Archived threads in /sci/ - Science & Math - 496. page
Images are sometimes not shown due to bandwidth/network limitations. Refreshing the page usually helps.
Because computer science is a field of mathematics, teaching the shit employers want is categorically not CS.
Mainly though it is because schools are not interested in churning out employees as they are in creating researchers. Universities are research institutions which teach dumb 18 year olds so they have more money to spend on research and more researchers in the future.
Also all the interesting, high-level jobs at Google etc. do require a deep CS knowledge.
P = N * P
0 = N
>>7761353
this is not algebra. this is describing Nondeterministic Polynomial Completeness
>>7761355
In computational complexity theory, a decision problem is NP-complete when it is both in NP and NP-hard. The set of NP-complete problems is often denoted by NP-C or NPC. The abbreviation NP refers to "nondeterministic polynomial time".
Although any given solution to an NP-complete problem can be verified quickly (in polynomial time), there is no known efficient way to locate a solution in the first place; indeed, the most notable characteristic of NP-complete problems is that no fast solution to them is known. That is, the time required to solve the problem using any currently known algorithm increases very quickly as the size of the problem grows. As a consequence, determining whether or not it is possible to solve these problems quickly, called the P versus NP problem, is one of the principal unsolved problems in computer science today.
While a method for computing the solutions to NP-complete problems using a reasonable amount of time remains undiscovered, computer scientists and programmers still frequently encounter NP-complete problems. NP-complete problems are often addressed by using heuristic methods and approximation algorithms.
ITT: facts that blow your mind
If we had birds similar to horses in pulling power, planes would have been possible before the invention of the internal combustion engine.
>>7761332
>fact thread
>OP contributes nothing
>>7761332
If we had coal with an energy density of uranium, nuclear fission would never have been invented.
>The more you know.
>>7761338
>humans dont explore and invent for the hell of it
If you start a random facts thread, idiots will fill it will bullshit in no time.
how is it possible that we can see light from the beginning of the universe? Doesnt that imply that space is expanding at a higher speed than light?
>>7761258
who claims they know its from the beginning?
damn
>>7761260
well they said it was galaxy form 600 million years after the big bang
Is it true that some people are genetically incapable of understanding math beyond precalculus?
define "understanding"
Why does that house have two chimneys but only one fireplace?
Yes. It's called trisomy 21.
I need a sequence of numbers (and this sequence should be in a number system which uses a real number for a base, for example base-φ) which returns to the original number through the same operation being applied to each number. I am not a math student or even a student at all really, so I don't know if this is possible and I'm probably not using the correct terminology for what I'm trying to convey. This might sound a bit vague but I hope someone is able to help me. If you want to know why I need this it is because I am interested in circular narratives.
>>7761135
Reformulate your question. Makes no sense to me at the moment.
>returns original number through same operation
x+0=x
X*1=x
>>7761148
I will try. So lets say we have the following:
A, B, C, D, E, F, G, H
And A=H.
This is a sort of hypothetical and abstract representation of what I'm looking for.
I have been reading about recursion a little bit, but I'm not sure if that's precisely what I mean.
Is spanking actually bad for kids, or do kids of stupid violent parents merely inherit (genetically) violent and stupid tendencies?
Are there any double blind randomized controlled twin studies on this or is it all correlational bullshit?
>>7761106
who knows
better do some maths
>>7761106
If spanking was a genetic behavior, it would be more prevalent now not less.
Why do retards on /sci/ think genetics accounts for everything
>>7761106
I was spanked as a child.
I've only punted my cat across the room twice, seems I turned out fine
If one were to slice a tiny bit of my frontal lobe off and replaced the bit with a functionally identical piece of another brain, would I think the same? Would I be the same person? Would I still be conscious? If I would think differently, would I be able to remember the kinds of thoughts I had before the procedure?
Assuming that my personality/memories/thinking processes are not radically altered (that is, assuming that I'm the same conscious being as I was before, just a bit different,) If my brain were to progressively be replaced until it's a wholly different...
Comment too long. Click here to view the full text.
>>7761080
I'm not looking for a philosophical answer, I'd like one backed up with facts. Are these problems unsolved?
>>7761085
It has been solved. We have plenty of data from all of the human brain transplants we have performed. I'm just withholding the information out of spite. /s
Nutritional Science almost never shows up on this board, so I thought I'd make a thread about it.
I have a couple questions about nutrition:
1. Is saturated fat or dietary cholesterol bad for you? Does your health decline the more you increase the intake of either of the two.
2. Why do students in medicine rarely have take classes on nutrition? Wouldn't nutrition be the most important aspect of health?
3. Why is there no consensus on Low Carb vs. High Carb diets? Why is there rarely any consensus on nutritional information, despite the...
Comment too long. Click here to view the full text.
I started training for endurance athletics (long distance running and road bike racing) back in 2008 and the first thing I did was get my diet sorted not only for training, but for general health.
