Sup, this has been bugging the shit out of me for days now, can anyone help?
>>9154953
>all the answers are prime
>>9154953
git gud
>>9155519
WITH NO SURVIVORS
Can we have a math puzzles thread?
Is it possible to make money from Sportsbetting using Elo Ratings from FiveThirtyEight?
To me, it seems unlikely, because the Elo Ratings would not only have to be better predictors of sporting events than the Sportsbook, but they would also have to overcome the 4-5% advantage that the house gives itself.
In addition, sportsbooks have to put their money on the line with their predictions, whereas 538 or any other site offering predictions doesn't lose any money when their projections are marginally out.
Despite my pessimism, I would like to know if anybody on this board has consistently beaten the house using this or any other statistical method, particularly with the NFL season starting.
Step 1: send 4000 emails touting your lock prediction game for this weekend. half pick home, half pick visitor.
Step 2: throw away the 2000 addresses where you picked the wrong team, then send a mail to the remaining 2000 bragging about your prediction and making a prediction for this weekend, half pick the home team, half pick the visitors.
Step 3: throw away the 1000 addresses who you gave the wrong pick
Step 4: send message to the remaining 1000 addresses bragging about your two predictions, saying that if you want to get any more winners you'll need to buy my $99 pick'em service.
>>9154976
lol
>>9154946
I don't know about Sportsbetting, but unless all betting websites use the same (or one of few) ratings to predict their winners, there got to be sites with bad predictions that are beatable, just because there are so many betting sites.
If a pulley was attached to a mass of x kilograms on the ground and another mass of also x kilograms y meters in the air jumped on the other end of the pulley but only grabbed on to after free fall for 1.5 would the force exerted on it be larger? Both masses are equal and g is constant thanks to gravity but isn't the mass that is falling for 1.5 seconds have a higher force because of its higher velocity?
Velocity does not affect force. An object at rest has no acceleration because all forces acting on it cancel out (gravity going down, normal force going up). Similarly, an object that is going 10 m/s on a frictionless plane has the exact same forces acting on it, and thus the same acceleration (0 m/s/s).
>>9154864
But the mass grabbing on the pulley would decelerate at a rate of 1.5g after grabbing thus exerting more force
gorilla bump
>definition requires definitions that are out of chapter
>>9154653
>Prof says proof of lemma is trivial
>Student asks Prof to prove it anyway
>He can't
>Prof tries to prove it all weekend
>Can't
>Prof looks up original paper on the subject
>Authored by him
>"Proof of lemma is trivial"
>Hfw
>>9154653
>theorem is presented as a definition
>>9154962
>Prof says proof of lemma is trivial
>Student asks Prof to prove it anyway
>He can't
>Prof tries to prove it all weekend
>After spending a dozen hours on it, he solves it
>"Ah, it was trivial after all"
Can anything travel faster than The Speed of Light?
>>9154627
thing inside of black holes go faster than light
Takyon!
>>9154627
Shadows
>String Theory
>Black Holes
>Global Warming
>Gravitons don't exist
>the atomic bomb exists
>"emergent property" is a scientific term and not equivalent to "and then it magically happened!"
>String Theory
What the fuck did you just fucking say about my P H E N O T Y P E, you little bitch?
Things OP believes
>I'm smarter than Edward Witten
>I'm smarter than Albert Einstein
>I'm smarter than (((them)))
Gravitons probably don't exist...
Hey guys im taking intro to comp programming. currently learning python. any tips to getting started and really learning the functions it gives.
>>9154531
kys
>Any sufficiently advanced technology is indistinguishable from magic.
This statement is bullshit. Discuss.
>Any sufficiently ignorant person can't distinguish between complex topics and jargon
Ftfy
Oh, sorry, Clarke was assuming that readers would be self-aware of their own limitations and wouldn't be entitled ignoramuses who think that "all explanations are going to come to me if I wait long enough for other people to do it for me."
>>9153647
Why do you believe it's bullshit? If you were to take a neanderthal out of his time and to our present and showed him a computer, do you think he'd interpret it as anything other than magic?
From there, imagine there's a future human who does the same thing with us and that they're as far beyond us with technology as we are beyond the neanderthals. Doesn't it follow we'd see the amazing things they have in that time as magic too? Granted you could say we'd be able to assume there were some rational explanations behind how these miraculous contraptions, but without knowing anything about how they worked it would probably at least *seem* like magic from our perspective.
