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Archived threads in /sci/ - Science & Math - 1015. page

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Hi everyone, i am testing the reliability of this iq test http://www.cerebrals.org/jcti/index.html then i need prety big base of data , help me taking the test and posting the picture of your score. ps(dont cheat just beacause i dont see the point)
7 posts and 1 images submitted.
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The validity of IQ testing is predicated upon rigorous standardization as it is literally a relative measurement. You can't just make a little online questionnaire and expect it to reveal anything meaningful. Some people will cheat, some won't take it seriously, others will, who knows.
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>>8580794
Right, real IQ tests aren't cheap either. Most legit IQ test require a certified psychologist to monitor you as you take the 4 battery tests. Online test are only good at measuring your spatial and memory ability very crudely, but it fails to measure your verbal and arithmetic abilities.
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\int\! f(x) \, \mathrm{d}x

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Why is SETI and other scientists looking for alien signals in space assuming that other advanced civilizations are using radio waves to communicate? Isn't it more likely they would use some other more effective way to communicate?
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>>8580650
>Isn't it more likely they would use some other more effective way to communicate?
Such as?
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>>8580654
How the fuck would I know? Lasers?
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It's not so much that they would use radio signals to communicate. The belief is that advanced civilizations likely, at some point in their rise, bleed radio waves (like we do). So, we are looking for these signatures that indicate intelligent life, whether they are explicitly trying to communicate for us or not.

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>when people start talking about quantum mechanics without a single PDE to be seen anywhere
Don't do that.
16 posts and 1 images submitted.
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>>8580529
PDEs are not necessary unless you talk about dynamics.
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>>8580529
You can do QM with matrices
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>>8580558
">You can do QM with matrices"
this

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How do you combine a job with school?
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>>8580437
It's called an internship
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>>8580448
yeah, but I can't wait to 6th semester.
I'm just going to enter in college next month.
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>>8580450
You can't really.. everything needs training.
In some areas there might be places you can get """experience""" like working as a machinist while you're in school for mechanical engineering, but it's pretty pointless. You're going to be swamped with studying anyway. You aren't going to be able to hold a 40 hour job unless you're a robot.

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What does it mean?
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"In the middle intestine"
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>>8580027
coward
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It means that the definition of "organ" is defining what an organ is, even if itis notvisible clearly on the first or even on the second glimpse.

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How fast does the solar wind blow away Mar's atmosphere? I was thinking, if we ever got serious about terraforming Mars, we could build a fleet of automated space blimps that collect air from Venus, and then release it on Mars. We'd seed Mars with extreme earth plants that can survive on Mars so that by the time Mars has a thick enough atmosphere for humans to survive in, the plants will have created enough oxygen for us to breathe.
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Also, would midgets be less effected by the miniscule gravity on Mars? Obviously they'll weigh the same % less than a bigger person, but I mean since lower gravity apparently fucks with our bone mass and all that, maybe lighter people would be less effected in the first place.
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>>8579854
>>8579877
you're a fucking retard
kill yourself
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>serious about terraforming
I like that Genesis missile Captain Picard could just fire at any planet he wished to magically 'terraform' but that just goes to show you the directors and TV people don't have a clue how one would really go about doing it.

I think for one thing you need a molten core out gassing for a billion years maybe? Perhaps just setting a planetary core made of hydrocarbons on fire, like those coal mine fires, may be the ticket? Of course you would need to haul a lot of oxygen tanks down there with your Bic lighter.

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It is Winter
-You pay for heating your house
-You Operate a fridge in house and pay for cooling back down stuff that you previously paid to heat up

Btw, did you notice it is COLD outside?
35 posts and 1 images submitted.
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Some people actually do store their perishables in natural cold places but unless you are retarded you would realize most people arent farmers or loggers with meat cellars and anything outside has a chance of infection or scavenging by animals. Buying a refrigerator is basically essential for the summer, so the only "oppurtunity cost" is keeping the thing cold. Fridges are usually good insulators for this purpose.
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You can't bitch about the way things are done unless you have a viable solution. What are you, a millennial?
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>>8579652
Weather in my state is too random. One day it will be 60 outside, next it will be 20.

High schooler here, need some math/college advice

>inb4 18 years old to post
I'm a senior and already 18

So I'll be headed off to college next school year, and I'm considering a double major in math (first major will almost certainly be CS).

What's the general "course progression" for an undergrad in math? I took Multivariable Calculus and Linear Algebra last year, but let's suppose that my college requires me to retake them. I am not taking any math classes this year.

