P1ayer-1/eli5-questions · Datasets at Hugging Face

title stringlengths 1 312	post_id stringlengths 5 7	over_18 bool 2 classes	subreddit stringclasses 1 value	link_flair_text stringlengths 2 63 ⌀	self_text stringlengths 1 32k ⌀
ELI5: Why is a circle exactly 360 degree	sesbi5	false	explainlikeimfive	Mathematics	[removed]
ELI5: Why do numbers keep going but letters don't?	fsi0hg	false	explainlikeimfive	Mathematics	[removed]
ELI5: square roots	j7vnth	false	explainlikeimfive	Mathematics	having covered in a maths class the concept of square roots, the idea has rolled off of me like water off a duck's back, and any explanation I can find online are laden with impenetrable jargon and equations. So I humbly request that this concept be explained in the simplest of simple terms to someone who sees mathematics as a hateful lovecraftian old one.
ELI5: What are tip percentages?	j7ndl2	false	explainlikeimfive	Mathematics	[removed]
ELI5: Could anyone explain to me in layman's term the concept of derivatives? I'm actually doing some self study. As far as i'm concern, its the slope of the tangent line but i'm kinda having difficulty visualizing it. Thanks!	jvsg62	false	explainlikeimfive	Mathematics	null
ELI5 -- How is the derivative of x^2 (at any value for x) 2x? (Please read below)	tbj4y4	false	explainlikeimfive	Mathematics	[deleted]
ELI5: What is the difference between Lasso and Ridge regularisation types in logistic regressions?	gld3ub	false	explainlikeimfive	Mathematics	null
ELI5 PLEASE ANSWER	gkznxg	false	explainlikeimfive	Mathematics	[removed]
eli5 Please answer.	gkzoa5	false	explainlikeimfive	Mathematics	[removed]
ELI5: what are imaginary numbers and how do they help mathematicians?	glffjs	false	explainlikeimfive	Mathematics	[removed]
ELI5 - How do I understand the "I walk one mile south/1 mile west/1mile north and end up in the same place" riddle?	rgqy92	false	explainlikeimfive	Mathematics	[removed]
ELI5: Why are polls so different from each other?	imuj74	false	explainlikeimfive	Mathematics	[removed]
ELI5: How could anything infinite exist within a finite universe. Like Pi for example.	imzxcb	false	explainlikeimfive	Mathematics	[removed]
ELI5: What is covariance and how does it describe the relationship between two variables?	evwt3l	false	explainlikeimfive	Mathematics	I'm having trouble understanding how covariance measures the relatedness between two variables. What is covariance and how does it relate two variables?
ELI5: How does a savitzky-golay filter work?	ew2cw3	false	explainlikeimfive	Mathematics	I know it can be used to smooth a data signal, but how exactly does it do that?
ELI5: Fibonacci Sequence: what is it?	lwu9fm	false	explainlikeimfive	Mathematics	I quite often hear people talking about Fibonacci and have always been curious on what it is, however all the explanations I’ve seen/heard have been too technical for me to understand. Thanks!
How is math racist? Eli5	lwwfgf	false	explainlikeimfive	Mathematics	[removed]
ELI5: What do they mean by "additional" % lower risk when talking about COVID vaccine effectiveness?	lwz7qy	false	explainlikeimfive	Mathematics	[removed]
ELI5: What gives Michio Kaku the idea that the "Theory of Everything" equation would be just an inch long?	sv7urc	false	explainlikeimfive	Mathematics	[removed]
ELI5: Before numbers were invented how did people count things?	c645mg	false	explainlikeimfive	Mathematics	null
ELI5: Why is the significance of prime numbers?	c6k6t7	false	explainlikeimfive	Mathematics	[removed]
Eli5 What is 6÷2(3+3)= ?	yalhvm	false	explainlikeimfive	Mathematics	[removed]
ELI5: if y=2x-1 how is that plotted on a linear graph?	icluyk	false	explainlikeimfive	Mathematics	[deleted]
Eli5 How does 2+2=5?	ico736	false	explainlikeimfive	Mathematics	[removed]
ELI5	ics7dk	false	explainlikeimfive	Mathematics	[removed]
eli5: What are the possible applications or breakthroughs that could arise from solving the Riemann Hypothesis?	sp28zj	false	explainlikeimfive	Mathematics	I'm very interested in the connection between advanced maths and physics etc but I have no background in mathematics so a lot of the explanations of the deep stuff are really difficult to parse. I can't get my head around the importance of prime numbers or why their discovery could unlock new advances in other disciplines.
ELI5 why Gödel’s Incompleteness Theorems is very important in mathematics and philosophy? I’ve been reading but I somehow can’t absorb the technical stuff	mdh19g	false	explainlikeimfive	Mathematics	null
Eli5: What does ... in matrix mean?	vjqo06	false	explainlikeimfive	Mathematics	[deleted]
ELI5: How did Eratosthenes knew exactly at what time to measure the two shadows 800km apart to calculate the curvature of the Earth?	cf1pk1	false	explainlikeimfive	Mathematics	I know the math of heights and distance, but given that there were no watches at the time he was alive, how did he know when it was the right time to measure the second shadow to compare with the first? At 800km, it's not like he called somebody or ran quickly...that's a multi day trip at best...
ELI5: What is the fibonacci sequence and why is there such a fascination with it?	cfe76r	false	explainlikeimfive	Mathematics	null
ELI5: Why can you multiply by zero but not divide?	p8db3k	false	explainlikeimfive	Mathematics	Go easy on me.
