Archived threads in /sci/ - Science & Math - 617. page
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Does anyone here have knowledge of extreme value theory in statistics or engineering?
I've recently learned that the maximum of a large number of independent, identically distributed normal random variables is a approximately distributed like the Gumbel distribution.
But I have not been able to find anywhere how to derive the parameters of that gumbel distribution from the mean and variance of the normal random variables whose maximum is being taken.
e.g.
If Xi are independent distributed Normal(mu , sigma^2) then max{X1, X2, X3, ... , X100000} is...
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This is /tv/
We have waifus and memes
where in the last part of the post, mu is the mean of the Xi normal variables and sigma^2 is the variance of the Xi normal variables.
and the normal variables are i.i.d.
Well I know someone in my lab works on this sort of stuff.
>tfw you'll never be a protein to exhibit some useful, important function for your host body
Why even live, brehs...?
>>7666555
checked
>>7666555
iktf
>>7666555
Could be worse. You could a protein in a shitty person like you.
>checking double trips
Is lattice theory the most underrated topic in math?
>>7666487
Yes. So much so that no one wanted to contribute to this thread
>>7666487
Yes.
And universal algebras come in second.
What are the advantages?
If it's not a molecule it's a...
Ionic compound?
you mean.. you mean science is a house of cards? don't touch?
>>7666473
or a formula unit or a radical or a transition state or an element or an isotope.
>>7666485
I mean I can't remember, fmi, what you call things that aren't molecules
Riemann just got btfo
http://www.independent.co.uk/news/world/africa/opeyemi-enoch-nigerian-professor-solves-156-year-old-maths-problem-a6737846.html
nice :D
http://gizmodo.com/sorry-the-riemann-hypothesis-has-almost-certainly-not-1743014788
>>7666469
>gizmodo
So, if someone goes to the Moon and finds no flag there would it mean the landing was faked?
Yeah, if there's no flag next to the footprints, the rover and the remains of the lunar lander, it was all a hoax.
catching nasa red handed or giving the finger to tinfoils. I'm so excited this might be decided in our lifetime at last
>>7666424
They only put a lander on the moon to trick people into believing the moon landing hoax
Does it exist a complete Mathematics guide? I mean something that starts from the beginning (like the 4 operations) and arrive to explain everything that someone can learn attenting a master degree in Mathematics?
>>7666378
algebra textbook, precalc textbook, calc textbook, combinatorics textbook, analysis textbook, linear algebra textbook, abstract algebra textbook, topology textbook, complex analysis textbook
>>7666378
Nicolas Bourbaki
Not really.
You have two parents.
Your parents have two parents each, making the total people in your lineage at that generation four.
Carry on the sequence (2, 4, 8, 16) and you get 2^n.
Now if we go back 2000 years, then n will mostly likely be around 60, because on average generations are just under 30 years apart, and 2000 / 30 ~ 67.
Plug 60 into 2^n and you get 1.1529215e+18.
That means, 2000 years ago, 1,000,000,000,000,000,000 people were alive and had offspring to produce you.
Where is the flaw in this?
That means, 2000 years ago, 1,000,000,000,000,000,000 people were alive and had offspring to produce US.
you are describing the genepool as a whole
but an individual is only related to a fraction of year 15 population.
also the generation gap should also be a complex number
...
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>>7666372
How many of those reproduced?
/sci/ im doing pretty shit in calculus right now and just need to know how bad you guys were doing before your grades were curved/lowest exam score was dropped.
>inb4 hur durr grading curves
>being american
>>7666362
> Being subjected to a class wide sigmoid function for grades
> being a citizen/resident of the United States
ISHYGDDT
We shitposting in here
>>7666367
thanks for the bump i guess
I got a 60% on a graph theory midterm but after the curve it was a 100% because it was the high score in the class.
I asked the prof and he said an average student who studies very hard should get a 50% on his exams before curving and anything above a 50% is considered very good work.
I kinda hate curves though.
Rank all the university STEM courses /sci/, I need to choose one.
pure math > applied math > physics > chemistry > bio/life sciences > any engineering > computer "science"
what the fuck kinda threads are this.
rank them by what?
just choose the one which interests you.
unless you have luck or are really smart, you will be struggling the same in every area.
if you want money you're dead wrong pal
>>7666331
1. Geomatics
2. Equestrian Science
3. Physics
4. Chemistry
5. Biology
>Condensed list with all the important shit
Can I learn Calculus 1 on my own? If so, how so? I really want to learn and all I have is pic related but the way its written is a little confusing. Any anons can provide some help or guidance? Thanks!
>>7666320
I haven't taken it, but I know Coursera has one Calculus-course you can take online.
>>7666320
i feel you senpai,trying to learn calculus too by myself and its not easy at all.
>>7666320
I want to prepare myself for next semester. I had to drop it this semester because I had a terrible teacher and I was a fool who never went to the tutors.
What if the universe is actually finite?
It probably is.
>>7666244
It is and we know it is you dumbass
The space outside the Universe is the real issue
>>7666244
>outside the Universe
Outside our planet, more planets. Outside our solar system, more solar systems. Outside the galaxy, more galaxies. Outside the universe? Hmm i wonder
why dont all elements have the three states?
(gas, liquid,solid)
>>7666175
They do, your premise is incorrect.
Next question!
>>7666179
Show me how light is solid
>protip: You can't
>>7666179
Really??
They do??
but i heard that if you cool helium to 0 Kelvin
its liquid!
and could metals vaporize?
could you have iron gas?
So im talking to a girl who goes to MIT. She studies neuroscience and premed, and works at a neuroscience lab. Is there any entry level stuff i could read on neuroscience so i could talk to her about it?
You're fucked, just give me her number
Should have majored in neuro m8
>>7666049
Read the sticky.
>>7666049
Since there are threads which are more retarded, and since neuro is my area of specialization, two good texts are "Neuroscience" 5th edition by Purves (and others) and "Principles of Neural Science" by Kandel (and others).
What would happen if you launched a diamond into the sun?
How big is the diamond? What kind of diamond? How fast is it going? We need more details here.
>>7666038
The Hope Diamond, as fast as we can launch something of that size.
>>7666042
45.52 carats (9.104 g)
Type IIb diamond
