc is also useless
vaye
It really depends
If you like to do your own finances, calculus comes in handy
In order to do calculus, you need everything underneath that
i don't understand what calc ab and calc bc are.
ah, searched it up. i see now.
only things i really liked discrete and probability were nightmares for me
what are you talking about i regularly solve partial differential equations as part of my job
But you're an egg
that is correct
@past storm jajajaja
@summer rune maths after precalc have many real-world applications
@glass dragon I have a question, the reason why a vector is a line form the origin to a given point is because it's like we had a circle with radius r, so the magnitude of that vector would be the radius of the circle?
it's just that we don't draw the circle where that vector belongs?
@median trail yeah pretty much
oh wow I love complex numbers now
I've been introduced to them twice, in my previous uni and in the one I'm currently in and for some reason my geometry teacher didn't explain this when she was teaching us vector geometry
@median trail you can just think of a vector as an object with a direction and a magnitude (basically the "length")
There's a really good 3blue1brown video about it i think
@ashen mist si yo se pero el material antes de precalc and despues de calc no es mas menos importante
@abstract scaffold que grado tu es en?
Qué? Querés decir que no es importante lo que aprendemos antes de precalc y después?
Literal, el cĂĄlculo es esencial en cosas de fĂsica, naturaleza, informĂĄtica, etc
I know but I didn't really understand why it was a line
Gotcha
direction and magnitude is what I understand of vectors so far
wonât take linear algebra until next year
oof
Next semester I will take linear algebra
Fun
I canât wait until I finish diff eq, matrix algebra, and linear algebra so I can get into more fun math
I'm studying it on my own because i don't want surprises when I take it hahah
i've already taken diff eq and it's okay, there are a ton of methods to resolve a diff eq
Yeah, I plan to teach myself it over winter break before I take it in the spring
Then I can take two math classes next semester and get that one over with as well
you just need to know how to solve integrals and derivatives and exponential functions as far as I remember
Well, it is if your class is about the technical part like the theorems behind it then it can be hard but if not then it's pretty easy
cool
my teacher at the end of my linear algebra course showed us some nonlinear stuff
crazy...
if only i were smarter... haha
nonlinear programming?
nonlinear algebra
honestly what does non linear algebra look like
diff eq and lin alg are next semester for me i think
lemme see if i still have the lecture notes from it
doing real analysis and calc atm
not what they're called but its about the same content wise
ahh nvm
i have the lecture notes
but theyre in spanish
and the lecturer
being a lecturer
has TERRIBLE handwriting
is this legible????
si.. obtenemos la sol? de ?? exactamente como en el caso del sistems? linerliardo, por ? lado el ? ??? estable
pero consideremos la ?? definid? pa? si estĂĄ en la ?
muy Ăștil
đ
Oh
@ashen mist No i wanted to say that b4 precalc is easier than after ccalc material*
Isn't that every medicine degree?
Idk, the one that writes down barely legible prescriptions?
I'm not going into the medical field, so I was making a generalization
how the heck do we use jupyterhub*
like it wont let me compile mechanisms and i dont wanna ask my professor over and over*
that's their job is to answer your questions
Just set up my Apple Music on my iPad
I really need iOS 13 on my phone lol I am missing out on a lot
Plus apple music is better
Epic, what version are you on right now?

iOS version
boo apple music
Yeah
Amaroq is just a shill
;D
como resolver "weighted graphs" en discrete*
y mas importante, que es mejor libro para aprender discrete por que mi profesor es muy mal
uwish
@fossil cipher on my iPad itâs iOS 13.2.3 and on my phone 12.4.1
My iPad is already too old iOS 12 is the latest version. I have 12.4 on my iPhone and i'm still considering rooting it.
What devices do you have
iPad air (first air) and iPhone 8 - don't want to upgrade, this is last device with 3D touch and I just love it.
Wbu?
Oh she has the latest one
I know but I'm considering rooting it
Wuts rooting
Jailbreak

and change shit
aac is better than mp3
How
By rooting it
Iâm referring to amaâs random comment
Oh, my bad.
Oh it's only random because I'm really late
aac compresses music in a way that retains better sound quality than mp3
Hmm
Hats why apple music is better than spotify
Apple Music uses aac?
Yes
Welp I just uploaded an mp3 there guess Iâll have to aac convert it
Apple is like the only company that uses aac
Apple is unique and different 
There's no point converting an mp3 into aac. The damage is already done
Craaap
I have the Um
Wait nvm