Freshman year:
1st Semester - Discrete Math (for CS), Calc 3/Linear Algebra course
2nd Semester - Linear Algebra/Diff Eq course, probably proof based

So starting here I'm not too sure what the progression is. Help is appreciated

Sophomore year:
I have been told to choose a probability course and a combinatorics course

Junior year:
1st Semester - ODE, Real Analysis I <-- is this too much? Is it ever a good idea to take multiple math classes per semester?
2nd Semester - Real Analysis II

Senior year:
I really want to take abstract (modern) algebra. I've been working through Cohn's book (slowly) and I find it fascinating. Apart from that, I don't really know. Topology? Differential geometry? Honestly it all sounds really interesting. This is not for 4 more years and many things can happen in this time, so I'm probably getting ahead of myself.

Those of you who majored in math, what were your undergraduate courses?

Also so I don't have to make a different post about it, what's the best book for restudying Multivariable Calculus? How is pic related?
48 posts and 7 images submitted.
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If you're majoring in math it'll probably be closer to 2-3 courses in your senior year. Progressions sounds fine, but you'll be taking more than less later on.

The real question that will dictate your course load is what you want to do with it.
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I dont know about how things are good for a double major but for a math major that plans to continues his or her studies in a graduate program this courseload is a joke. Real analysis should be taken in your second year at the latest, and algebra in the same year. As a computer scientist, there is much more reason to take algebra rather than "real analysis II" which I assume to be analysis on manifolds. Algebra is the language of discrete math, analysis not so much, and real analysis I i.e. something like Rudins book is enough for probability studies like measure theory and fourier analysis. Also while it is nice to be acquinted with the theory, if you are not pursuing a job in academia learning math "rigourously" is not required, an employer could care less about your ability to recast stokes theorem in the language of differential forms (unless you are pursuing a job at a HFT hedgefund but I digress). As an undergraduate major in math these are some of math classes I took.

Year 1: Multivariable calculus, introductory probability, and Real analysis. I studied ODE, algebra (linear and abstract together through Artins book), and analysis on manifolds on my own time.

Year 2: Algebra 1 and 2 (these were required to be taken), applied discrete and continuous math (2 seperate classes), functions of a complex variable, and introduction to PDE

Year 3: Commutative algebra, representation theory, geometry of manifolds, number theory I, elliptic curves, and mathematics for finance. I went way way overboard this year and almost failed out, commutative algebra and representation theory were extraordinarly difficult

Year 4: Differential geometry, differential analysis, functions of several complex variables, and some seminars on lie groups and hecke algebras.

I treated my studies like a job, I worked 9-5 everyday, didnt think about math the rest of the day if I could help it.
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>>8579554
christ we really need to make one of these things a clearly visible sticky

there's at least 2-3 people a day making
>gibs undergrad math curriculum
threads

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>Scientists tend to lean left
>High IQ people tend to lean left

Why?
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>>8579401
Not sure. Guess high IQ people tend to be cucks?
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Because both parties, in the US at least, have in recent history tended to differ more on social issues than they do on fiscal or authority issues with the exception of the past election. A lot of people vote with social issues in mind because they realize they're going to get the same result in the other fields from either candidate (more policing, more power to whoever is in the office, more bullshit), so they tend to go with whoever promises to be more socially liberal, something which is an objectively correct policy to have.

Democrats burn your money on failed social programs, and laundering efforts and Republicans burn it on Israel, funding their own businesses and growing the wealth gap between classes. Both groups have their clear cut crooks, and they have a firm unshakeable grip on our system. But we can at least try to get along with each other as we get closer each day to finally crashing and burning.
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>>8579401
If that is true then why do niggers and spics lean left?

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Are there any health benefits to massage other than "muh stress relief" from feeling good?
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>>8579383
Yes
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>>8579383
yes, orgasming frequently is good for your prostate.
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Foam rolling is where it's at. Release of endogenous endorphins is great for depression. It's also been good for my posture.

