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https://sites.google.com/site/scienceandmathguide/
>>
Reminder: /sci/ is for discussing topics pertaining to science and mathematics, not for helping you with your homework or helping you figure out your career path.

If you want advice regarding college/university or your career path, go to /adv/ - Advice.

If you want help with your homework, go to /wsr/ - Worksafe Requests.

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Any data scientists around? I'm about 5 months in to my self-education in the field. I have a BA in computer science and I'm trying to augment my skill set so I can get away from full stack web dev and do more back end ML stuff.

I took the Andrew NG ML class on coursera and loved it. If anyone in the field is around, I'd love to talk about what I should study next.
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>>8322307

>machine learning

Is regression and classification AKA statistics.

>neural networks

Literally just using the chain rule. Are you seriously suggesting we need an entire new discipline created just because you're doing statistics + writing programs to solve basic calculus optimization problems by repeatedly finding the squared error of a known training set's answer's minus your network's answers and adjusting weighted connections based on their gradients with respect to the activation function you're using?
>>
>>8322325
You're absolutely on point with your response. Data Science isn't really it's own thing. It more implies the combination of statistics and more computer science type stuff.

I've heard similar arguments leveraged against calling Computer Science, Computer Science instead of mathematics.

Really it's pedantic to argue the purity of terms in my opinion. People use the word to describe a particular application of statistics, and it's very clear what is meant when we say data science.
>>
>>8322358
I've also heard people argue that everything is simply philosophy, but it should be clear why we use other words to describe subsets.
>>
Not really a data scientist since I have no Idea about programming outside of R, but I am a survey statistician. If you have questions I might be able to help
>>
>>8322400
Not him, but what was your degree in? I'm a bio/math double major with a statistics minor, but have no idea what I want to do yet upon graduation.

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Why do groups frequently behave in ways no individual person would behave (at least without being considered insane or very odd)?
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>>8321389

But how is it that people struggle to recognise group behaviour which is very odd or insane?

Clearly it is possible for groups to behave in those ways; and it is quite obvious when you see it. So why do many people not see it - or not say anything about it despite recognising it?
>>
>>8321393
they brainlets anon. most people are too stupid to think differently from the group for fear of social axclusion
>>
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>>8321393
Because, like I said, oddness of behavior is strongly dependent on how popular it is.

If you live in ancient Greece, and everyone but you worships Zeus, then you are the odd one out and they are the normal people. It doesn't even matter who is right in the matter. It's just impossible to "recognize" that some thing, which has become the norm, was abnormal, because those two things are contradictory to each other.

If you are speaking about small groups which have not become the norm, then of course we recognize their abnormal behavior. Take scientology as an example.
>>
>>8321381
Because humans belong in the trash.
>>
People aren't stupid, just misinformed or lack the ability to see the forest for the trees.

Look at Venezuela. The rural poor put their lot in with Chavez and Maduro in the hopes he would spend their oil wealth on social welfare, they were aware of the problems of previous regimes, but unaware of thee complexities of politics. How could they know? Most here on /sci/ haven't figured it out yet yet you are all middle classes with a lot of leisure time and internet to look this stuff up. What chance does an agricultural laborer living in poverty have?

They believed their poverty was unavoidable and Chavez was trying his best to change that. Most corruption is well hidden, naturally. Things are changing now as they grow tired of waiting and disappointments and the economic crisis deepens, though for many years they just simply didn't have the information available to reach that conclusion.

