How can the sum of all naturals numbers up to infinity be -1/12?
divergent series are not scalar values
>>7920871
Second line is wrong, it should be 0.
>he thinks infinity is a natural number
How would I take the jacobian of a map
[math] f:{\mathbb{R}^{nxn}} \to \mathbb{R} [/math]
where [math] A \mapsto \sum\limits_{i,j} {{A_{ij}}^2} [/math]
>>7920709
i did
>>7920715
try turning off your computer and turning it on again, then tell me if your problem is fixed
Is QM correct? Are particles really 'everywhere' until they interact with a classical system? How can a classical system confine a quantum object to a definite location if it itself is made up of mere quantum objects?
Personally it seems more reasonable to posit that things always have a definite position, but we're not always capable of figuring it out to arbitrary precision.
>>7920675
no rationalism is correct. Math do not describe the world, no matter what you fantasies are.
Mathematics is a choice of a framework to look at the world. Then the people embracing the scientific method choose to sort out what well formed formulas make sense according to them. since they know that it remains a choice to say that ''such well formed formulas describe the world (like the one of the free energy or the one of a black hole)'' but they cling to the notion of ''explanation'', they hide their personal choices into an external necessity: ''it is necessary that my mathematical model is right, in the sense that it describe the world''.
also, particles do not exists in most modern models. what exists is fields and the number operator.
Next time, ask your professor ''how many electronic wave function [NOT ELECTRONS] is there in the universe ?''
if he is smart enough, he will refuse to answer, or say that there is one.
>>7920750
Pretty much the sanest reply I've read on /sci/ for a while.
>>7920675
Our conception of objective reality has this evaporated into a mathematics which describes, not the behavior of particles, but rather our knowledge of this behavior -Heisenberg
Get off /sci and read a book nigger
Leave this board if you can't solve this. And don't come back until you snapshot what trig book you chose to refresh with.
>>7920643
I'll stay.
>I still remember my trigonometric identities
Excuse me? This is a Science & Math board, not a Useless Math Exercises board.
>>7920713
>not integrating by parts
>being this much of a faggot
Has there ever been a bigger troll in the world of mathematics?
Let's Discuss.
>>7920511
i thought math used numbers?
>>7920511
>a bigger troll
bigger troll is not better troll
>>7920511
This is false, because a valid representation of n is infinity, which will make both sides infinity and thus equal to each other.
Hey /sci/. Math illiterate here. Gonna have to take Calculus next year after not doing any math for a little over a year. Highest math I took was Pre-Calc, but all I remember is basic stuff from Alg 1 and Geometry. How should I go about relearning everything? Khan Academy? Thanks.
>>7920417
I'm going to go out on a limb here and assume that you are not going for a math degree.
If that is the case then don't even bother. You will only need to understand calculus if you are asked to do proofs or some shit. Everything in calculus is given to you as a nice little formula and every calculus book is literally a bunch of formulas spaced out between long paragraphs of useless (for non mathematicians) bullshit to make you feel like you are learning but you know that for the test you are just going to memorize that the derivative of arcsin is 1 over the square root of 1 minus x squared.
Don't even bother my man. As long as you are not literally retarded then you will be fine.
>>7920437
What if I'm studying in my spare time so I can really understand it and learn to model stuff with it? Spivak or Apostol?
I wanna into math maturity but it just seems impossible. Should I memorize something? Properties of numbers, sets?
>>7920850
Spivak? Topkek you're on your own with this level of ignorance
I hate it when engineering students refer to themselves as engineers...
Like you don't see med students calling themselves doctors or arts students calling themselves unemployed.
Or physics students calling themselves physicists, or math students mathematicians, or computer scientists calling themselves scientists.
Most math majors don't become mathematicians
Most physics majors don't become physicists
Most engineering major become engineers. Likely because it's such a straight forward career path.
>>7920401
I know this might be a completely foreign idea to math majors, being that it involves gainful employment and everything, but most engineering students take engineering internships while they're still in school! Wow! Would you imagine that?
Is there any reason why you can't hypothetically have a screen of hexagonal pixals, even for all intents and purposes they're inferior?
Like a metal window screen? Manufacturing costs.
For all internets and purposes I don't see why not.
>>7920352
screen edge
Can you do it?
topsecret(DOT)quadium32.com/
Level 3 is fucken dumb mate.
>>7920332
What do I get if I make it passed level 9000?
Because I found an easy way to do it.
I'm at 'Just guess.' No idea what they want here... tried a ton of stuff already
http://fortune.com/2016/03/09/lung-cancer-risk-carbohydrates/
>increase by 49%
>FORTY NINE
So will there be truth commercials and a surgeon general report soon?
>>7920278
>fortune.com
>still eating bread
You deserve cancer.
testing
Well?
You're retarded.
50/50 obviously. either you are correct or you arent
>>7920202
Trivial.
How does a car antenna capture a radio signal when its properties are so different from the incoming signal? Consciousness come from itself we are just the antenna receiving the signal of life.
>>7919974
So, how is it possible that people with brain damage lose the ability to do shit, like recognising faces? If it was just an antenna you should only lose the ability to move your body, not the ability of thinking
>>7919974
>How does a car antenna capture a radio signal when its properties are so different from the incoming signal?
what the fuck are you on about? what do you mean they're different?
high people shouldn't be on this board.
sage.
>>7919980
If antenna is damaged it won't receive or process the signal properly. That's certain people with brain damage lose their motor skills but not their cognitive skills...vise versa.
Why care about anything in deep space? It's not going to affect us in any way and it's probably not even there anymore
>it's probably not even there anymore
explain
are aliens stealing our space?
>>7919844
since everything is moving and takes some millions of light years to get to us the object could be gone and it's light is just now reaching us
We're just curious, anon, that's all.
So /sci/ any good logic puzzles? hard ones please iv'e been getting into them but i just cant find any good ones on the internet.
july 16
>>7919737
That one usually sparks huge debate.But you are right
You're given the string of symbols ZE, from which you can apply the following transformation rules:
1) xE→xEU, meaning that if a string ends with E, you can add a U to the end of it.
2) Zx→Zxx, meaning that you can double the string that comes after Z.
3) xEEEy→xUy, meaning that if you have a row of 3 E's in your string, you can replace them with a U.
4) xUUy→xy, meaning that you can remove any row of 2 U's in your string.
For an example, you can do the following changes: ZE→ZEE (rule 2)→ZEEEE (rule 2 again)→ZUE (rule 3).
The problem is: How would you reach ZU, starting from ZE?
Is McKenna's stoned ape theory bullshit?
>>7919559
What would make you think this had any validity?
DUDE LSD LMAO
The stoned ape theory is stupid because it shows a fundamental misunderstanding of the evolutionary process. The theory is pretty much claiming that exposure to psychoactive substances caused physical changes which were then passed on to offspring, which is impossible. Enhanced vocal cords and communication centers in the brain helped create spoken language, not some shrooms