Archived threads in /sci/ - Science & Math - 1865. page

>>7918250
No, f(x)=|x|

Also, you're not guaranteed there even is a derivative
https://en.wikipedia.org/wiki/Weierstrass_function

>>7918259
suppose the function is differentiable. does it follow in that case?

>>7918263
Nope, standard example is [math]f[/math] defined by [math]f(x) = x^2 \sin(\frac{1}{x}) [/math] for [math] x \neq 0, f(0) = 0 [/math] iirc. That function is differentiable everywhere, but the derivative spazzes out around [math]x = 0[/math].

>>7918157
You could get to his level through hard work. But his mind was trained his whole life by people surrounding him and himself. While you sit and complain on 4chan. That's why you are a brainlet, a life of addictions.

It makes me happy that he's very smart. So many people get rich by being horrible and/or lucky.

I would like to see his transcript.

Isolate a single variable and solve, then go back and solve for the others. Literally how hard is this?

>>7918190
Only z can be found that way.

>>7918192
Find z, you have it in integers. use it as a solution to the other equation, assuming they belong to the same system. (YOU MIGHT WANT TO USE A LOGARITHM)

>>7918064
Matlab, octave or matplotlib

>>7918083
is rstudio any good at plotting graphs?

IDL is great for graphing

What makes no logical sense is your argument

>>7917871
give it a minute to sink in.

>>7917872
Nonsense doesn't magically stop being nonsense given a minute to sink in, anon

>>7917486
amplitude modulation
or
frequency modulation

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pic related. It's actually far simpler than it seems.

the frequency is increased to transmit a 1 and decreased to transmit a 0

your radio listens to the signal, detects shifts in frequency, and converts it to a digital signal

>>7917276
yeah they would never do multiple cargo launches and assemble in orbit, its too damn difficult and expensive

>>7917371
>>7917276
It's pretty funny, since ULA keeps pushing multi-launch mission architectures and orbital propellant depots.

>Yeah LEO, whatever that's small fry stuff.
SpaceX has done GTO and BEO launches. Falcon Heavy looks like it will be the most capable rocket to any trajectory until the mid-20s, when SLS testing is done, or SpaceX's own next-generation superheavy is done.

>>7917371
Assemble in orbit of what? Earth? Makes no difference, still in the same gravity well, may as well just go straight there. Mars? So now not only do you want to go there you want to build a space station above Mars too? Also doesn't solve the food problem, this can't stay in space forever.

its actually expected. too much theoretical math is like masturbating too much; it taxes the organ heavily

My wife would argue that the answer is yes.

>>7917193
Yes. Doing any form of heavy logic, be it math, programming or chess, for a prolonged time might trigger mental illnesses. It is not what our brains are intended to be used for.

So what is the implication for the hundreds of studies supporting climate change?

>>7916941
>psychology
>hard science

lol, theories in hard sciences can be disproven at any time.. the fact that people dont take soft sciences like psychology with a grain of salt just kills me.

>>7916941
>psychology
>bullshit
Shocking!

>>7916840
What kind of autistic /tg/ manchild put this together

>>7916840
assuming enough energy is required:

build a colony of small robots that would dig into it and rearrange the material inside the asteroid layers which could be separated and lunched into the earth by recurring space ships.

if you have a colony of robots which can operate in that fashion the problem becomes energy supply and distribution.
I can't imagine energy distribution would be that difficult, just give robots the ability to share energy as required, and keep a few of them at reach to supply enough energy for the entire colony.

the real problem is energy, could be solved if we prefect fusion.

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>>7916840
Rollan

>>7916586
If the space changes accordingly how would you know there was any change in height?

>>7916586
Unlikely, intermollecular forces far outweigh the expansion of space. Besides, just because expansion happens uniformly on an intergalactic scale, there's no way of knowing if the same holds true on a smaller scale.

>>7916601
>intermollecular forces far outweigh the expansion of space

source? genuinely curious on this subject

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>>7916540
Well duh, (1,1)≠(3,3)

>>7916540
ah but 3/3= 1 not .(9).

so the proof is wrong

qed

>>7916575#
You are wrong you still assume basic mathmatics regarding multiplaction of 10 in decimals doesn't apply to the fractionalization of three thirds, whis the proof is about. Granted the person who wrote this can't write

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Secondary sexual characteristics.
Mostly hips and boobs.

>pheromones? fair enough
I think the consensus is that this is 99% myth, BUT...
Once upon a time, I was dating a beautiful princess, let's call her Gertrude.
But then I went to the beach with friends, without Gertrude (shit happens).
Dancing close with two female friends, their bodies pressed close to mine, I was struck by the fact that they didn't smell like Gertrude.
They smelled fine and all, but they weren't MY woman.
...but hey, who cares?

True story.
(oh, and if it helps, I found out later Gertrude was cheating on me the whole time I dated her, about 3-4 months).

>>7916536

fertility likelihood. you want to pass on your genes.

>>7916536
I'm gay so I wouldn't know. For what it's worth, I cant imagine how anyone finds women attractive either.
>dudes r soft and warm
hnnng

>>7916457
bump

>>7916457
I would recommend not giving elemental potassium to children.

>>7916457
Add a few ml of sulfuric acid to a test tube or ignition flask. Carefully pipette an equal amount of ethanol on top of that. You should see an interface. Drop some potassium permanganate into the tube, a few grains will do. Make sure the tube is in fume hood and secured to a ring stand. The acid generates ozone from the permanganate which oxidizes instantly in ethanol. Generates a lot of heat so don't touch the tube.

I dont know or care what is in tap water but when I boil it to get distilled water, whatever's left in the boiling flask looks like a bunch of salts, which isn't surprising desu.

>>7916327
boiling water doesn't distill it though, it just boils it

>>7916327
i can tell youre a seasoned chemist, anon. finally someone who has done their research.