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Archived threads in /sci/ - Science & Math - 20. page
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What does IQ exactly measure?
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>>7839331
smartness
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>>7839331
IQ
>>
SHITPOSTING ABILITY

OBSERVE

>120
VERTICAL
E
R
T
I
C
AL

>130
DIAGONAL
I
A
G
O
N
A
L

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I have decided for everyone to post their favorite elements on the periodic table. Mine is the golden boy itself:
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>>7839312
fire
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Mine are hydrogen and iron.
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Anyone?

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Hey /sci/entists,
Could I make props (propellers) out of Balsa wood for a drone?
Pic related, I'm going to make them for an Eachine H8.
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sure
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>>7839310
Thanks
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>>7839315
np

I have a PDF with around 500 pages I have to learn and partly memorize. There are pages with just photos, some definitions, examples, etc. Is there a /sci/ aproved way to learn? Should I write all the things I have to memorize on cards (which costs time) or learn directly out of the PDF?
Also because I'm a lazyfag I only have a few days left to learn that shit.

>pic not related but how the pages kind of look like
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>>7839215
If you have any exams from previous years do those
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>>7839230
Definitely gonna do that, thanks
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Group the cards into clusters, connect the clusters. Try to find dichtonomies, or barymetric relations. Thus it becomes easier to memorize

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Is probability real?
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probably
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probability is real because every system has an input and output, and given choices and the variables which dictate the combination of states which that system can take, there is a distribution in which you can say what the "probability" of an event occurring is.

if i flip a coin ten times, how many combinations are there?

given how many combinations are there, what is the probability that each one will happen, and why?

each of those aspects are real. it's not just hand-waiving chaos or in-determinism, because that's not what it is trying to tackle. you can have a system where it's fully random, like a roulette table, and still deal with probability.
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>>7839209
maybe

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Why russia owns the competitive programming and hacking scene?
(Also the east european nations)
[pic related]
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Because Russians are good at math/stem stuffs. Remember first nuclear plant? First person to space?
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proofs?
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>>7839127
>hacking
>>>/g/

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[latex]\frac{1}{2}[\latex]
>>

$\frac{1}{2}[\math] >> [eqn] \iint_D f(x,y) \mathrm{d} x \mathrm{d} y [/eqn] >> gaddamit [math] \frac{1}{2} [math] File: 1454651259674.jpg (435 KB, 1280x1280) Image search: [iqdb] [SauceNao] [Google] 435 KB, When does math stop being plug and chug? 15 replies and 1 images submitted. Click here to view. >> when you start studying combinatorics >> The moment you have to think about what formula to use, or possibly derive your own >> >>7838995 >The moment you have to think about what formula to use That's still plug and chug How do you know the scientific method gives valid results? Especially those of you who think philosophy is a poopoo field. 18 replies and 7 images submitted. Click here to view. >> File: 1452832278967.png (20 KB, 400x400) Image search: [iqdb] [SauceNao] [Google] 20 KB, 400x400 >>7838877 >it's another U CANNUT KNOW NUFFIN thread >> >>7838887 >thinks "u can't know nuffin" is what philosophers think >> >>7838877 >Science finds truths popsci meme stop watching black science man File: picture-13.png (66 KB, 657x649) Image search: [iqdb] [SauceNao] [Google] 66 KB, hey /sci/, what program would help me take enough physics/chemistry/math courses to do research on these techs while still using those credits accordingly for the degree itself instead of just squandering electives: high temperature superconductors Josephson junctions multijunction photovoltaics magnetic refrigeration electroactive polymes ultracapacitors chemical vapor deposition Selective laser sintering machine learning electron beam welding Hall-effect thruster Spherical Tokamaks scramjets nitroamines rotaxanes my... Comment too long. Click here to view the full text. 10 replies and 2 images submitted. Click here to view. >> >>7838807 Chemistry with a focus in physical chemistry. That alone will get you up to modern physics, linear algebra, and you'll take all the chem you need. >> >>7838812 what about other math like functional analysis? would it pop up in research of a superconductor >> >>7838822 Honestly I couldn't tell you, but I assume you wouldn't need functional analysis for superconductivity. I had only up to vector/multivariate calculus for my undergraduate major. Anytime a subject, like biochem physics, needed mathematics I hadn't taken yet or practiced, the applications were uniform enough that they were easily learned and understood in context. hello /sci/ the longest word composed by 'a' and 'b' with no pattern repeated twice in a row has length 3, for instance "aba" it is pretty clear it cant get any longer what would be the maximum length with no pattern repeated three times in a row? is it even finite? it can get pretty long, for instance aabbaabbaabaabbaabbaabaabbaabbabaabbaabbaabaabbaabbaabaabbaabbabaabbaabbaab... however, for instance, aabababb is not permitted, since 'ab' is repeated three times in a row 20 replies and 1 images submitted. Click here to view. >> >>7838787 your example has the string "aabbaabbaab" repeat continuously. what is the minimum number of characters required to be a pattern? >> a more technical formulation of my question would be "is the quotient of the free group [math]F_2$ by $\forall x~x^3=e$ finite?"
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>>7838797
look again at my example
also, the "..." do not imoly that the pattern is repeating, it means that i could go much further but it gets boring

