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Archived threads in /sci/ - Science & Math - 2069. page

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Recommend introductory combinatorics textbook for self-study (with full or partial solutions for odd-numbered exercises at least).
One of the aims (not general) is a better understanding of setting up unconditional probability problems.
25 posts and 7 images submitted.
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It's a big book. But it is like Steward for Combinatorics (perfect for beginners).
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>>7727557
>It's a big book
for you
>>
>>7727557
Thanks, man, but I have read Epp's Discrete Math. Now I'm reading Koh/Chen's "Principles and Techniques in Combinatorics" but it have a disorderly problem set without dividing on (sub)chapters and doesn't deal with some topics like Polya counting, etc.

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why, in humans, are large butts and Lordosis Behaviour so arousing when these features aren't observed in other primates?
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What are you talking about if anything it's less pronounced
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>>7727097
chimps and gorillas don't do that though

fuck that baboon thing.
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>>7727086
Excessive lordosis isn't appealing though.

Why are cat ears attractive? Why do people want to fuck greys, if they're in the right mood? Humans will screw anything that fits a certain set of criteria. Humans will sexualize inanimate objects that have no discernible relation to the human form. Though those might act as fetishes.

It's a multifaceted deal.

Why not artificially breed human embryos and genetically modify them to have progeria and study them to cure aging? If you breed a human species that lives the span of a fruit fly, I'd say you could cure aging fairly fast. Thoughts?
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>>7725473

Because it is unethical. However, you could try moving to China and doing it, or building a secret lab in outer space.
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>>7725473
too expensive. Babies take too long to mature.
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>>7725473
Do it in rats first.

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you should be able to calculate the volume of the unit tetrahedron without help, if you're a real mathemati/sci/an
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Oooh, I remember this problem from my Applied Triple Integrals class.
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>>7716821
The area of an equilateral triangle of side length x is (x^2)*sqrt(3)/4, so, integrating along the altitude gives you sqrt(3)/12.
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>>7716856
SHAME

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What do we use supercomputers for?
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Weather forecast
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Eroge.
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>>7730918
Calculations that are incredibly massive, which can range from realistic graphics simulations (Read the Wiki article over the topic Fast Inverse Square Root), to weather forecasts, to population analysis and pattern recognition.

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How do you prepare yourself for exams? :^)
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I avoid courses with exams
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>>7730677
Read the course reading. Do practice problems.
>>
Depends on how much I struggled with the material throughout the semester.
Full review for anything with subpar regular exam scores, with a focus on the topics covered by those poor exams.
Something like Chem deserves a full review, whether you think you need it or not, but I honestly didn't have enough time for that this month. It had to take a hit for some math and physics review. I might have just barely gotten a rounded A in the course, if I had scored perfectly on that exam.
The last thing that you want to have rusty concepts for is Calc. You might be able to get by in Physics, but the exam grade won't be anything stellar.
>>7730680
Self-learner, or are you a grad student who gets those lovely "take home exams" that I've heard about?

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>al-oo-min-ee-yum
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Al-u-in-me-mum m8?

i told u shes me mum an u cant be porkin er m8

i swear bruv
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>>7728085
I'll-be-in-ya-mum
>>
The phrase is 'repeat after me', Bernd.

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Finals rage thread
>just took calc 2 final
>trying to prove convergence/divergence of a series
>try limit comparison test
>limit comes out to be 2/3
>my stupid fucking brain thought that the series converged if the limit > 1 instead of 0
> 2/3 < 1 so I'm like wtf it failed
>try regular comparison test
>obviously doesn't work
>running out of time, just write some shit about the tests failing and that that series diverges, even though it makes literally no sense
>I realize my mistake literally as I am walking out the door
WHAT THE FUCK IS WRONG WITH MEEEEEEEEEEE
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Git gud, scrub.
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>>7727118
I am literally suicidal right now, please don't push me over the edge.
>>
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Just got out of my calc III final

>optimization problem that was hard as fucking nails and math got ugly so gave up even though I was doing it right

>Used Stoke's theorem to find flux on a problem because I'm wee Todd Did

>Got two different answers on the other problem when I was just supposed to verify the answer

fug

So much for getting a B in calc III. You would never know I took calc III at another uni and got an A in it.

Man, fuck University of Colorado's applied math department.

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Read Up:
http://krieger.jhu.edu/msh/2015/01/22/new-major/

ITT We discuss the importance of taking extra humanities courses in addition to typical pre professional science courses (Pre-med in this case).