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I'm in college pre-Calc and want to impress my professor by asking a question about inter-universal teichmüller theory in class. What should I ask, /sci/?
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>>8315767
You almost had me
>>
what would "advanced pre-calc" be?
>>
>>8316570
Underage b&
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>>8315717
/thread
>>
>>8315767
Nice b8, m8

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explain this
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>>8322015

/pol/ is full of "spics"
>>
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>>8322382
You have no idea. There is so much white hatred in pol that white racists are a minority.
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>>8322222
>>
>>8321663
>developed nations have higher average IQs than undeveloped

Why is this surprising?
>>
>>8322404
Beautiful isn't it

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why are most scientists Christians?
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[citation needed]
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>>8322366
>why are most scientists Christians?
They aren't. Maybe in super-religious clapistan, but not in the world at large.
>>
>>8322395
I fixed protestant barbarians trying to get credit from catholic civilization achievements.
>>
>>8322398
>Catholic
>Civilization
Jesus is frowning at you.
>>
>>8322406
Nah I'm pretty sure he prefers people who didn't leave his Church.

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What would the view of the night sky from a planet in an elliptical galaxy really look like?

Would you be able to see the galactic center as a fuzzy point like this CGI snapshot?

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This illustration of what appears to be an ancient energy capacitor has intrigued me. What has interested me the most though, is the effect of gamma radiation in quartz. Quartz has a piezoelectric quality that generates electricity through deformation after being exposed to radiation.
I'd like to see any research or opinions on the matter

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Holy crap, I just noticed.

Is time just a combo of both imperial and metric?

You have even units of 10, with milliseconds and centiseconds, but you also have random numbers like 60 seconds to a minute and 24 hours to a day. What is going on?
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>>8320772
Babylonian time
>Imperial

Ok mate...

>>8320834
>Our clocks originate from a society which counted in base 12, (using their thumb to point to different segments of their other fingers, of which there is 11)

I'm so sorry anon, how did you lose a part of your finger?
>>
>>8322354
I am just about one nautical millimile tall. I approve.
>>
>>8322378
no, the key selling point of metric is the easy inter-convertibility of its units. 1 cm3 water = 1 mL = 1 g. 1 kcal heats 1 mL by 1 degree C. four of the most commonly used units all linked by conversion factors that are nicely defined as 1:1.

the decimal system is secondary to that.
>>
>>8322387
woop. fucked up heat capacity. 1 calorie / (gC), not 1 kcal. you get hte idea though
>>
>>8322370
>no, metric is the base system. the prefix system is a convenient add-on to the metric system but it's not intrinsically tied to it.
>Metric is a decimal system, and that's its key selling point. If you take that way, you aren't left with much of a system at all.
No, the key selling point of the metric system is that it uses the SAME prefixes for ALL quantities, with the consequence that 17 gram per milliliter is equivalent to 17 kilogram per liter is equivalent to 17 tons per cubic meter. Exactly what those prefixes are is secondary, but them being consistent is critical.

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Ill start with basic trig

someone please solve step-by step cosx=tanx (where the cos graph intersects the tan axis)

Thanku
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>>
How close is humanity in radically extending its lifespan, and maybe reverse aging?

Are there any governments pouring funding into things like this?
>>
Does anybody know of a good textbook to get started with modular arithmetic?
>>
>>8320644
more number theoretic point of view:
An Introduction to the Theory of Numbers - niven/zuckeman/montgomery

more algebraic point of view:
hungerford - abstract algebra: an introduction
>>
>>8320837
many thanks
>>
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I can't decide.

Should I use Hoffman/Kunze or Friedberg to learn linear algebra?

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What university are you at /sci/?
What course?
Do you like it?
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>>
>>8317325
Imperial College Aero Engineering
It's great desu fampai
>>
>>8317889
looking to go ther for my masters in geo. do u like it?
>>
UCLA
Electrical engineering
Got rejected from Berkeley
transferred from SDSU with a 4.0
>>
>>8322117
its a comfy ass school if you are in the geo sciences. USGS right on campus, lots of outdoorsy shit to do, coors brewery across the street that gives free beers.

if you don't like the sleepy mountain town vibe, you can live in downtown denver which is only 8 miles away. the city itself has great public transpo and really beautiful women (least fattest state in the union). plus DUDE WEED LMAO if thats your thing.

don't come here for any engineering besides mining/petroleum tho
>>
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Transfer next semester for engineering
Im have all my prereqs finished but I still don't know which discipline to major in. What do? Interested equally in mechanical, electrical, civil, and computer science.

