Mathematician Chat V.floor(π) - General

[QUOTE=ThisIsTheOne;43710462][url]http://genealogy.math.ndsu.nodak.edu/[/url] It's really cool seeing that the supervisor of the supervisor of the supervisor of the... (15 times over) of your lecturer was Gauss or Leibniz[/QUOTE] Yes it is! I just found out that my real analysis professor's advisor's advisor's advisor's advisors were Weierstrass and Kronecker the other day. [editline]29th January 2014[/editline] Damn, and my topology professor is math-descended from Lagrange, Laplace, more than one Bernoulli, and Euler.

Hey, if I went here and had him as my advisor, [I]I[/I] could be math-descended from Euler!

I think I'll pick my supervisor based on their maths ancestors, just so I can say Gauss or Euler has essentially supervised me.

that sound like a recipe for success [editline]2nd February 2014[/editline] You should also make sure you declare to everyone that you are the reincarnation of Gauss

"I bet I have a few germs on my hand that descended from Gauss' hand/ball sack germs"

Does anyone have some helpful tips/resources for gaining intuition towards combinations & permutations? Everything I've read so far covers the basic differences & formulas, but doesn't delve into how to approach more complicated problems. A good example from my book is the probability of choosing a pair out of a bridge deck. The answer is C(13,2)*C(11,1)*C(4,2)*C(4,2)*C(4,1)/C(52,5). The book explains it thusly: You can choose 2 denominations out of the 13 available denominations (these form your 2 pairs), then 1 denomination out of the remaining 11 (this is 5th card), then there are 2 cards out of the 4 in the 1st denomination, 2 cards out of the 4 in the 2nd denomination, 1 card out of the 4 in the last denomination. I don't understand why some of those combinations are needed, or why they can do C(13,2)*C(11,1) but not C(13,1)*C(12,1)*C(11,1) -- choose your first denomination, then your second, then your third. I'm not asking for an explanation of this specific problem, I'm trying to understand how to actually work through these problems. I've never been so confused, and this is coming from someone who just passed abstract algebra.

Differential equations exam tomorrow. My shit is so fucked

[QUOTE=Dvd;43769783]Does anyone have some helpful tips/resources for gaining intuition towards combinations & permutations? Everything I've read so far covers the basic differences & formulas, but doesn't delve into how to approach more complicated problems. A good example from my book is the probability of choosing a pair out of a bridge deck. The answer is C(13,2)*C(11,1)*C(4,2)*C(4,2)*C(4,1)/C(52,5). The book explains it thusly: You can choose 2 denominations out of the 13 available denominations (these form your 2 pairs), then 1 denomination out of the remaining 11 (this is 5th card), then there are 2 cards out of the 4 in the 1st denomination, 2 cards out of the 4 in the 2nd denomination, 1 card out of the 4 in the last denomination. I don't understand why some of those combinations are needed, or why they can do C(13,2)*C(11,1) but not C(13,1)*C(12,1)*C(11,1) -- choose your first denomination, then your second, then your third. I'm not asking for an explanation of this specific problem, I'm trying to understand how to actually work through these problems. I've never been so confused, and this is coming from someone who just passed abstract algebra.[/QUOTE] Khan Academy has a good series on it.

We're getting through taylor series and all that in class and I went to read a paper on simulating charged particles with less with less than O(N^2) complexity and I was actually able to understand like 75% of the weird series shit they were doing. Neato

[QUOTE=ZenX2;43792036]We're getting through taylor series and all that in class and I went to read a paper on simulating charged particles with less with less than O(N^2) complexity and I was actually able to understand like 75% of the weird series shit they were doing. Neato[/QUOTE] I'm told physicists use Taylor series a lot.

[QUOTE=Falubii;43792320]I'm told physicists use Taylor series a lot.[/QUOTE] all the fucking time A mathematician is a device for turning coffee into theorems A physicist is a device for turning beer into approximations

[QUOTE=JohnnyMo1;43792341]all the fucking time A mathematician is a device for turning coffee into theorems A physicist is a device for turning beer into approximations[/QUOTE] So what does that make you?

[QUOTE=Falubii;43803963]So what does that make you?[/QUOTE] A device for turning coffee into beer

Going to get my first major exam results back in about an hour, should be fun. I'm hoping for 90%+ in the pure module exam and at least 70% in the probability exam I hated. Also I just found out that even though one of our modules has a matlab coursework (albeit only 5%) but they don't give us a student version for free. Maple was ass but at least I could write code in a terrible language from my bedroom for that. [editline]7th February 2014[/editline] Shit yeah 93% on an exam with 57% mean score

Definitely thought for a second that you were talking about [url=http://en.wikipedia.org/wiki/Module_(mathematics)][B]modules[/B][/url]. I'm gonna start a math-themed band. Any takers? I've been coming up with some names. The Lagrange Multipliers could work. I like Frobenius Morphism or possibly Chinese Remainder Theorem. My definite favorite that I've come up with though is Mrs. Hopf's Fibrator.

0 inch nails (mod 9)

I'd say it'd probably be better as 0 mod 9 inch nails but I bet nine inch nails might try to sue over that

If any of you are interested in becoming an Air Traffic Controller, the job is listed on USA Jobs. No aviation knowledge required. You must meet 1 of the 5 qualifications to apply. If selected, you will take a test based on logic, math skills, angles, and some general aviation things (reading gauges) [url]https://www.usajobs.gov/GetJob/ViewDetails/361350500[/url] (also posted in the engineering thread)

I think taking years of college to get a Ph.D in pure math would be less stressful than being an Air Traffic Controller.

[QUOTE=areolop;43855494]If any of you are interested in becoming an Air Traffic Controller, the job is listed on USA Jobs. No aviation knowledge required. You must meet 1 of the 5 qualifications to apply. If selected, you will take a test based on logic, math skills, angles, and some general aviation things (reading gauges) [url]https://www.usajobs.gov/GetJob/ViewDetails/361350500[/url] (also posted in the engineering thread)[/QUOTE] What is the monthly salary in this job ?^^Unbeliveable that you dont need any aviation knowledge o.o

[QUOTE=aehm ?;43856336]What is the monthly salary in this job ?^^Unbeliveable that you dont need any aviation knowledge o.o[/QUOTE] Once you're actually working, you're looking at over $10k a month. They'll teach you everything you need to know while you're at their academy in OKC

Why isn't everyone doing this job? Where's the catch?

[QUOTE=Number-41;43857597]Why isn't everyone doing this job? Where's the catch?[/QUOTE] Because that would just be a job. Some people want more than a paycheck.

[QUOTE=Number-41;43857597]Why isn't everyone doing this job? Where's the catch?[/QUOTE] Historically noted as one of the toughest jobs in the world. I think it has the highest suicide rate, but not sure. People who work it generally have a higher risk for heart disease.

[QUOTE=Code3Response;43857688]Historically noted as one of the toughest jobs in the world. I think it has the highest suicide rate, but not sure. People who work it generally have a higher risk for heart disease.[/QUOTE] Also they have very strict health requirements. My type 1 diabetes disqualifies me. Luckily nobody cares if a physicist is diabetic.

That 93 I got was the highest mark of the exam. Feeling good right now.

1+1=6

[QUOTE=Griffalo;43871190]1+1=6[/QUOTE] Messrs. Russell and Whitehead beg to differ.

[QUOTE=Griffalo;43871190]1+1=6[/QUOTE] You forgot to carry the 1.

What's the most boring name attached to a mathematical or scientific concept? Like the Jones' constant or the Smith tensor. It seems like I have to google every name and have it pronounced for me.