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Archived threads in /sci/ - Science & Math - 921. page

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Does "non-differentiability" imply "non-integrability"
84 posts and 12 images submitted.
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Even continuous nowhere functions can still be integrable.
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>>8623687
it implies integration isn't necessary
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Very weird things happen at the quantum level

this is why functions like 1/x is nowehere continuous but has 3 limit points 0, -infinty, +infinty

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does (0/0)=0 or is it undefined? and why can't it = 1 if (n/n)=1. pic unrelated but cringey
6 posts and 1 images submitted.
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we've had this thread three million times already
kys
saged
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>>8630932
because division by 0 is undefined.
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>>8630932
Its equally valid that it equals both 0 and 1 and is therefor undefined under the field axioms.

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Why is discussing the scientific basis for the intellectual gap between the races so taboo?
204 posts and 26 images submitted.
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>>8630078
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Because biologists were overwhelmingly racist crackpots early in the development of the discipline, and people used the scientific authority at that time to justify their racism.
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>>8630078
This is plainly untrue, there are actually lots of papers regularly posted on the subject. What rock do you live under?

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Post Studying/HW music here. Currently listening to vid related.

https://www.youtube.com/watch?v=dsUXAEzaC3Q

If anyone cares, I honestly can't listen to instrumental only music when studying because I end up appreciating it too much and don't get much done. Vocal music is good white noise though. Catchy music makes me motivated too. Others feel free to post personal experience and tips and tricks.
12 posts and 4 images submitted.
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https://www.youtube.com/watch?v=ffrsc3wdBt4
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>>8630014
>music

No noise for absolute concetration
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>>8630016
>Bach
Pleb

https://www.youtube.com/watch?v=IKfe1TtBd6w

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I seriously believe that decimal numbers are just not enough to understand the universe around us.

Numbers are just primitive symbols. They are not much enough, not powerful, not consistent. Humanity will be doomed to stay far from understanding reality if they don't change the lane.

Math is simply against physics, and that's why you have lots of improbabilities and impossibilities roaming in your minds. Once you understand this I'm afraid it'll be quite late.


Call me troll, call me autist or some other stupid names, that won't change the truth.

4th dimension isn't real. Actually there are no other physical dimensions than "3rd", they are just named imaginations nad false positives of math.

time is not a dimension, what you think temporal dimension is how you perceive the events ongoing, which are just waves.

Yes there are parallel universes, but not inclined into each other.

There is really a colossal string coming right through the middle of the universe, end to end.

Everythings made out of vibrations and waves

Speed of light isn't the barrier. it's just speed of the light. Matter can go beyond that point, but image would still appear in the speed of light.


Please get rid of your delusions and open your eyes.
I'd start researching better ways right away if I were you.

Good day.
13 posts and 1 images submitted.
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What the fuck
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>>8629966
Do less drugs, study more. Maybe you'll have something valid to say.
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>>8629966
>I seriously believe that decimal numbers are just not enough to understand the universe around us.Numbers are just primitive symbols. They are not much enough, not powerful, not consistent. Humanity will be doomed to stay far from understanding reality if they don't change the lane.Math is simply against physics, and that's why you have lots of improbabilities and impossibilities roaming in your minds. Once you understand this I'm afraid it'll be quite late.Call me troll, call me autist or some other stupid names, that won't change the truth.4th dimension isn't real. Actually there are no other physical dimensions than "3rd", they are just named imaginations nad false positives of math.time is not a dimension, what you think temporal dimension is how you perceive the events ongoing, which are just waves.Yes there are parallel universes, but not inclined into each other.There is really a colossal string coming right through the middle of the universe, end to end.Everythings made out of vibrations and wavesSpeed of light isn't the barrier. it's just speed of the light. Matter can go beyond that point, but image would still appear in the speed of light.Please get rid of your delusions and open your eyes.I'd start researching better ways right away if I were you.Good day.


its not uncommon for people who don't understand things to assume that those things they don't understand must be incorrect.

you seem to have fallen into that category.

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Does raw garlic still keep its antibiotic properties if I first leave it out to dry in the open for a couple of hours to avoid bad breath? I'm trying to be cheap about my urinary tract infection.
9 posts and 1 images submitted.
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>>8630712
I think the antibiotic effects of garlic works if you've eatin them before the disease. Because it probably just boosts your immune system rather than fight diseases like pills.

I mite be wrong tho.
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>>8630712
Are you too cheap to buy toothpaste and floss?
>>
If you've got UTI's the recommendation is cranberries

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Trying to run some simulations in excel. Need your help, /sci/.

