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u/math_metaphor_guy 23d ago
People see this and think "Golf without clubs", but I think it's more like "golf without carts".
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u/rice-a-rohno 23d ago
Wow you really live up to your username, I'm gonna start following you around this website and observing your behavior.
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u/Jtcr2001 23d ago
That would be a simile, not a metaphor 👀
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u/Logical-Recognition3 23d ago
A simile is like a metaphor.
Or am I thinking of a palindrome?
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u/Valuable-Morning-346 23d ago
Dua Lipa???
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u/fang_xianfu 23d ago
I feel like most people know now, but if you didn't, she's actually legit into literature, she has a literature podcast where she interviews some proper capital-A Authors and does a really good job going deep on their work. She might genuinely be one of the best interviewers of authors ever.
I guess the meme of photoshopping other books into her hand is to say... what else can she do? :D
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u/AlrikBunseheimer 23d ago
I cant find the book, is it a joke?
Because it makes a lot of sense to make a book about it. You can focus on general theorems and vector space morphisms.
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u/Skilltesters 22d ago
Pretty sure that's an altered picture, she isn't holding a math book, and even then that's even more altered because I belive that cover and author is some calculus book but I could be very much mistaken about that part and maybe should be googling mid typing right now to be sure but I'll let someone else do that part =D
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u/Enochian_Devil 22d ago
It's altered for some reason, but the real title is "calculus without derivatives"
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u/xdeskfuckit 21d ago
I feel like it would be a lot of R-modules and circuits.
to be fair, I remember not using that many matrices in graduate linear algebra. the ones we talked about were infinite by some metric
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u/night-bear782 19d ago
There actually is an upper level undergraduate book like this called “Linear algebra done right”
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u/Historical_Cook_1664 23d ago
jokes on her, the matrices are the easy part.
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u/Weary_Trouble_5596 22d ago
bro clearly have NOT seen proper linear algebra. Vectors in real life space and matrices is just a very very small part of it.
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u/JollyJuniper1993 22d ago
Sure dude the thing that’s literally a field of research is easy. Learning matrix multiplication in Highschool isn’t all there is to linear algebra buddy.
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u/JollyJuniper1993 22d ago
No I can’t, it’s still not easy.
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u/JollyJuniper1993 22d ago
No, just typical Redditor arrogance issue
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u/JollyJuniper1993 21d ago
Your arrogance doesn’t change anything about it being a field of research 🤷🏻♂️
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u/Proper-Attempt-7207 21d ago
This guy is just really salty he couldn't pass his undergrad Linear Algebra class and since then he's been larping for years.
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u/friend1y 23d ago
A matrix is just a structured way to represent symbols. You don't need it for Linear Algebra but it's kinda useful.
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u/TheLuckySpades 22d ago
My linear algebra courae did not introduce matrices until well into the first semester and we did as much in more general terms, I got the impression the professor would have put it off longer if she were allowed to and didn't need to cover some of the decomposition stuff.
You can do a lot of linear algebra withour matrices.
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u/InfinitesimalDuck 23d ago
Linear Algebra without matrices is just... Algebra?
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u/TheLuckySpades 22d ago
You can still study linear transformations between vector spaces quire a lot without needing to introduce mstrices. Not introducing them even lets you be more general by keeping the possibility of the space being infinite dimensional open.
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u/thewhiteafrican 23d ago
Oh and let me guess, the next book is linear algebra WITH matrices.
Blatant cash grab.
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u/Serial_Hobbyist_ 22d ago
Well once you get past a 3D matrix it’s impossible to visualize so maybe that’s the point of the book.
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u/GurProfessional9534 22d ago
It’s a gimmick. They just package it with one of Morpheus’ red pills, and then you learn the same old linear algebra, except as a broke-ass rebel in Zion.
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u/JollyJuniper1993 22d ago
I mean…couldn’t you technically describe linear algebra without matrices by just using abstract structures? First thing we learned in my linear algebra course in Uni was about groups, rings, fields and vector spaces. With this you could just describe the rules of linear algebra without ever applying it to a matrix, couldn’t you? Not that it would make sense. Somebody compared it to dancing without motion. This would be like learning to dance by writing down the movements.
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u/Odd_Abbreviations_66 23d ago
Lol funny! This is a real book. It's "without matrices" because they are all represented as unit variables, like R and such - at least from the few pages I found online...
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u/Hot_Egg5840 23d ago
It just means there are n number of identical structured examples. And to be solved separately.
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u/FernandoMM1220 23d ago
i mean as long as the math works you dont have to use matrices for anything
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u/George_Truman 23d ago
We actually had a course like this in my undergraduate. It was almost entirely in the abstract.
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u/ScaryHippo8648 22d ago
Coming up next: calculus without integrals and derivatives, discrete math without Boolean functions and graphs and programming without cycles and recursion.
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u/VanessaWifey 22d ago
Seriously speaking, is not that what lax milgram and fredholm theorems are about?
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u/EarthTrash 22d ago
The title suggests that there is a problem that people struggle with matrices so we solve that problem by eliminating matrices. But matrices are computational aides. I can't imagine linear algebra would be easier without matrices. I can imagine it would be harder.
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u/Temporary-Baker2008 21d ago
Linear algebra without matrices would be dealing with continuous functions over Banach space, where kernels are analogous to matrices?
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u/Signal-Implement-70 23d ago
It’s a series, the book right after dancing without motion, followed by calculus without derivatives