My School is considering this idea as well, but I don't know what it would mean for premeds. It looks like more courses as students would learn two disciplines and cram in required courses to be eligible for a post grad. It seems like a good idea for lawyers and ethics professors, though.

However, the article mentions core classes tailor made for the medical field. This might mean taking specialized humanities courses instead of the typical core humanities most of us take. Or it may mean in addition to those courses, we take special humanities.

Would any Uni-goers here be interested in this?
What would be your concerns or what attracts you to concentrating on both science and the humanities in an undergrad program.
74 posts and 8 images submitted.
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>>7722744

Science may tell you how to clone a T-Rex.

Science tells you what a T-Rex is, and why it could be a bad idea to handle its kid improperly.

Science could tell you how to handle T-Rex specimens.

Humanities use concepts and tools discovered and/or invented by science and try to feel relevant when they are not.
>>
>>7722744
>What would be your concerns or what attracts you to concentrating on both science and the humanities in an undergrad program.
I would be concerned about having to completely waste my time taking humanities courses.
>>
OP here playing devil's advocate.

>>7722780

Charles Weiner believes the sciences and humanities have become separated to the point that

"...future physicians must be more humanistic with additional skills in critical analysis, communication, and teamwork. The new MCAT being introduced this year addresses these cultural changes. The expectations of incoming medical students are becoming much broader to include cross-cultural studies, ethics, philosophy, and a range of humanities studies—all with the goal to produce more well-rounded physicians.”

This is from the JHU article. Also from the guy heading the new major.

>>7722803

This would totally mean more hours and money.

But I think the humanities are great. I don't mind literature and history and learning another language. I could see reading about cases where science has been questionably ethical. I could also see this program as a way for researchers to work towards publishing their papers.

This just seems like a formal major saying you'd be good at international relations.

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Why are people still skeptical about climate change
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Because you cannot fool all of the people all the time.
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>>7716353
the politicians who are "skeptical" arent really skeptical. they have an audience/voter to cater to. those voters and their communities are the ones involved in and have jobs in oil, coal and natural gas; all the white trash hillbilly white folk who are retardicans. they have to take the opposing side to stay in power.
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>>7716380
>Nobody important actually disagrees with me, they're just pretending to.

Pretty sure Cruz and others truly do not believe it.

To be honest I don't think it's as alarming an issue as it was talked about. Warming hasn't been occurring at the rate scientists were once predicting. Not even close to it.

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Hey /sci/

It's a code to make a pattern from your name

http://codepen.io/jagarikin/details/YwyGgd

Lets try
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>>7715379
>>
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>>7715379
Eh
>>
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GDubu

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https://sites.google.com/site/scienceandmathguide/
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If you want advice regarding college/university or your career path, go to /adv/.

>>>/adv

Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework. See the rules page for details.

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I'm in local politics. Tell me about windturbine energy.

Are windturbines economically viable / profitable ?

Are they efficient?

Can they still be improved?
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No, go with nuclear. Or invest in tidal power
>>
the good
>they can take the load of some powerplants

The bad
>ugly as fuck, destroys the view of landscapes
>it cant work without wind
>too much wind can burn it out
>very high price to build it
>it has a lot of materials that are probably from china where they dont give a fuck about nature
>it cost a lot to maintain it.


Nuclear is still the only real solution to all our problems.
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>>7728978
Solar would be a better investment.

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I am in awe of the universe and mind-fucking brick-shitting quotes like this one, sci.

I want to know more.
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>>7727897
Oh man, please fuck off. I don't think I can take this anymore.

And take your fucking meme science man with you
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>>7727910
You challenge the wisdom of Niel? Be gone heretic.
>>
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>>7727913
He's literally fucking brainlet

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>4030/2
>still using MATLAB instead of Python
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>>7727220
>I compare a general purpose, slow to execute, fast to code, super high level language to a specific purpose, lower-level, matrix-computation optimized language unironically

kill yourself desu senpai
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>>7727226
Not OP, but it's well known that Python's array capabilities are only slightly slower than Matlab while Cython optimized array calculations (which most scientific distros of Python have built into the interpreter) are much faster than Matlab.

Also Python is faster to code in general.

I love MATLAB, but there is a good reason that Academia is jumping ship to Python.

Also we're all freetards by heart.
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>>7727220
>White space sensitive

Into the shitter it goes

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