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Linear Algebra Review by Alice Finkinman - Mon, 27 Apr 2015 02:23:31 EST ID:AOEV1QdK No.14706 Ignore Report Reply Quick Reply
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I took a linear algebra class years ago and want to review. I have Axler's Linear Algebra Done Right and really enjoy it, but I want something with more applications and exercises to go along with it.

Suggestions? Online or texts
1 posts omitted. Click Reply to view.
>>
Reuben Chacklefield - Sun, 17 May 2015 07:09:03 EST ID:WtAxPZi7 No.14735 Ignore Report Quick Reply
Gilbert Strang is pretty cool, he teaches Linear Algebra. Here's the playlist for all his lectures: https://www.youtube.com/watch?v=ZK3O402wf1c&list=PL41A1C92F1766D4AB
>>
Shit Subberfoot - Fri, 29 May 2015 04:55:00 EST ID:HKah9GEZ No.14760 Ignore Report Quick Reply
If you really want to go deep inside Linear Algebra I suggest you study a little of Abstract Algebra. I used Fraleigh, it's a good book, you can find it online as a .pdf. With Abstract Algebra you will gain a deep knowledge about algebraic structures, such as groups rings and fields (as well as he other intermediate structures), and trust me Linear Algebra will become clearer. After that you will be able to go deeper into whatever you want, for instance Non-Linear Algebra or Group theory.
>>
Fuck Chorryford - Fri, 29 May 2015 10:00:06 EST ID:/JY7Oqfv No.14761 Ignore Report Quick Reply
Linear Algebra by Shilov
>>
Esther Binderford - Sat, 30 May 2015 12:40:05 EST ID:V731xQnT No.14763 Ignore Report Quick Reply
>>14707
Lax is the one I just used for my class this spring. Pretty good book, easy if you have a basic understanding and use it in cojucntion with internet tutorials to refresh. LOTS of practical uses for the material
>>
Hannah Blittinglit - Mon, 24 Apr 2017 21:48:51 EST ID:jVVag+L0 No.15489 Ignore Report Quick Reply
>>14706
work through every problem in linear algebra done
do some abstract algebra along the way
good luck


What is the theory of Equality by E - Thu, 20 Apr 2017 09:52:31 EST ID:LbDKCfts No.15477 Ignore Report Reply Quick Reply
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I wrote this program the demonstrate my idea, http://faceclicker.com if it the wrong theory please discuss


What's your power level? by William Drenkingold - Thu, 01 Dec 2016 01:21:19 EST ID:I4oaqfW8 No.15281 Ignore Report Reply Quick Reply
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I'm new to this site and it struck me as pleasantly surprising that there's a whole set of science&math boards. I am however rather skeptical about the average level of education here, so let's make a little survery:

  1. Age
  2. Degree
  3. Specialty
  4. Dream job/profession
  5. Plans for the near future and long term strategy
16 posts and 5 images omitted. Click Reply to view.
>>
John Drarrypon - Sun, 19 Mar 2017 15:09:40 EST ID:c0vo/Lfo No.15424 Ignore Report Quick Reply
>>15423
You shouldn't be paying for graduate school in anything technical. They should be paying you to teach and covering your tuition.
>>
Phineas Chacklestetch - Sun, 09 Apr 2017 02:31:07 EST ID:vrOFV9fT No.15462 Ignore Report Quick Reply
>>15285

I am at the end of an algebraic topology course right now, and my professor doesn't make much sense. I think I understand homology and cohomology pretty well, but spectral sequences have really fucked my brain. Since it's your area, do you think you can recommend a survey paper or something on it.

Other topics in algebraic topology have useful applications. Why should I give a shit about spectral sequences? Of course they are a generalization, but it seems it only has use for higher homotopy groups and etc.

Why should anyone outside of mathematics care about higher homotopy groups? They are notoriously difficult and at least to this day don't have the same applications that their homological counterparts enjoy.
>>
Phineas Chacklestetch - Sun, 09 Apr 2017 02:42:19 EST ID:vrOFV9fT No.15463 Ignore Report Quick Reply
>>15423
>>15424

This. If you get admitted you should get a teaching position with a survival wage. I am paid 20,000$ a year with tuition and health insurance free, and 100 students.

I could get more if I were to quit early and get a masters degree
>>
Fuck Billingfoot - Wed, 19 Apr 2017 19:41:06 EST ID:oXSM8l4D No.15476 Ignore Report Quick Reply
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>>15281
  1. 25
  2. Finance
  3. Real-Estate Finance
  4. Professional Investor
  5. Having a hot wife that loves me and a large bank account.