I have it saved on ALC
Dammit I forgot to the name
Of the app
It has a cone
vlc
If it's in mp3 than yeah
Any good websites to convert YouTube videos to aac?
Explain how
Ew
Spotify isnât bad but
I donât use it
And also every non Apple user calls Apple users sheep
Like jeez what if its called preference?
I don't use Spotify either
I like apple because of their systems
ConvertĂ youtube a WAV y despuĂ©s WAV a AAC deberĂa resultar mĂĄs fĂĄcil
It's lossless*
Ok
I didn't know Spotify had moved away from mp3
WAV isn't compressed at all, so it's a bit of a misleading statement to say it's lossless. But YouTube uses a really low bitrate - you can't undo that
How low?
96*
If you're going to pirate music from YouTube, you need to go all out and pirate lossless flac compressions
From a real website
Lossless is confusing my brain rn
If WAV isn't compressed at all, then it's the highest possible quality rit?
I guess
but saving an mp3 as a wav file doesn't magically make the quality better
aac is lossy
i didn't mean anything at all
you asked a question and I wanted to answer it as accurately as possible
just because something is wav doesn't mean it's the highest possible quality, because you don't know where that file came from
stop
but the word "lossless" is a description of compression, and wav is uncompressed
um
Ok
why?
- I know the difference between lossy and lossless - believe me, i understand basic computer stuff and a bit more ;D 2) You/nobody specified where the file came from and I meant it like that the file was originally wav and not something else so if you did convert it to something else it would be the same quality (or a bit worse depending on if it is lossy or lossless). Hopefully i clarified everything.
Nothing you said confused me
I was just making sure that my answer was as clear and accurate as possible
Okay
if you meant "the file was originally wav", and nobody specified where the file came from, you can't really get mad at me for not assuming you meant that
Agree, my apologies.
but if you ask an ambiguous question, I'm going to give a long winded answer that addresses each part of the ambiguity instead of making assumptions about what you might have meant
especially since isn't some private conversation where what you personally meant is important
what's important is how it could be interpreted by all the other people reading the question
i didn't want to just say "yes" and then epic think that any file that was .wav is some how special
Language barrier
Amaroq uses big words Iâll try to translate it to kid speech
You don't have to
Ooh...
Laptop falling apart. Ya es hora de construir un desktop
Desktop is the way to go đ
Estoy en el proceso de construirme un desktop también. Que baje los precios de algunas partes para Black Friday xd
cuales specificaciones va a tener tu desktop, baumer?
Voy a construir el mĂo este finde
yeyyy que la disfruten!
Voy a comprar un monitor de mi colega mañana
Y también tengo que descargar Linux en mi usb
Y el resto de Microsoft también?
Odio power point también, lo demås lo puedo soportar
Jaja
Microsoft
@mortal dagger voy a construir un desktop este finde
Nah, voy a seguir con Linux Mint
con qué DE
Install gentoo
I'd just like to interject for a moment
the only reason i stick with Windows it's because Linux isn't native compatible with some games i often play
and, it fucking worked awfully on my laptop
trust me, i've tried 5 times to switch to Linux, but... man, it's impossible.
i would have ditched windows already if i could run anything i wanted on linux, but alas
If something works then fine
but if it isn't i have to spend 3 hours navigating into forums of every kind and color to search for a solution to something i just could do in 2 minutes on Windows
yep
no thanks really..
an O.S has to make my life simple, not harder
that's where I find it gets a bit.... cult-like for hardcore linux fans
like they enjoy things being pointlessly complicated
arguing that it's worth it because they can change the color of a few pixels 