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Hey /sci/ I'm looking for books documentaries and any materials to educate myself about chemistry. Also stuff about clandestine chemistry. You know what I'm up to.

Thank you for whatever help you can provide, and please bump.
>>
>>8322281
>clandestine chemistry
well meme'd, my friend

memes aside, do you know that sticky exists?
>https://sites.google.com/site/scienceandmathguide/subjects/chemistry
also, there's a big torrent full of books, chem included
>>>8303980
>>
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>>8322281
Here's a cool and simple thing you can do. Though I find this works better (longer-lasting glow) with Everclear (95% ethyl alcohol)

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What exists beyond abstraction?
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>>8322345

This increases my knowledge.
>>
>>8322318
define "beyond"

abstraction needs to be on some sort of scale to imply there is something beyond, something "more abstract" or "more artificial" for example
>>
>>8322318
>Gorilla posters still not using Harambe for their gorilla posts

How does it feel to be trapped in 2015 faggots?

FFS get on with the times, man.
>>
>>8322374

beyond as in the 'next step up'; an evolution of the former.
>>
>>8322318
literally any word starting with any letter of the alphabet besides "A."

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Why does SpaceX have such a shit track record? It's like every other rocket they launch blows up.
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>>8321211
>some people died horribly
>"fun" fact
>>
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>>8321211
>https://en.wikipedia.org/wiki/Space_Shuttle_Challenger_disaster#Cause_and_time_of_death
Huh. You learn something every day.
>>
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>>8320506
RUDs are part of the business, mate
>>
>>8322321
>The media is full of "Elon Musk Is Literrally God At This Point And Here's Why", especially the shitty clickbait-prone outlets that everyone reads, and yet, above all things, you morons complain that people have a bad impression of him.
Yeah, this is called "polarization of opinions". Irrational worship on one hand, and irrational denigration on the other.

Your own opinions aren't reasonable or based in fact, you're just one more moron who decided to pick a side and take it to an extreme.

>he's mediocre at running a business
>His investment in PayPal at the right time was the only intelligent thing he ever did.
Elon Musk started from a middle-class background, took degrees in physics and economics, got accepted to a physics PhD program but left it to go into business, became a mlilionaire in his late 20s, a hundred-millionaire in his early 30s, and a billionaire by 40, now a 10-billionaire at 45 and one of the richest and most influential men in the world, all by working in unforgiving, competitive industries where most businesses fail.
>>
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you know, its people like you for there why are everything is wrong the with the world today...

spacex is a small indie rocket company

they dont have a large rocket team
they dont have much money
they dont have much time
they dont have much experience

but they have a lot of heart

its not fair to hold them to the same standards as AAA rocket companies like russia or china

they've won countless innovation awards and were ranked most hyped indie rocket company of the year so give them a break

having procedurally generated rocket plans is the most innovative idea of all time. the one they chose is over 18 quintillion other potential plans, so obvously its a good one.

every once and a while the rockets can explode, but thats the nature of indie rocket companies.

give them a break you owe them so much they are so brave

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post women and their achievements you unironically respect

starting with the obvious
>Marie Curie
>nobel prizes in physics and chemistry

she might just be the most decorated female in science
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>>8322153
nope
>>
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>>8322032
>>8322053
>>8322081
>>>Dina Katabi
>>>X-ray Vision

https://kentpresents.org/edit/resources/dina-katabi-2-w800.jpg

https://www.youtube.com/watch?v=JyyLsTJmWWg
>>
>>8322236
>are you an american citizen?

wat
>>
>>8321750
Your life is bullshit
>>8321753
You know emotions apply too
>>8321787
No
>>
>>8322380
>Your life is bullshit
thanks for conceding xD


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