any repeated sequence of characters is a pattern

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I'm starting my PhD on machine learning starting next spring.
I'm worrying right now because my math is pretty much shit thanks to my shitty undergrad CS courses. (No rigour maths, the hardest is probably Discrete math, my school didn't even offer Analysis, only Cal 1 2 3. Yes, the school is shit, don't ask its name).
I can read empirical ML papers fine, even if the consists some basic Calculus level equations. But when it comes to difficult models/learning processes which requires a lot of math maturity, I'm fucked.
So I have to learn Analysis,...
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>>7838744
Linear Algebra (Dover Books on Mathematics) by Georgi E. Shilov
Elementary Real and Complex Analysis (Dover Books on Mathematics) by Georgi E. Shilov
Elementary Functional Analysis (Dover Books on Mathematics) by Georgi E. Shilov

Advanced Calculus of Several Variables (Dover Books on Mathematics) by C. H. Edwards Jr
Tensors, Differential Forms, and Variational Principles (Dover Books on Mathematics) by David Lovelock, Hanno Rund
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>>7838744
I'll be honest with you: unless you are a genius, there's no way that, without mathematical training, you will understand in 2 months analysis and differential geometry without sounding like a dumbass when someone asks a question.

Not only becuause they're somewhat difficult subjects (not that much) but also because they build on other fields (algebra, topology).

So just try to find how to solve this problem without relying on learning this in 2 months.

And, by the way, for geometry...
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>>7838744
>I'm worrying right now because my math is pretty much shit thanks to my shitty undergrad CS courses. (No rigour maths, the hardest is probably Discrete math, my school didn't even offer Analysis, only Cal 1 2 3. Yes, the school is shit, don't ask its name).

Holy shit, which program give you an offer?.... I applied this year to several programs in the same area and they are very selective with the people they choose?

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How can you tell if you or someone else you know might have an IQ in the range of 200+ without resorting to official testing?

Say, for example, you're someone who has scored the top grades across the board in your country's public exams with very little effort (less than two hours revision, five days a week, for three months prior to the exams themselves)? This might indicate a high level of intelligence, but what if you have a personal distaste for mathematics? Let's say it doesn't excite you and you never took it beyond high-school. Most people with...
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>>7838666
"Welcome to iQ testing, where everything's made up and the points don't matter."
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>>7838715
what?
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>>7838715
kek

>>7838666
There's almost no correlation between grades and IQ. One of the few things IQ predicts is social deficits at high IQ's, 150+ I believe is when it becomes strongly correlated. Math is a solitary, cerebral, logical pursuit. It makes sense that someone with a very high IQ might be drawn to study maths. Also 200+ is unheard of as far as I know. Don't get hung up on IQ. It's not a bad assessment of some basic intellectual capabilities,...

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Well, /sci/?
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>>7838630
1=/= sqrt 1

Dumbass
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>>7838630
1=/= sqrt 1

Dumbass
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>>7838630
1=/= sqrt 1

Dumbass

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What does /sci/ think about electrical engineers?
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>>7838582
Respectable degree, not a meme. Core job market is a bit oversaturated at the moment.
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>>7838582
less intelligent version of computer engineers
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>>7838582
bretty gud

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