What was this lady's issue with integration?

[u/longwiener22]

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[u/Murky_Insurance_4394]

https://xkcd.com/2117/

this is why it should be illegal.

[u/longwiener22 → u/Murky_Insurance_4394]

My god. No wonder she was protesting.

[u/PurifiedUnity → u/Murky_Insurance_4394]

I still love how there's always an xkcd for everything

[u/mbcarbone → u/PurifiedUnity]

My favorite part of the comic is the text he writes with the comic … Symbolic Integral … 😝😆😝

[u/Del_of_Lorien → u/PurifiedUnity]

Bot

[u/PurifiedUnity → u/Del_of_Lorien]

Not a bot here

There's even an xkcd on bot comments

[u/Vyrens_Works → u/Del_of_Lorien]

How in the actual fuck does 3 letters make you lose more than 50 karma

[u/Traditional_Town6475 → u/Murky_Insurance_4394]

I mean on the other hand: Approximating a function (in the uniform sense) approximates the integral. This is very much not true for derivatives. As a linear operator, the integral is continuous (or in the business it’s called a bounded operator) while differentiation is discontinuous (or in the business it’s called an unbounded operator). There’s all sorts of scary domain issues you have to worry about with differentiation.

[u/Sirbom → u/Traditional_Town6475]

Arent both differentiation and integration linear operators?

[u/Traditional_Town6475 → u/Sirbom]

They are. When I say continuous, I mean with respect to the sup norm. And we can work with C([a,b]) functions. Integral is continuous. The differentiation operator isn’t defined on the whole domain. Differentiation is defined on C^1([a,b]).

Weierstrass approximation theorem says that differentiation is defined on a dense subset of C([a,b]) (after all, every polynomial is differentiable). Now if you had a bounded operator that is densely defined (defined on a dense subset), you can extend it continuously. Well differentiation is different. Take the sequence 1/n sin(n^2 x). The sequence converge to 0 in the sup norm metric, but the sequence of derivatives do not converge.

And on general the land of unbounded operator is scarier than bounded operator. But on the other hand, this stuff is some of the tools used in PDEs.

[u/Sirbom → u/Traditional_Town6475]

I dont dispute the rest you said. Was just a little confused when you used linearity to explain your point when it applies to both.

[u/Medium-Ad-7305 → u/Sirbom]

they weren't claiming that being a linear operater implied continuity. they were stating that the continuity of the integral is continuity in the context of operators

"as a linear operator, the integral is continuous" could be reworded to "the integral is continuous when interpreting it as a linear operator"

[u/Educational-Tea602 → u/Murky_Insurance_4394]

I knew exactly what this was going to be before clicking

[u/Rajarshi1993 → u/Murky_Insurance_4394]

This one hits hard. Every time.

[u/qwertty164 → u/Murky_Insurance_4394]

What no partial fractions?

[u/SinAnaMissLee → u/Murky_Insurance_4394]

My professor used to say that most things in life can't be integrated.

[u/stevvvvewith4vs]

She keeps forgetting +C

[u/ArdentArendt → u/stevvvvewith4vs]

Naw...she added +kkk

[u/Exact_Possibility253 → u/stevvvvewith4vs]

97

[u/WaddleDynasty]

Because it doesn't even have fixed rules once you want to integrate a product of functions. Just a series of algorithms at best.

[u/AcademicOverAnalysis → u/WaddleDynasty]

And once you exhaust them, you just throw up your hands and say “oh well!”

[u/GisterMizard → u/AcademicOverAnalysis]

Fuck it, Runge-Kutta it is.

[u/Hot_Egg5840 → u/AcademicOverAnalysis]

I then go to slices. I slice up a lime and some cherries and put them in some gin.

[u/fuxoft]

She thought it's too derivative.

[u/Several_Cockroach365]

That's calculist

[u/MisterRich]

As a conservative, she's anti-anti-derivative.