I'd also like to point out that your inquiry means very little, as even the smartest of men at one point were nothing.
>>
Doris Bangershaw - Fri, 02 Jun 2017 03:11:28 EST ID:y3TGqPb4 No.15519 Ignore Report Quick Reply
>>15476

>Having a hot wife that loves me and a large bank account.

Women are incapable of love, except for themselves and their biological children.

If you have a sufficiently large bank account, however, you can easily convince one to pretend to love you. That's quite common.


Volume optimization? by Duffman - Sun, 09 Apr 2017 11:19:17 EST ID:Rhgh4/nK No.15464 Ignore Report Reply Quick Reply
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How does one go about doing these problems? are there formulas I'm missing for this? My professor covered this in the last 5 minutes of class and he was pretty unclear.
>>
Henry Mondlechot - Sun, 09 Apr 2017 14:54:04 EST ID:pPgJY+De No.15465 Ignore Report Quick Reply
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Does this help?
>>
George Pittway - Sun, 09 Apr 2017 15:00:05 EST ID:Rhgh4/nK No.15466 Ignore Report Quick Reply
>>15465

Yes, Somewhat. Thank you


Ncea Level 3 calculus Help by David Bellamy - Sun, 26 Mar 2017 03:46:39 EST ID:yAgFpYsL No.15435 Ignore Report Reply Quick Reply
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I need help with bloody conics
>>
HazeyNZL - Sun, 26 Mar 2017 04:02:02 EST ID:v+/egmbA No.15436 Ignore Report Quick Reply
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DICKS EVERYWHERE
>>
Ernest Binningstidge - Sun, 26 Mar 2017 10:59:32 EST ID:KW3RHxlP No.15437 Ignore Report Quick Reply
What have you tried? You can't just come to someone and ask for help without doing anything. We're not going to teach you the whole course here, since there are numerous places online you can learn these things.
>>
Henry Fattingdodge - Tue, 28 Mar 2017 21:15:01 EST ID:AvE/EBRJ No.15438 Ignore Report Quick Reply
Your friend looks like a fag, and underaged, so you probably are twice both. Ask a fucking question next time.


Watch my set please by Basil Fussletut - Fri, 18 Nov 2016 11:24:03 EST ID:FFd5rNZG No.15275 Ignore Report Reply Quick Reply
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Hey /math/, can you guys watch my set for me? I'll be right back.
13 posts and 6 images omitted. Click Reply to view.
>>
Ebenezer Genkinnadge - Thu, 12 Jan 2017 14:29:49 EST ID:jD/Lrc1O No.15322 Ignore Report Quick Reply
>>15321
Both of those systems you mention seem to be exploiting the idea of different "levels" of sets, which sounds like a type-theoretic way of dealing with the problem to me.
>>
Augustus Bambleson - Thu, 12 Jan 2017 19:13:32 EST ID:zauFrAWR No.15323 Ignore Report Quick Reply
>>15322

Yeah, there are different "types" of objects, but often times it's not apparent what a given object is. From this perspective you could make an argument that every set theory is a type theory, with just one type in consideration, which seems to obfuscate what distinguishes what is considered type theory as opposed to something else. In type theory you know exactly what sort of element you are dealing with, while this might not be the case in set theory.
>>
Caroline Burringfoot - Thu, 23 Mar 2017 03:22:14 EST ID:zYLZ69Gw No.15432 Ignore Report Quick Reply
>>15275
no, fuck sets
>>
Thomas Derringbock - Thu, 23 Mar 2017 10:27:39 EST ID:2BTsxPZ9 No.15433 Ignore Report Quick Reply
>>15432
What do you advocate instead of sets? Topoi or some new-fangled nonsense?
>>
Nigel Nublingstock - Fri, 24 Mar 2017 01:19:20 EST ID:vrOFV9fT No.15434 Ignore Report Quick Reply
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>>15432

fuck you


Measuring turds by Jarvis Smallford - Tue, 21 Mar 2017 20:36:07 EST ID:Yl5i51yi No.15427 Ignore Report Reply Quick Reply
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Ever wanted to be able to find the volume of your weirdly-shaped poops through a mathematical model? Try Calculus! Thanks, Newton and Leibniz!
>>
Basil Gunningfutch - Tue, 21 Mar 2017 22:28:39 EST ID:2BTsxPZ9 No.15428 Ignore Report Quick Reply
No love for Archimedes in here I suppose.
>>
Molly Poffingbury - Wed, 22 Mar 2017 19:55:35 EST ID:LCy6AKHb No.15430 Ignore Report Quick Reply
>>15428

Do not disturb my circles.