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First one to prove it gets a prize.
37 posts and 4 images submitted.
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>>8576049
Wow I get a prize for doing your homework?
Ps : use induction you stupid sack of shit
ps+ : change your major
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>>8576059
You won't get it faggot. Even Terry Tao failed. I call you out, prove it!
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>>8576059
>This problem was submitted in 1988 by West Germany. None of the six members of the Australian problem committee could solve it. Two of the members were George and Esther Szekeres, both famous problem solvers and problem creators. Since it was a number-theoretic problem, it was sent to the four most renowned Australian number theorists. They were asked to work on it for six hours. None of them could solve it in this time. The problem committee submitted it to the jury of the XXIX IMO marked with a double asterisk, which meant a superhard problem, possibly too hard to pose. After a long discussion, the jury finally had the courage to choose it as the last problem of the competition. Eleven students gave perfect solutions.
>Among the eleven contestants who answered the problem correctly were Fields Medallist Ngo Bao Chau and Putnam Fellow Ravi Vakil. Among the many who scored 1 point out of 7 were Fields Medallist Terence Tao (who was, after all, only 13 years old) and Putnam Fellow Jordan Ellenberg, who had perfect scores in 1987 and 1989.
It seems that you are a bit arrogant and ignorant, you should leave this board.

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>1=0.999
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Oh god not again.
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>1 is the smallest real number greater or equal to every member of the sequence 0.9, 0.99, 0.999...
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>>8568371
>10 is the smallest real number greater or equal to every member of the sequence 9, 9.9, 9.99...
REALLY MAKES YOU THINK

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https://www.strawpoll.me/11978410
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Physics.
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Is James Grime.your favorite mathematician by any chance?
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>>8568216
>Philosophy
>Shit tier

1/10 troll

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>Be scientist
>Invent cool new fuel
>Convince everyone to use it
>Everyone loves it and economic prosperity fuels a revolution of science
>100 years later tell everyone they are scum for using your invention
>Tell then you'll invent a new one that won't hurt the planet (pinky promise!) they just need some more money

Scientists everyone.
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scientiststs are retarded
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>>8582339
What fuel are you referring to?
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>>8582344
ones refined from crude oil obviously. are u dense?

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I feel that I am merely an agent, giving you some keys which have been given to me to pass on to you. These keys are to unlock doors out of your present prison, doors opening on new vistas, doors beyond where you are now. Each one of us is far greater, far more advanced, far more consciously aware, far more intelligent than each one of us conceives ourselves as being. Our main problem now, with these basic givens, of a self beyond our present self, the super-self being present, is mainly a set of hindrances, a set of evasions, a set of refusals to see that one really is great, that one really has multiple levels of consciousness, that one has a super-intelligence, that one has extreme sensitivity with respect to others, that one has deep empathy, sympathy, and love. That one somehow communicates in both directions with other beings, other entities, in the universe, and in realities that we do not talk about or perceive directly in our present state. One problem in human existence is the tendency to repeat. Repeat feeling, thinking, action, again and again and again, in the same kind of looping cycle.
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It is as if one is controlled by a set of loops of tape. On these tapes are recorded what one says on one track, what one feels on another track, and what one does on a third track. These are endless loops, and one tends to repeat these again and again and again. We will illustrate by using repeating words, repeating sentences, and repeating ideas how one can get involved in such repetition processes, and what sort of traps, blind alleys, evasions, hindrances, and refusals can develop in the face of such externally forced repetition. The point of these exercises is to make you more aware of the repetitional processes occurring in your body, in your mind, in your feeling, and in your relationships with others. How you avoid achieving your goals by repetitive methods. How your relationships with others repeat, how you use them in the service of these blindly repeating patterns. How your capacity for repetition is infinite, and how your orientation is not aware of these repeating patterns. And, how large numbers of these must be eliminated from your function. How you must assimilate more open-ended, longer term loops, one side of which goes to infinity.
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So, it is not circular, it has become elliptical, and ever hyperbolic. Ones impulses tend to push one around such circles, especially if there are two forces operating, two impulses, one counter to the other, in a so called double bond. One can go circular indefinitely under two counteracting, opposing forces. Ones needs for repetition are such that one can repeat in order to be safe. The safety of the familiar, the safety of the old tape loops, rotating merrily. One, under these circumstances, tends to ignore the possibilities of escape, tends to ignore the possibility of widening out these loops, of making the so huge that in this lifetime one does not see the repetition. The form of such repetitions is obvious, tends to be circular or elliptical and it is very superficial, and one would very much like to change the form into some sort of a spiral, at least, a spiral with no end. This is one of the possible conversions of the form. The substance involved is that this is quite counter to one's super-self. The super-self tends to be parabolic, hyperbolic, and moving towards infinity, not caught in circular or elliptical orbits but more shooting of on asymptotic paths far off in the infinite universe.
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>>8582204
>>8582206
>>8582207
>[CITATION NEEDED]
/thread

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