2. Nutrition is definitely the most important aspect of health next to physical activity (loading your skeleton, stressing your muscles, etc.) If you want to understand why nutrition as a science and as a conscious thought is suppressed in most of the world you are going to have to TRAVEL DEEP DOWN THE RABBIT HOLE AND SWALLOW BIG-ASS REDPILLS THAT WILL BLOW YOUR FUCKING WEAK,...
Comment too long. Click here to view the full text.
>>7761041
Has there been any research to support your conclusions, other than anecdotal ones?
I am not trying to discredit what you are saying, in fact I agree with most if it. But why does this imply good health? If anything it makes it sound as if it only effects how much energy you want to intake, which really is more of an example of the idea of calories in vs. calories out.
>>7761044
What conclusions specifically? I'm not really trying to make any solid claims that aren't easy to fact check.
Does IQ exist, or is intelligence what you make it?
>debate it, faggots
It exists. Only low IQ faggots say it isn't real or doesn't mean anything to hide their inadequacy.
Shoo, shoo shitposter
>>7760977
It better, but probably not. It's outdated.
Is it possible that the our solar system, galaxy, or universe is an atom or atoms in a larger universe?
No.
Yes.
Maybe.
What Makes a Character: Deriving Non-Conformity
In the reduction of rational the standard definition intention within personality gives the variance of the elementary rendition of persuasion within the characterization of the standardized environment of which can be deigned that of a 'fit' in such; this implies that when suspending the characterization of a study of a environment you will find a simplistic chain of redactions that correspond with only minor confrontation with each other, this set of variances is systematic with the nature of what makes some...
Comment too long. Click here to view the full text.
>>7760950
It's ok if you want to talk about yourself you know. It's kinda sad to see you go on these sprees. I'm here for you.
>>7760955
>>7760963
I mean it. I got some time to burn.
C = Speed of causality (otherwise known as speed of light)
What if the speed of light really is something different and we just experience it this way?
Consider the following world:
In a far distant universe things are different. Distances between objects are measured not spatially, but as space-time vectors which denote how far spatially and how far in time the events differ. This unit of measurement is more more useful since someone who stays still still moves at v=c in a completely vertical line parallell to ct.
Now if all that is clear, consider...
Comment too long. Click here to view the full text.
Proving the first two are very simple, consider if you travel at v = 0.99c and you consider a train going into a tunnel at the exact same size as the tunnel. A "considerably" inertial object at the surface of the earth or even in space will both observe the object exactly disappearing then reappearing on the other side, you however at v = 0.99c relative to the tunnel and train will never see the train completely hidden in the tunnel as you will see both ends stick out slightly. This is because the train moves relative to the tunnel and contracts the space of itself...
Comment too long. Click here to view the full text.
>>7760835
>someone who stays still still moves at v=c
>What is mass
that is the time it took to render the frame. If we are running 80fps, then we pass in 1/80s to the render method. This is fine in small quantities but easily gets out of hand when objects move close to the border then a large lag appears and suddenly the object moves through the wall with no collision.
This very model has a problem: Objects move in variable timesteps and thus there is no global maximum velocity or an agreeable constant of causality.
One solution is to agree on a maximum timestep, nothing can occur faster than 1/60 s and beyond that we can accept...
Comment too long. Click here to view the full text.
Labyrinth riddle. Two girls (1 always lies, the second always teleschermi truth in a room with 2 doors) i remember that there was a pic with 2 more difficulties to solve im looking for this . One was like "any girl does not know anything about other girl existance"
>>7760748
Girls always lie.
don't know about the other one you're talking about.
but if the girls don't know about each other, can I explain them ? after all, the rule is only 1 question, it doesn't say anything about explanations.
(love the pic)
You can only talk once to the girls and even if you explain her second she would still not see her and She would answer "there are no other girls here" when you try to know about her answers
how do i become mediocre at statistics? i don't want to be good at it. i just want to be able to solve simple problems. i don't know anything about it but i know mediocre multi-variable calculus and mediocre linear algebra
>>7760552
>i know mediocre multi-variable calculus and mediocre linear algebra
>how do i become mediocre at statistics?
continue being you but with a focus on stats
I think you've got the mediocrity thing nailed tbqh
>>7760588
the thing is, i'd have to take a class on it. but i want to learn it by myself. is there a set of notes or problems for idiots or something like that
hehe
Has there ever been an Asian STEM professor who didn't suck ass?
I'm not a racist by any means. I go to a top 20 math / engineering school, so I'm sure these guys are great in their fields and everything and maybe even great educators in their home country, but as educators in English they're horrible 100% of the time in my experience.
All of the good ones I've had have been Asian-American
I've had some bad and some good. Probably more good.
Most of the Asian profs I've had have been good. That said, they've all been Indians who've been speaking English from a very young age, so I might have a biased sample here.