Dabble by Hugh Wicklelatch - Tue, 21 Mar 2017 08:41:37 EST ID:6dRMI9a4 No.15425 Ignore Report Reply Quick Reply
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I have hardly a basis for math and forgot most of it anyway.
I'd like to get my math level a bit up, it seems like fun now

How do i start?
>>
Fanny Dommlestock - Tue, 21 Mar 2017 09:13:09 EST ID:1If8Lhdp No.15426 Ignore Report Quick Reply
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Get a textbook, read it, and do the exercises. You can also do online courses. Even though it's not arithmetic I would recommend doing a basic logic textbook since it's fun and important for mathematical reasoning. Math is some kind of meta-language, so you will advance faster if you have people you can talk to about it. In person is probably better than online, but even that is great. You can check out mathexchange or just post whatever you're thinking about on here.


how i relearned erry mathsz by Lydia Lightshit - Fri, 05 Feb 2016 02:37:19 EST ID:mVsq12K/ No.15040 Ignore Report Reply Quick Reply
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Everyday before work, I woke up 2 hours early and forced myself to read/do exercises of the following books. (this later became 3 hours). I averaged 3 books per month if they were survey books, and about 1-3 months for a rigorous book. This became an easy routine after the first week, and I'm still doing this.

>1) Daily Rituals by Mason Currey
https://books.google.ca/books/about/Daily_Rituals.html?id=hA-MoAEACAAJ
This is where I got the idea of making a routine from, it's a survey of historical artists, philosophers, scientists ect who all had a routine in order to get work done consistently. Franz Kafka would split his sleep up into 2 section in order to fit in work beside his regular office job.

>2) Basic College Mathematics by M. Lial et all
https://books.google.ca/books?id=ucUDMAEACAAJ&dq=basic+college+mathematics
As mentioned before in here this covers elementary school and Jr. High math basically. You can just survey this for the most part (not do any exercises) unless you don't understand something, then do the exercises. Took 3 days to survey this. When I later took Harvard's CS50 computer science course, the first lecture about Binary numbers directly was related to this book's first chapter on whole numbers. I torrented this book.

>3)Basic Mathematics by Serge Lang
https://books.google.ca/books?id=gBtvo480ng4C&dq=basic+mathematics
I got out the notepaper and did most of the exercises by hand. This was all focused on reasoning, why is this true, how do we prove this is true, ect. This book teaches you so well that applied calculus is your bitch afterwards. I torrented this book too since author dead, copies are like $80 on amazon.

>4)Introduction to Mathematical Reasoning by Eccles
Comment too long. Click here to view the full text.
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George Honningham - Sat, 14 Jan 2017 20:50:27 EST ID:pPw7QUKx No.15324 Ignore Report Quick Reply
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>3 books per month
How do you do that? I've been reading A book of set theory by Charles C. Pinter for about six months and have only read the first 70 pages. Some of the excerces took me days to solve them, and after two months i could finally understand the resolution of the Russell's paradox. However, I've reading it over and over again until being pretty sure my proofs of every single problem are indeed proofs.
>>
Frederick Wicklesadging - Wed, 18 Jan 2017 12:25:37 EST ID:bkgMqk62 No.15326 Ignore Report Quick Reply
>>15324

That's a slow pace, but good. I think if you are reading three math books in a month you are missing a lot of details. It took me a year to read Shoenield's mathematical logic and I have been reading Kunen's set theory for a year nearly and I'm only half way through. Shit takes time.
>>
Emma Drundlestock - Mon, 06 Feb 2017 13:38:21 EST ID:0v0QG0m/ No.15330 Ignore Report Quick Reply
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>>15326
>That's a slow pace,
Yes, I know it. That's because I got my bachelor degree in maths but never studied it seriously until now, that I have noticed my lack of foundations; and it's because of that that I don't go on unless I'm pretty sure I have solved and understood every single part of the text and the problems, specially set theory and logic, wich are basic for all mathematics. Solving all the doubts arising when studying mathematics is a very important part of our study routine if one really wants to understand them... and it's probably the most tedious part.