Are you ready, /sci/?
>https://www.youtube.com/watch?v=9M6Zvi-fFv4&feature=youtu.be
Webcast starts in 11 hours.
The cost savings. Tens of millions.
>>9153564
Why's it look like it was made by nignogs
Holy kek what am I looking at? Is that duct tape?
We had all the best mathematicians be Aryan until set theory, and then boom! Tons of Jews (Türing, Cohen, Weil, etc.). Was Poincaré right? Is set theory a disease? Does it put the ball squarely in the Jewish corner?
>>9153243
Well, I don't know about math, but it happened to music. It was all pure and good until Schoenberg came along. Then the Jews came flooding in, claiming that aesthetics is arbitrary and what have you. It's no wonder all popular music is shit.
>We
what papers have you published anon?
>>9153711
A few.
>Ramapithecus: partial orangutan jaw passed off as a man
>Australopithecus: misidentified chimp/gorilla remains
>"Homo" Habilis: apes presented as people
>Homo Erectus: deformed hunans passed off as missing links
>Neanderthals: odd race of humans passed off as ape-men
>Cro-Magnon: regular humans
Really makes you think.
The problem with this kind of thinking is that, hypothetically speaking, if evolution was TRUE, you could still come up with these same complaints. Therefor the argument is worthless trash.
You just set up an imaginary point in the evolution of man and decided that everything before that point is just a mutant monkey and everything after that point is just a mutant human.
>>9152861
>Really makes you laugh
ftfy
get yer boards out everyone
What are your thoughts on channels like Numberphile, 3Blue1Brown, Mathologer, PBS Infinite series, Welch Labs, and other channels dedicating to explaining/discussing topics in Mathematics? Is a channel like Numberphile misinformative at explaining topics like Infinite Sums (Specifically towards their videos on the sum of all positive integers equaling -1/12) or are they just mathematical showmen whereas they talk about topics in an interesting (but not completely rigorous way) so that people who find interest in the topics they discuss get the inspiration to look for rigorous explanations or learning those said topics entirely? Also rank these channels from best to worst so there's plenty of arguing in this thread too.
[spoiler]And do make sure to post more meme images of numberphile, I live off of them[/spoiler]
>>9152798
Goddamnit the spoiler shit didn't work
>>9152802
not every board has that feature
they're comfy for a brain warmdown before bed
what's the minimum thickness of a line? i mean, it can't exist without some thickness right? if it has zero thickness, then it would just be nothing.
>>9152760
a mathematical line has a thiccness of zero
>>9152761
but then wouldn't the space it occupies be zero, contradicting it being a line? its dimension would be zero, but then you say it can map a set, and not just that, but it can fill up spaces and whatever. how is this possible? doesn't that contradict it having a dimension of 0xR?
Alright fine you fucking plebian. There's actual rigorous definitions of how space filling curves work, but you clearly don't know them and I'm not going to spoonfeed you. For your imbecilic, 3-D monkey brain it would suffice for me to just lie to you. So I will. A line doesn't have zero thickness. It's thickness is the smallest positive number greater than zero.
>but that number doesn't exist
You don't even fucking care if it doesn't exist. You can't even prove it doesn't exist because you don't know/care about rigor. You just want to be right and appear smart and curious. You're not curious. If you were you would read. You can learn the magic or you can swallow the bullshit I just fed you. The choice is yours.
>math course uses MyLabsPlus
Why can't Pearson just fucking die alreafy
>>9152723
When you're one of the largest publishing conglomerates in existence, you don't have to pander to the plebs who will be required to pay regardless of their unimportant opinions.
>>9152723
Well, they only have them for basic courses non-math majors take, anyway.
>>9152723
maybe stop taking calculus for engineers then
Name ONE(1) integral you can do that wolframalpha can't
3/(sin(x)+3^x)
>>9152325
[math]\int_0^{\pi/2}\frac{x^2\log{(\sin(x))}}{\sin^2(x)}dx=\pi\ln{(2)}-\frac{\pi}{2}\ln^2(2)-\frac{\pi^3}{12} [/math]
Exact values only.
velocity = c x (sqr root/sqr root)