How do I generate all permutations of sets of 4 numbers that add up to 100? (Related, how many permutations of sets of 4 numbers exist?)

If anyone knows how to code this in Excel/R/Python/Matlab, please share. T-thanks, senpai!
10 posts and 1 images submitted.
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Tried the brute force way of (1,1,1,97), (1,1,2, 96), etc but that seems really dumb. Is there a smarter way?
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Choose 3 monotonic integers x1,x2,x3 between 0 and 100 inclusive. Then consider the 4-pair (x1,x2-x1,x3-x2,100-x3). If you require that, for example, (1,1,1,97) is in the same equivalence class as (97,1,1,1), then the answer is nontrivial.
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Thanks so much!

Is there no way to generate an exhaustive list, then?

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Anyone who has the time to help with some Python?
10 posts and 4 images submitted.
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>>8630637
Normally I'd tell you to go to >>>/g/ but there's been too many Trump/AGW denialism threads recently. So shoot.
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>>8630661
going to post a screenshot but first gonna try to explain it

i have a dictianry with multible values for every key and i need to write a function that will go through every key and then value and then put every individual value through a simple letterscrambler.

when thats done the program should make a new list with the same keys but new values...

hard to understand i know but maybe the screenshot will help
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>>8630661
here ya go.
i've fucked up the return line but what about the rest

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Good morning,

I have a question about "normalizing" data. Basically, it refers to the process of applying a non-linear transformation (such as a log function) in order to shift the shape of the data's distribution to something that more resembles the normal distribution.

My question is, why are we allowed to do that? Wouldn't the process bias the results? Isn't this basically a new data set altogether?

I realize that the answer is usually given an inverse transformation, but I still don't understand why its valid to analyze the data in its "morphed" stage.

If anyone could point me in the right direction that would be great.

Thanks.
6 posts and 1 images submitted.
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>>8630610
Monotone transformation
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>>8630610
Monotonic transformation
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>>8630610
Gin Tonic transformation

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Okay i know this sounds stupid for you guys at /sci/ but i really suck at math.

I am incredibly good at everything and i get the best grades but for some reason math is the only thing that is hard for me to understand. I have practised so much and i have been to extra classes but whenever i see my mathbook my brain just shuts down.

I have a test tomorrow and i am practising right now could anyone of you help me? For example how do i solve:

T * 1/(T^3)

I have no idea what i am supposed to do here???
15 posts and 5 images submitted.
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that's not something you 'solve'

what EXACTLY does the question ask you to do?

simplify? in that case its just 1/(T^2) since a T cancels on the top and bottom
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>>8630493
I need to simplify it.

And if i have 7a^4 * 1/a^6
How would i do that?
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>>8630503
Could you wxplain ehat i am doing wrong here?

http://www.iflscience.com/environment/trump-administration-orders-communications-blackout-for-us-scientists/
6 posts and 2 images submitted.
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>>8630453
So amazing to see frauds who call themselves scientists are getting BTFO left and right.
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>it's mostly laymen and leftists getting upset about it
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do you realize what website you just linked?

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This is a graph of a probability mass function.
Can somebody explain why the values are not weighted evenly? I don't get it.
7 posts and 1 images submitted.
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define 'weighted evenly'
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>>8630365
Why is it not uniform?
For instance each probability should be 1 / 3.
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>>8630370
well if weighted evenly means they all have the same probability, then its not evenly weighted since none of the probabilities are 1/3

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Is there any chance that dark matter isn't real and that the universe is primarily made of baryonic matter?
15 posts and 3 images submitted.
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I mean, maybe we just mis-measured the mass of the universe or whatnot?
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Is that, like, within the realm of possibility?
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And are we as alone in the universe as I am in this thread?

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Is the math that is being taugh in elementary school and early high school already solved or there has been research into it lately?
6 posts and 1 images submitted.
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>>8629104
Math is just a succession of trivialities, "elementary school" math is no less trivial than "research" math, so yes there has been research into it lately.
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>>8629135
got any example of latest research done in arithmetic?
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>>8629104
Which one is Griezmann?

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Explain to me /sci/ how a blind person who witness the first Trinity test was able to see it?
9 posts and 2 images submitted.
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Got blinded during the test.

Boom.
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>>8628331
>Got blinded during the test.
Nah, She was blind before the test driving with her sister in a car 50 miles away.
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>>8628316
by lying

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