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Archived threads in /sci/ - Science & Math - 143. page


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>be me
>take a theoretical computing math class
>half ass it the whole time
>come time for the final
>still don't give a shit
>certified bad ass
>because I don't give a shit
>take the final
>get a perfect score on the final
>because I'm a bad ass
>the class average ends up being a 59
>mfw

Seriously, for an average state school, how smug should I feel? Or was everyone else just a retard?
12 posts and 5 images submitted.
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>>8076816
This tells me you took a shit intro 101 class for retards and you are a low IQ pleb.
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no you should have clearance for at least level 3 smugness.

you don't have to wear a hazmat suit or anything but you do need at least a 100% on a test you winged, so you're good.

you are permitted to post smug anime girls for at least 32 months.

>pic related, an example
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>>8076816
If you were smart, you'd study more advanced stuff on your own already.

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/sci/ I value your input on a logic problem.

What conclusion follows from the premise, "I've run out of meaningful things to think about."
23 posts and 1 images submitted.
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Aw shit I just realized this pic says "Move" instead of "Glide." Not sure if I can laugh at it anymore.
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Therefore, I've run out of meaningful things to think about. Tautology.
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>>8076661
That's useless because it doesn't make the thought go away. Trying to avoid magical thinking here.

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So what exactly is missing from this picture, apart from the dumb mistake x^n for n=-1?

Be as specific as possible, but it seems to me it's pretty complete.
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Also this
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>>8076632
>what exactly is missing from this picture
advanced math
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>>8076637
>Be specific please
Don't bother otherwise

Also obviously don't go to areas like graph theory

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why do CSfags care so much about polynomial time ?

if [math]P(n) = n^100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000[/math], what makes it better than [math]exp(n) [/math] for all practical purposes?
27 posts and 1 images submitted.
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That's a good question desu

I've always wondered that
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>>8076615
>>8076624
>>8076669
exp is infinitely bigger, that's what
it doesn't mean it's practical, which is why P=NP being a big deal for practical things (eg crypto) is a meme
>>
Because P(n) = n^c is faster than P(n) = c^n, where c is any constant. It may not be faster for n smaller than 10/100/1000/etc., but will be for any sufficiently large input. In general small inputs take little time to evaluate, so it's better to care about bigger ones.

Are there gas stations on Mars?
28 posts and 1 images submitted.
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yeah theres shell everywhere
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it just drinks its piss
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>He thinks space is real
C O N C A V E E A R T H
O
N
C
A
V
E

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For someone completely new to this board, name 3 books that you wish they would have read before joining.
44 posts and 6 images submitted.
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hyperion cantos
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>>8076545
troll under the bridge.
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>>8076545
Lawson & Michelsohn - "Spin Geometry"
Hartshorne - "Algebraic Geometry"
Rodger - "My Twisted World"

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How is this possible?
Also
>english newspapers
17 posts and 2 images submitted.
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https://en.wikipedia.org/wiki/Grafting
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>Australian newspaper
>>
you can do it with oranges too
also any fruit-bearing tree
[math]grafftin'[/math]

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If you weigh yourself on some scales, then take a shit on another scale and rewigh yourself on the first scales, why is the sum of the resulting weights not equal to your measured initial weight?
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>>8076444
>checkd
ahahahhaha Philosophy has a better score compared to Engineering.
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>>8076444
because you lose weight all the time by heating yourself, breathing CO2 out and letting water vapour out with breathing too, also through your skin and shit
>>
engineeringfags on suicide watch

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What is 1/(-12) + 2/(-12) + 3/(-12) ... = ?
21 posts and 2 images submitted.
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>>8076408
The two triangles do not have the same area.
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>>8076418
>Two triangles
Thats a triangle and an octogon m8
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>>8076408
The two triangles have different inclinations.

If all numbers can be found in infinity, does that mean all our math relates to a single point in some kind of dimension of infinity? Would it be an infinity inside a larger infinity?
27 posts and 2 images submitted.
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>>8076341
>does that mean all our math relates to a single point in some kind of dimension of infinity?

Would you mind explaining that sentence?
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wat
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>>8076452
If all regular numbers can be found in infinity, and infinity is a single unit, does that mean it can be represented as a point in a set, or an object, and if it can, what are the other points or objects in said set? And what does the whole of the set represent?