plus is unbelievable how they couldn't create (or didn't want to) a unified method for installing things..
you have to go look for software you want in their app stores.
But i realized a lot of that software is outdated and never reuploaded with new versions, so in order to have the last update i had to go look for into the owner or creator of that software and see what can i do to install it
and a lot of times, how to install it is different
it's designed to make stackoverflow.com your homepage 
like in Windows is easy and was always the same
a ".exe" file
for instance, the last time i tried to use Linux, i just wanted to install Telegram, Spotify and WhatsApp.
Telegram did not worked in their app store, so i had to go look for it in Telegram website
WhatApp did work
and Spotify didn't work so i had to do the same as i did with Telegram (go look onto the website)
i found there that installing Spotify and Telegram had totally different methods
'i find it really uncomfortable but ok' i said
a week later, my Linux stopped booting
so i had to go look for the reason of why the hell that happened
it seems that the distro i chose (which was based in another distro) had an issue with certain SSD drives than prevented Linux from Booting
i've nuked the O.S and go back to Windows
yeah...
hard to make it your main OS unless the only thing you ever do with a computer is programming i guess
for the rest it's dependency/library hunting simulator
i'm not gonna lie, is useful for certain things but it gets tiring if you don't have the time to spend like 2 or 3 hours for go look every problem you may find
so in that case, Windows is a bliss
it has the balance between simplicity or things done and it's modifiable at a certain levle
not everything, but yes
i had this w7 install for 2 years now and it hasn't given me any single problem, can run whatever, never again 
Linux es mĂĄs fĂĄcil para mĂ
No soy programador jaja
Para lo que hago, es mĂĄs cĂłmodo
Y si necesito Windows por alguna razĂłn, siempre puedo usar una mĂĄquina virtual
imo linux has improved a lot over the years. these days, i rarely run into issues.
windows feels extremely sluggish by comparison. the only reason i use windows is for gaming
spotify, discord, firefox, skype are all working fine
Im having problems guys
I canât save a transparent image to my iPad
Even when having turned it transparent
plus is unbelievable how they couldn't create (or didn't want to) a unified method for installing things..
what?
for instance, the last time i tried to use Linux, i just wanted to install Telegram, Spotify and WhatsApp
Âżsudo pacman -S telegram-desktop && yay -S spotify?
wsp no tiene app nativa solo porque es ilegal
¿por qué es ilegal? lamentablemente no es culpa de Linux
ni de su ecosistema
Does anyone have any good recommendations for Spanish books? I'd say I'm around a B1-B2 level if that helps
I want to read more in Spanish but I don't really know where to start
I think there are books in spanish with english translation side by side
đ | MaciekR2D2 leveled up!
Or at least with harder words translated
Porque?
Son historias bastante pequeñas
buena prĂĄctica, gracias đ
Duolingo tiene podcasts en espanol con transcripcion
a
:b
Jaja
Este radio ambulante se va bien
I might look into it later
Necesito aprender mås tiempos en español
Yo creo lo se solo pasado perfecto ahora y presente continuo
Yo también
I went to sleep at midnight(this is way iver my bed time) and for some reason I wanted to stay awake watching videos on youtube
Qué videos?
about Maxwell equations and some others about astronomy
Uf
Tomaste suficiente agua?
No haha
por qué te despiertas tan temprano entonces.. tienes clases?
@scenic chasm
stop pinging me
Hola
hola
Hay un problema?
HOLA
hui
"FBI, OPEN UP!"
thanks!! nice day to you as well
@tardy stag oh jajajaj
hello.
Hola
lol

Just use water smh
I thought one of those was found beaten till they weren't usable and thrashed all over the floor
that was hitchhikerbot
maybe?
UPDATED 2018: https://youtu.be/RaHIGkhslNA I went through every Boston Dynamics video and found every instance where they abused a robot. Made with love. #bo...
must be a fun job that
oh yeah
senior robot abuser
didn't know it was a meme
wym?
"Oh hey what you applied for that you told me you got a job?
I uh, applied to abuse robots and kick them"
I forgot that them testing the balance and crap was a meme lol
hey it's legit testing its just fucking hilarious
yep haha
I've seen one of those in person (not a boston dynamics one)
MIT researchers have developed an algorithm for bounding that they've successfully implemented in a robotic cheetah. (Learn more: http://mitsha.re/YCipV) The...
@vestal pine