>Shoenield's mathematical logic
I'd swear it was a model theory book. I remember I didn't buy it due to that, and bought Richard E. Hodel's An Introduction to Mathematical Logic instead.
>>
Jarvis Pessledale - Tue, 14 Mar 2017 17:19:17 EST ID:ueMHQ1BO No.15419 Ignore Report Quick Reply
>>15040
sick, now read a Math physics textbook and become a god
>>
George Blatherbanks - Sat, 18 Mar 2017 16:35:05 EST ID:ck7N7PYR No.15422 Ignore Report Quick Reply
Frankel's The Geometry of Physics: A very good way to learn what modern geometry tastes like.


Maths is cool n shit by Straid Of Coolaphis - Fri, 28 Oct 2016 20:21:44 EST ID:g2pPf6fA No.15254 Ignore Report Reply Quick Reply
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Can we have a maths party thread moderators? Because maths is cool and shit.
6 posts and 4 images omitted. Click Reply to view.
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Fuck Tillingway - Tue, 21 Feb 2017 11:32:41 EST ID:j58znr37 No.15342 Ignore Report Quick Reply
>>15341
Are you trying to start shit m8?

Category theory is the new set theory, it's fucking foundational.
>>
Phyllis Fuvingbury - Tue, 07 Mar 2017 00:21:23 EST ID:vrOFV9fT No.15415 Ignore Report Quick Reply
>>15342

Nobody cares about the Yoneda Lemma and it's NONSENSE to think that a monomorphism might not be injective!!! Trash category theory go home!!!!
>>
Archie Cenderhood - Tue, 07 Mar 2017 10:03:55 EST ID:+wJbtIkG No.15416 Ignore Report Quick Reply
>>15415
Have fun remembering fifteen different definitions of some uiversal construction which are all actually the same thing in different categories. Do you enjoy clogging your brain with extraneous nomenclature? (Please, no jokes that this is all that math is.)
>>
Priscilla Brellydale - Tue, 14 Mar 2017 16:56:33 EST ID:0IIhzQOQ No.15417 Ignore Report Quick Reply
So what do you guys think about Hodge theory?
Is the hype over?
>>
Shitting Huddlehan - Thu, 16 Mar 2017 14:35:45 EST ID:vrOFV9fT No.15421 Ignore Report Quick Reply
>>15417

Homology is bullshit, cohomology is bullshit. The only reason people care about that stuff nowadays is for some data analysis purposes, so that means people are interested in actually computing homology groups of spaces rather than this deeper stuff. The only people that care are topology nerds.


Connection between graphs and differential equations by Jarvis Pessledale - Tue, 14 Mar 2017 17:17:53 EST ID:ueMHQ1BO No.15418 Ignore Report Reply Quick Reply
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YO WUT IS UP!?
I am curious if anyone knows how to represent differential equations as a graph? I acknowledge that that sounds absurd, but I am curious, I know you can represent a graph via tutte polynomial, so I figured it's not too much of a stretch.
>>
Doris Billingforth - Tue, 14 Mar 2017 17:56:07 EST ID:zpTgkQCY No.15420 Ignore Report Quick Reply
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What do you want exactly? It's not absurd to ask for something as a graph since graphs, like most kinds of mathematical structures, are expressive enough to encode anything you want to do.

A given differential equation will give rise to a dynamical system right? Like if I give you a point the differential equation can tell me the derivative(s) at that point. These derivatives are instantaneous rates of change, but you can imagine for each point in your space following the corresponding tangent vector for a certain time t. If your space is over the reals you will obtain an uncountable family of uncountably infinite combinatorial graphs which vary with t. Maybe you can study the corresponding operators? It looks like the sequence tends to the identity but the way it changes might encode information about your solutions.


Restricted movement by Ian Cinderworth - Sun, 26 Feb 2017 18:58:58 EST ID:ncb8UBjg No.15412 Ignore Report Reply Quick Reply
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I like to ask here, because it's chill here and I the thought of citing /math/ on my bachelor's amuses me.

Pic illustrates a truck with a trailer, reversing in a clockwise circle. The axles are illustrated with a green wheel on the end of each radius.
The axle on the trailer can be steered.
Suppose the wheels on the trailer are turned slightly, creating a new radius and triangle shown in blue.
So after the truck has reversed for a bit, shown in pink, I think the trailer would move like shown, with the triangle intact, dragging it's point C along the "old" radius of the truck rear axle. (Old being the instance where the new angle of the trailer wheels were established)
My questions are: Do I reason correctly? and How does the angle B in the yellow triangle change, according to the trailer wheel angle, the trucks turning circle and distance traveled? You see, I'm interested in the point where yellow A an B are equal.


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