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So /sci/
WE have a room full of particles or atoms if you like.And you cant put there more atoms Now lets place object to that room we have more there, but where did the atoms from that place went ? did they flew away ? where ? Or will some invisible power stop me from putting that thing there ?
11 posts and 3 images submitted.
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>>8076160

tehy fly to space if u do this
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when you add the new object all the molecules in the room are packed tighter together, so everything becomes slightly more dense. Have you ever tried to push something down a closed tube that blocked the air from escaping?

also, what language do you speak?
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>>8076189
So they will just fly in the vacuum?
>>8076191
room FULL of particles, you cant fit anymore there.

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Yesterday i made a campfire and threw yet unidentified metal in it.
Said metal melted, and i have collected 206g of it.
Density is ~6.24g/cm3.
What material can this be?
I've tried to look it up but got nowhere.
It's more than twice as heavy as aluminium, but about half the weight of lead.
The fire had very hot moments and contained lots of charcoal and aluminium cans (that did not melt).
>METRIC SYSTEM ONLY
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>>8075923
I filled it up to 600ml and added the metal.
The density is a bit inaccurate as i had to measure the water level with a millimeter ruler.
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>>8075923
Seems like tellurium, honestly you just have to google the density and you get a metal that matches what you described almost perfectly.
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It's tin

I mean, why is /sci/ so dismissive of everything that isn't some useless physics equation?

The "Field Purity" comic and the Jacob Barnett memes have done more damage to this board than any other meme on any other board
14 posts and 1 images submitted.
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>>8075865
That pic is mostly bullshit.

Yes, the field purity comic has damaged /sci/, but a lot of the memes concerning non-math/physics fields are mostly banter... And the few kids that take them seriously and spam them in threads are extremely easy to dismiss. I'm pretty sure even the serious math or physics majors cringe at those memes when used in seriousness.
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>>8075865

>that occupy democrats watermark
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>>8075865
>Are they right?
If you're insecure enough to even consider it then yes in your case they are.

Once you've been published and praised by world renowned researchers you tend not to care what some idiot on the internet says. Especially not some butthurt idiot who got made fun of for having retarded ideas and not understanding math. /sci/ is one of the best boards on the internet precisely because people here don't need the pretentious niceties to feed their egos from other math impaired fanboys playing pretend scientist.

I'd post my research gate profile to back me up, but the type of faggot that usually critiques /sci/ isn't even in STEM academia anyway so wouldn't understand the significance of my H-factor.

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How does /sci/ deal with the fact that whenever they learn something cool and interesting, that they'll end up forgetting about it in a month, and won't even be able to talk about it with people?

Ive created flash cards in anki, with information ive read about, just so I wont forget it. But. Soon, Ill have thousands of flashcards I would have to go through, just to recite information.

What should I do?
13 posts and 4 images submitted.
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Compile it all into a fact book, then publish it.
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>>8075796
>How does /sci/ deal with the fact that whenever they learn something cool and interesting, that they'll end up forgetting about it in a month, and won't even be able to talk about it with people?

Depends. With literature I have nearly total recall because of how much I have read. I can remember everything fairly easily because of all the associations and the fact that it's an ongoing study.

With math it's a little different because you have to specialize and then focus on an area of study.

But who are you going to be talking to about math apart from your classmates before a test? I have a pop-sci friend that likes to go on about paradoxes all the time; I'm sure he thinks they're 'cool and interesting', but there's a lot better conversation to be had than talking about science with people. It's a mostly solitary pursuit best kept between you, your lecturers and classmates.

It sounds like you're talking about reading something on wikipedia and then forgetting about it. Don't be a casual hobbyist man, you'll build up a lot of references just from ongoing study.
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>>8075796
I don't forget about it. I remember it perfectly. I just don't feel any need to prove myself to you any longer.

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>tfw this will never ever return to earth and will always be travelling further away forever

So why can't we just put nuclear waste into space and make it float away from the solar system forever?
19 posts and 2 images submitted.
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Obvious bait but...

1. Too expensive and
2. Too risky. Tfw rocket carrying nuclear payload explodes in our atmosphere.
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How can voyager steer?
And how the fuck does it have better Data Signal than Vodafone in rural areas?
>>
>tfw go outside and get clobbered with layers of radioactive dust that's been swirling around ever since the Waste Removal Rockit exploded
>tfw my tumor begins to talk
>tfw have a date in an hour

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