mmmm
Maths gods I must consult thee
need a hand
taken it as 1*(1+x^2)^n/2 and done by parts but can't get it to come together
anyone know the ritual to summon a veraniego
so far ive gotten to 2^n/2 - int(0,1) of xn(1+x^2)
Nerd
even bigger nerd
ur in the maths channel what u expect kid
cool
not really itâs bizzle
lol
đ | biz leveled up!
nice
fuck off
smh
bet someone actually muted me now lmao
hey I hate my life, welcome to the server
its a game yeah, but in order to make a simple "capturing" mechanic, i had to create 6 triggers lol, two of them are active just if other 2 aren't
it was really fun messing around with this
now when I've got time i would try creating a proper map and see how can i use this triggers to do something fun
the objective was that those red soldiers (or that little blue archer at the left) would be able to capture that grey flag there by just standing still near the flag
its kinda stupid, but idk i was bored and i wanted to share it even if it is lol
Itâs kind of like getting the sine and cosine reduction formulas
yep
although the question didn't want you to use trig sub, it might be easier to see the recursion relation through trig sub.
when proving limits properties we just assume that epsilon/whatever(depending on the property) exists because...?
trig sub/by parts
@median trail limit properties? like lim(a+b) = lim (a) + lim (b)?
for those, you assume the epsilon/delta conditions are satisfied for the LHS
and use those to try to epsilon/delta prove for the RHS
"assume" isn't the right word there. more like, "given that we have this limit, we have these epsilon/delta properties" now we are going to use algebra to show the RHS is also true.
what's the limit, i cant quite read it @median trail
x^4 - 6x + 6 = 2 as x -> 1 ????
that seems dodgy already
1-6+6 = 2?
x^3 -5x+6
oooh maths
anyone wanna join an online reading group on abstract algebra đ
@tardy stag did you get the game graphics from AoE?
@median trail your proof failed because
x^2 + x - 4 < (2+sqrt(2))(2-sqrt(2))
DOES NOT IMPLY
|x^2 + x - 4| < (2+sqrt(2))(2-sqrt(2)) [this line is false]
just plug in a hugely negative number for x and you'll see easily it's false
but I said 0<x<2
@median trail still doesn't work, plug in x = 0.1
|-3.89|=|3.89| = 3.89 NOT LESS THAN 1.99
oh what can i do to prove it?
im unsure to be honest
you can cheat and use other limit properties to split it up and use other lemmas
e.g. use 2 epsilon delta proofs then combine them
^but again, this seems a bit cheat
wouldn't it be 2?
(2+sqrt(2))(2-sqrt(2)) = 2^2 - (sqrt(2))^2 = 4 - 2 = 2?
so x^2 + x - 4 < 2
but this does not imply abs(x^2+x-4)<2 as shown earlier by plugging in 0.1
@median trail
When you take the square root, i think you have to account for the negative square as well
you have to be careful when squaring with inequalities
and also square rooting
Can't we just say abs(x^2+x-4)<4?
this is why i hate maths
it makes sense that 0<x<2 doesn't work

because any x between 1 and 2 is less than 2
but if you use 0<x<1 then the graph behaves as expected
yep. as edsel said.
this is why squaring both sides is pretty fatal. (when one of the sides is negative)
there should be a way to proof thid
some limits are just really bullshit to prove
if you made the problem up yourself, then chances are it's gonna be pretty hard to solve via epsilon delta

I think it's okay
ah, nice spot. hmm. i don't see flaws yet
it makes sense
I think you were trying so hard to find a perfect number K
but all you needed was to prove that there was a number K that was greater than abs(x^2+x-4)
First time doing this so I'm not 100% sure
ope I messed up
I think I just needed to graph the parabola
min delta is supposed to be 1, e/4
not 4, e/4
Hey! I'm learning! A year ago, I thought doing this kind of stuff was impossible
đ | Coursite â« leveled up!
wait, i think i see a flaw
oof
ah
Oh yeah, that's my bad. I was looking at edsel's work and skipped some work
yep
That probably doesn't cut it for proofs doesn't it?
It's not a flaw if I can justify it right?
Just need to add some lines of work?
if u can justify it. but i think i found a flaw in advance
Where?
gimme a sec
oh ok
Got it, thanks
well done 
I'm actually really happy I did it 
Next time I'll just graph the parabola lol
yass
@mossy cloud @median trail actually, there's a flaw somewehre else
we can't say it's less than epsilon/4,
hopes and dreams crushed
if |x-1||x^2+x-4| < K|x-1| it can mean two things with relation to epsilon
|x-1||x^2+x-4|<K|x-1|<epsilon (what we want)
or
|x-1||x^2+x-4|<epsilon<K|x-1|
so, therefore the proof is flawed
at least for choosing K = 4
yeah, this proof is pretty hard
đ | cat æČćæș leveled up!
@abstract scaffold good shit
I got it in the end with smth kinda like your first method
What program might you use to convert the Spanish audio in this video into Spanish text? https://www.youtube.com/watch?v=aoWWjQFA_DQ
ESPAĂOL Esta CanciĂłn fue muy difĂcil de cantar es demasiado alegre y triste a la vez, les juro que se me hacĂa un nudo en la garganta cada que la cantaba asĂ...