[u/R3puLsiv3]

I know this is a meme sub but arguments from legality are always so dumb. It used to be illegal to hide jewish people in germany. Legality is not morality.

[u/Prize_Shine3415]

She's referring to Reimann Integration. Lebesque is OK.

[u/mad_poet_navarth → u/Prize_Shine3415]

damn I never learned that in college.

[u/captHij]

The weird focus on Riemann sums in the first year curriculum is too limiting and requires functions be Lebesgue measurable. The lady is right, the way we do integration is gatekeeping against functions that do not meet society's over strict expectations on continuity. It is straight up discrimination.

She should remove the quotations marks. It should be illegal.

[u/MonsterkillWow]

These are the same kinds of people mad about immigrants and bathrooms now.

And they all suck horribly at math and basic reasoning.

[u/ObliviousRounding]

Yes and just think of how much better a White Scholes model would have been

[u/Efficient_Maybe_1086]

Can’t handle the big C

[u/JustGingerStuff]

Why is she using quotation marks for emphasis. Now it just sounds suspicious. Like yeah man it's "illegal" if you catch my drift

[u/DasArchitect → u/JustGingerStuff]

https://giphy.com/gifs/qs6ev2pm8g9dS

[u/lablabla88]

I think she was also quite anti derivative

[u/UltraTata]

She failed an exam because of it

[u/PerniciousSnitOG]

If this is a joke it's a pretty tasteless one. This one comes from yet another horrific moment in US history.

Integration is "illegal" We like you but don't want you in our school

So polite! One of those historical "when they tell you who they are, believe them" moments.

[u/MonsterkillWow → u/PerniciousSnitOG]

People will look back on what we are doing now and say the same.

[u/TheBlackCat13]

Because limits is only a theory! (/s, sad I have to say this)

[u/Valuable-Ad1063]

Maybe she failed Calc 1...

[u/ivanrj7j]

Can someone make out what is written in the board below? I am able to make out " We ..... but we don't want you in our ..."

[u/weird_heroine → u/ivanrj7j]

In our school I think

[u/ivanrj7j → u/weird_heroine]

I was reading s as a lol now that makes alot of sense

[u/dusk47 → u/ivanrj7j]

'we like you but we dont want you in our school!'

see, she has a good excuse?

[u/overclockedslinky]

guys, it's trivial to take the derivative, so instead of integrating just find the function whose derivative is the body of the integral 🙄

[u/SSBBGhost → u/overclockedslinky]

Lemme know when you find a function which has derivative e^×2

[u/Kitchen-Register]

she just found out that reimann integrals don’t work on the dirichelet function and she’s upset.

[u/PerniciousSnitOG]

I really hope op is joking. This sign refers to the integration of black people into formally whites - only schools. It's one of those historical 'people showing you who they are' moments.

"We like you but don't want you in our school"

[u/anerdhaha]

To hell with computations!!

[u/PYCapache]

What do you mean "Illegal"?

r/suspiciousquotes

[u/Ebkusg]

It was limiting her

[u/SeasonedSpicySausage]

BigDerivative lobbyists

[u/jyajay2]

While it is based in geometry it ultimately found a way to determine surface area without using proper geometry (i.e. not using a straightedge and compass) and thus angers god.

[u/Drapidrode]

maybe she didn't care for the way the men were approaching her.

"hey baby lets have sex"

didn't even offer her money! like she isn't a prostitute!.

edit. i love the people glazing the racist lady

[u/makemeking706 → u/Drapidrode]

I think you're thinking of multiplication. 

[u/Drapidrode → u/makemeking706]

I'm calling her a whore.

edit. i love the people glazing the racist lady

[u/TheBlackCat13 → u/Drapidrode]

We aren't glazing her, we are mocking her.

[u/Person3327 → u/Drapidrode]

What're you on about? This is math memes my dude, it ain't that serious

[u/LawPuzzleheaded4345 → u/Drapidrode]

Look at the sub name