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This is a theory house only!!! (mander.xyz)

submitted 3 months ago by fossilesque@mander.xyz to c/science_memes@mander.xyz

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[-] muzzle@lemm.ee 43 points 3 months ago

The cover should read "theoretical physics"

[-] lugal@sopuli.xyz 12 points 3 months ago

This might be beyond your imagination but there is also "applied physics" or even "engineering"

[-] Leate_Wonceslace@lemmy.dbzer0.com 5 points 3 months ago

Either way, they're raising their child right.

[-] LibertyLizard@slrpnk.net 27 points 3 months ago

Funny, my household is the opposite lol.

My wife in particular hates pure math.

[-] FilthyShrooms@lemmy.world 17 points 3 months ago

Studying engineering made me hate pure math more than I should lol, I really wish I learned linear algebra in a practical sense. Like really when will I ever be working in infinite dimensions?

[-] PM_ME_VINTAGE_30S 5 points 3 months ago* (last edited 3 months ago)

I actually designed a digital equalizer using an IIR filter this semester, which actually does theoretically work on sequences of numbers, which constitutes an infinite dimensional vector space. The actual math was just algebra and programming, but it was an implementation of a Z-transform transfer function which is a sequence operator (maps input sequence to output sequence).

IMO infinite-dimensional stuff shows up in two types of problems:

For some reason, you need to solve the partial differential equation you started with, i.e. you can't use symmetry or approximations to simplify it into an ordinary differential equation.
When you're dealing with signals that change in time or space, you have to decompose those signals into simpler signals that are easier to analyze.

[-] affiliate@lemmy.world 4 points 3 months ago

Infinite-dimensional vector spaces also show up in another context: functional analysis.

If you stretch your imagination a bit, then you can think of vectors as functions. A (real) n-dimensional vector is a list of numbers (v~1~, v~2~, ..., v~n~), which can be thought of as a function {1, 2, ..., n} → ℝ, where k ∊ {1, ..., n} gets sent to v~k~. So, an n-dimensional (real) vector space is a collection of functions {1, 2, ..., n} -> ℝ, where you can add two functions together and multiply functions by a real number.

Under this interpretation, the idea of "infinite-dimensional" vector spaces becomes much more reasonable (in my opinion anyway), since it's not too hard to imagine that there are situations where you want to look at functions with an infinite domain. For example, you can think of an infinite sequence of numbers as a function with infinite domain. (i.e., an infinite sequence (v~1~, v~2~, ...) is a function ℕ → ℝ, where k ∊ ℕ gets sent to v~k~.)

and this idea works for both "countable" and "uncountable" "vectors". i.e., you can use this framework to study a vector space where each "vector" is a function f: ℝ → ℝ. why would you want do this? because in this setting, integration and differentiation are linear maps. (e.g., if f, g: ℝ → ℝ are "vectors", then D(f + g) = Df + Dg, and ∫*(f+g) = ∫f + ∫g, where D denotes taking the derivative.)

[-] PM_ME_VINTAGE_30S 1 points 3 months ago

Infinite-dimensional vector spaces also show up in another context: functional analysis.

From an engineering perspective, functional analysis is the main mathematical framework behind (1) and (2) in my previous comment. Although they didn't teach functional analysis for real in any of my coursework, I kinda picked up that it was going to be an important topic for what I want to do when I kept seeing textbooks for it cited in PDE and "signals and systems" books. I've been learning it on my own since I finished Calc III like four years ago.

Such an incredibly interesting and deep topic IMO.

[-] drolex@sopuli.xyz 4 points 3 months ago

Truly, the flesh is weak, if you value her mortal and imperfect form above the pure essence of theory.

Alas, I am concerned about the future of humanity.

[-] LibertyLizard@slrpnk.net 6 points 3 months ago

Lol I agree with her though. She’s just more passionate about it since she is a professional math-er and I’m not. Corrupted in both flesh and spirit, and we like it that way.

[-] drolex@sopuli.xyz 6 points 3 months ago

Hoping you will be happy forever!

[-] Ransom@lemmy.ca 10 points 3 months ago

What’s the original?

[-] ThatWeirdGuy1001@lemmy.world 83 points 3 months ago* (last edited 3 months ago)

The original comic her dad finds a Bible. Originally she yelled "God bless you dad" to which the dad responded "Go have premarital sex and get an abortion right now!"

It's a comic by a right wing nut who thinks women are oppressed by having free will.

[-] MehBlah@lemmy.world 27 points 3 months ago

I recognized the drawing style. What a loser.

[-] Spacehooks@reddthat.com 23 points 3 months ago

Super unfunny. edit makes better use of it.

[-] nicknonya@lemmy.blahaj.zone 10 points 3 months ago* (last edited 3 months ago)

also the same artist behind the "i guess you ain't black" meme

[-] PhlubbaDubba@lemm.ee 5 points 3 months ago

Melanin Vampire Brandon gonna get y'all if y'all don't vote this year!

[-] nicknonya@lemmy.blahaj.zone 9 points 3 months ago

i wish biden was half as cool as conservatives make him out to be

[-] A_Very_Big_Fan@lemmy.world 1 points 3 months ago

It's a comic by a right wing nut

It seems like prime satire material but at this point I wouldn't doubt this.

[-] fossilesque@mander.xyz 19 points 3 months ago

I'm pretty sure it's some crazy right-wing artist, which kind of makes the edit even funnier, IMO.

[-] xantoxis@lemmy.world 10 points 3 months ago

I recognize the art style and so I know that this is a bigot's comic, originally. I humbly request that you don't elevate this bigot's comics. Even if you're changing the words, it still puts him in front of more people.

[-] fossilesque@mander.xyz 28 points 3 months ago* (last edited 3 months ago)

After growing up around people like this, I prefer to bully and ridicule other bullies and bastardise their work. Public shaming is effective and they lose agency over their own hateful tools. Ignoring problems doesn't work, they are a festering disgusting wound. Make them the joke they are and I encourage others to warn others what they are. They are fundamentally insecure, weaponise their own bullshit back at them.

[-] xantoxis@lemmy.world 6 points 3 months ago* (last edited 3 months ago)

Public shaming is effective

This isn't public shaming. The original creator didn't make this version of the comic and has no responsibility for it.

Had you ever heard of stonetoss before people started posting his shit to "publicly shame" it? Well, neither had thousands of chuds who probably read it every day now.

[-] AVincentInSpace@pawb.social 9 points 3 months ago

funny how the "sTeVeN cRoWdEr dOeSnT dEsErVe A mEmE fOrMaT" crowd are never up in arms over this

[-] InFerNo@lemmy.ml 20 points 3 months ago

Because you're NoT eXpLaiNiNg why and nothing about this image implies anything to be up in arms about. Just say why and clear things up.

[-] melooone@feddit.de 4 points 3 months ago

The original comic is by George Alexopoulos. He is right wing and has drawn some questionable comics. Source

[-] AVincentInSpace@pawb.social 4 points 3 months ago* (last edited 3 months ago)

Here is the original image.

Comic, as the one in the post, only the book is the Bible, the daughter says "God bless you, dad!" through a faceful of tears, and the father replies "Hailey! Go get pregnant and have an abortion right now!" as she runs off crying.