@abstract scaffold hello mr clever how are you with your infinite series
got a couple of those that I could use someone elses eyes on
@cursive wave it is AoE lol
@gentle heath not too strong tbh
sure thing
nasty fucker uno
nasty fucker dos
I only need to show convergence
or divergence
not finding actual values
im not sure if i did one of them correctly
as i said, im weak at these
change my n's to k's lmao
I ended up along those lines but didn't have a quick way to show that 1/k^3 converged
ah shit yeah
we proved this in lecture we just never named it
it was just a result
thanku
Nice.
again, im bullshitting here. i could be wrong.
ah yeah, true
not sure if i did it right this time
no nvm, that doesnt work either
it approaches 0 lmao when approaching infinity, so i solved nothing
i got lazy and didnt write down all my proof well
not used them much that is
dw
im lazier
asking you to do it
ah I see
comparison
comparison combined with integral test
then take the comparison and show divergence by an integral test
nifty
is that first line saying >= ....../(k^1/4 * k-1/4)
to cancel it off?
I added k^3/4 on the bottom
so that k^1/4*k^3/4 become just 1 on the denominator
does it not just become k?
am I missing stn
fuck. im stupid
yeah since k>=1
uwu
uwu
uwu
was that bizzle attempting to talk
yeno da
Ryan hasn't been on yet
making the misbehaving children suffer is he
well mr f14s just shown me how to do the last q on my homework I couldn't manage so I guess I'll go write that up
cya
fuck u bizzle
muted little fuck
@gentle heath shut up
oh god oh fuck he's loose
@abstract scaffold I think the proof should still work. I used Kabs(x-1)<Δ because it was easier to work with than abs(x^2+x-4)*abs(x-1)<Δ
and since abs(x^2+x-4)*abs(x-1)<Kabs(x-1)
then if I can show that Kabs(x-1)<Δ then abs(x^2+x-4)*abs(x-1)<Δ as well
@gentle heath well, if i integrated properly, keeping k on the denominator, it will still work, the integral is just "harder to integrate"
http://tutorial.math.lamar.edu/Classes/CalcI/DefnOfLimit.aspx
I mostly followed this professor's method of doing this (Example 3 is where he introduces the K), but it's making sense to me (slowly and surely)
In this section we will give a precise definition of several of the limits covered in this section. We will work several basic examples illustrating how to use this precise definition to compute a limit. Weâll also give a precise definition of continuity.
Thanks for the resource 

Hey guys I have something simple
So I want to find how much 1 minute is equal too
When in fractions
How much is 1/60 of a minute
a second?
1/60*100
Lol
Which number?
not even a number
Ugh this is simple this shouldnât be this hard
@mossy cloud the reason in that example they could add absolute value was because both sides of the inequality were both positive
in our case we have -4 < something < 2
one side neagtive, one side positive
and we cant conclude anything
they had 8 < x+5 < 10
so |x+5|<10 provided |x-4|<1
they had |x+5||x-4| < epsilon
Yes, but it shouldnât matter right? Weâre just trying to choose a number K that would fit the criteria, and it shouldnât matter if I choose K to be 4 because it still is greater than abs(x^2 + x - 4)
given abs(x-1)<1
@mossy cloud no wait, yeah ur right. we just need to "guess" a delta.
we already did the hard work finding K
so from there, we just guess delta is epsilon/4 and it works out
yiss
@median trail ignore what i said eariler, it works.
Itâs a good thing you forced me to take a closer look at my proof, because itâs getting clearer and clearer hmmm
Canât wait till I hit the good âol math classes with proofs
Malwarebytes is offering a 50% discount for their yearly subscriptions
tempting with how much shit ive been pirating as of late
Always pirate
Pelisplay
Forever
Speaking of which I need some good shows to watch from somewhere other than spain.
It can be from any country too... cartoons, dramas, telenovelas, I really don't care
I'm gonna try to watch la casa de papel from Spain but that's like the only thing I got so. If anyone cares to help me just @
hola



@silver crypt
Cartoons:
Legend quest (original Mexican cartoon)
Archer (dubbed)
Total Drama (dubbed)
Series:
La Casa de las flores (Mexico)
Siempre Bruja (Colombia)
El JardĂn de bronce (Argentina)
Casados con hijos (Argentina)
Un gallo para Esculapio (Argentina)
Diablero (Mexico)
Ingobernable (Mexico)
El vato (Mexico)
Telenovelas:
Yo soy betty la fea (Colombia - the original Ugly Betty)
Montecristo (Argentina)
Corazon valiente (Mexico)*
La reina del sur (Mexico)*
El señor de los cielos (Mexico)*
La casa de al lado (Mexico)*
PasiĂłn de gavilanes (Colombia)
La Reina del Flow (Colombia)
La Doña (Mexico)*
Rebelde Way (Argentina)
- Not strictly Mexican, most of these take place in the USA, usually a lot of Colombian and Venezuelan actors too
And I yes I do watch too many telenovelas 
đȘđż
So, how could I run C# without compiling?
I think you have to compile it @ocean otter it's not like a scripting language, as far as I know
Yeah you have to compile it.
I was looking for something fast, not even an executable, and visual studio did the trick
Thanks though
hmm?
"The only difference between toward and towards is the s. Both spellings are correct, and they mean the same thing: in the direction of."
Hiciste una pregunta en #đșă»aotw-natives
Oh
ese canal es solo para colgar audios
PerdĂłn
hahaha
lol
HAHAHAH
you may think it's useless. but forgetting plus C in DE is deadly.
in DE, ur likely to not "totally skip it though", as you need to actually solve the C_k values when you have initial/boundary conditions
well, the MIT integration bee doesn't require you to right +C or to use absolute values in logs. [can just assume it's non-negative for example, provided the intergral was indefinite]
At first I thought "+C" was referring to some obscure programming language
Then I saw "calculus" lol
was Castro a dickhead to his people?
And then it's not +C when you're doing partial integration ope
@abstract scaffold If I'm solving an exercise that's not about calculus then why would I use the limit notation? like does that let me use any especial property or ...?
the first two drawings from left to right look delicious
Why arenât u purple now
cuz im blue (clue to im blue song)
da ba dee da ba daaaa
@median trail a strawberry cake
@median trail sorry, I didn't quite understand you when not using limits notation.
I mean, why would I use it for? I mean, if I were not resolving calculus problems
I can get that I could use it for derivatives
but in what other contexts not related to derivatives nor integrals I would use it for?
Compound interest?
what do you mean?
Like the interest you get in your bank account. That limit approaches e.
Limits are useful to see how a function behaves in general around a point.
Limit also is useful in working out if a series diverges. (But this is calc lol)
for example, let's say that I'm studying biology and doing some research about molecules and I get this
f(x) = x-1/x^2-1 when x is 1
in that case I can solve the problem just using algebra, right?
That's still limits. Yes you have to use algebra to solve it bit it has a discontinuity at +/- 1
Plugging in one straight away is no good
And changing the function with algebra means it's completely continuous
Which it's not, so using limit notation hides that ambiguity
yeah but do I need to use limits notation?
oh
that makes sense
but wait
And changing the function with algebra means it's completely continuous
what do you mean?
I forgot how to quote
At x=1 it has a value
But in your original function, f(x) DNE at x=1
Draw (x-1)/(x^2 - 1) vs 1/(x+1)
They're slightly different functions
And changing the function with algebra means it's completely continuous
^
they are algebraic equivalent but the domain of the functions arent the same
the right one has a domain R, the left one R - {1}
Yeah, domain is different, so you have to use limit notation to show you're keeping an eye on that domain difference
but the equal signs when using algebra doesn't help? like they are equal so... even if they are slightly different in just one point
equivalent != equal
đ
let's say I'm not into calculus but I solve my problem using algebra, is it a big deal to put it for people when looking at what I did
what's the difference between equal and equivalent?
equal means "exactly the same", equivalent is like "we can assume they are the same in some aspects"
*math rigor left the channel*
Those equations are only equal at every point except at x=+/-1
But when you wanted to plug in x=1 , you violated your native working already
but people are going to notice the I solved the issue because when I tried to plug 1 in the function before using algebra it was indetermined but after that I get a value
"It's only indeterminate in limit land"
It's undefined if you straight plug it in
"Yes we'd probably understand what you're doing but there can be confusing steps if one were to just skim through your working"
its a dangerous thing handle function as if were equations
so when working out indeterminate functions in order to use the equal sign then we have to use limits, but this is just to get the value when x = 1?
to get the value as x approaches 1
I don't get the last photo, why we can't say what y is, you mean y being equal to 0/0 or when trying to find out the value for x=1