Eli5: Missing dollar	p94h7y	false	explainlikeimfive	Mathematics	[removed]
ELI5 Why does fourrier series (complex) include negative frequencies ?	ibpzcf	false	explainlikeimfive	Mathematics	We know negative frequencies dont actually exist, and I've heard it's "designed" solely to make the math work, but how so? and why do these negative frequencies not appear on other representations of fourrier series (such as trigonometric one) ?
ELI5: How is math applicable in game development? Can you list what's the most useful math subjects to learn for this goal? Does a game engine do all the "hard" math for you?	n7hnuj	false	explainlikeimfive	Mathematics	[removed]
ELI5: How does orbital dynamics work?	n7xpj4	false	explainlikeimfive	Mathematics	[removed]
Eli5 The commutative law of addition	xw9xyh	false	explainlikeimfive	Mathematics	For homework tf is this
ELI5: Why does it matter when others play the “wrong” move at a blackjack table	xwiuio	false	explainlikeimfive	Mathematics	The odds of the other person getting a card they want doesn’t necessarily change, so why does it effect anybody when a player doesn’t play by the chart
ELI5: How is it possible to calculate on encrypted data with homomorphic encryption?	f298rn	false	explainlikeimfive	Mathematics	Given the circuit `a + b = c`. How is it possible to calculate with encrypted parameters (a and b) an encrypted result (c) with homomorphic encryption? What is the fundamental idea to make this possible?
ELI5: Is it possible to keep raising your bet amount with a 48 : 52 chance and come out ontop.	f2jkc3	false	explainlikeimfive	Mathematics	[removed]
ELI5: P value, confidence interval, odds ratio and null hypothesis.	ht92j3	false	explainlikeimfive	Mathematics	Also a simply-explained way to calculate all this would be swell. I'll be playing around with these values in my research paper regarding risk factors of amputation among diabetic foot patients. I'm practically a math idiot who didn't expect math like this after entering medical school. n.b. Obviously I'll be using MS Excel to crunch the numbers, given the large data set
ELI5 what is the purpose for each of the operators in calculus and what do they do?	jlvgwz	false	explainlikeimfive	Mathematics	[removed]
Eli5 about Standard Deviation	jlyh86	false	explainlikeimfive	Mathematics	[removed]
ELI5:how are the relative value of chess pieces derived?	oxesxz	false	explainlikeimfive	Mathematics	I know what they are, but online sources fail to explain how they were originally calculated. Why 1,3,3,5,9 and not something else like 1,2.5,3,6,10?
ELI5: why is pi 3.14…. What is so special about this exact number and how did we know this invite number is a circle?	oxp29p	false	explainlikeimfive	Mathematics	null
Eli5 how the 800m works	oxmqn1	false	explainlikeimfive	Mathematics	[removed]
eli5: If 1 degree celsius is 33.8 degrees fahrenheit, how come 67.6 degrees fahrenheit isn’t 2 degrees celsius?	i28gu1	false	explainlikeimfive	Mathematics	I’ve always wondered this and I don’t think I Learned about it in school, it’s so confusing to me
ELI5: How is sampling bias overcome when presenting COVID-19 population statistics.	i1k07a	false	explainlikeimfive	Mathematics	[removed]
ELI5: If the moon moves away from the earth little by little every year, how many years will it take for the moon to look as small as a star at night on earth	i26jw9	false	explainlikeimfive	Mathematics	[removed]
ELI5: Why Is Ten Where We Put the Zero?	ubknp2	false	explainlikeimfive	Mathematics	I don’t even know how to explain this one really. But in numbers why do we choose to make ten double digits? And subsequently why then is 100 and all other squares of ten where we add the extra zeros/digits? Is there something special about ten itself and its powers or was it just chosen randomly?
eli5: If 0 is a set containing nothing, how do negative numbers work, how do you take away from something holding nothing?	uc6c2v	false	explainlikeimfive	Mathematics	I don’t know anything about set theory so this might be completely misunderstanding what 0 is
ELI5: Why is the LCM not called the LCF (factor) instead ?	g2l0t0	false	explainlikeimfive	Mathematics	[deleted]
eli5: Why was Einstein so much better than everyone else? How did his maths change the world so much?	g2kr86	false	explainlikeimfive	Mathematics	[removed]
eli5: what are equivariant corks in advanced math/science?	pjo1v8	false	explainlikeimfive	Mathematics	Just ran into a video of someone talking about equivariant corks and other terms that sound like a foreign language. http://www.birs.ca/events/2017/5-day-workshops/17w5040/videos/watch/201708081333-Wong.html What is she talking about and how is this information used science or examples of real world use cases?
ELI5: In mathematics, when is a result or conjecture considered true without proof? What conditions are needed to be met?	pk355a	false	explainlikeimfive	Mathematics	null
ELI5:Can somebody explain Bayes’ Theorem?	fvi42n	false	explainlikeimfive	Mathematics	I’m kind of struggling to grasp it, in both it’s mathematic and philosophical sense/context
ELI5 : What is the logic behind sin , cos , and tangent exactly?	fvb2ww	false	explainlikeimfive	Mathematics	null
ELI5: What does our choice of musical scale have to do with the number of fingers we have?	fv5uw1	false	explainlikeimfive	Mathematics	[removed]
ELI5: If I flip a coin 10 times, what are my chances of flipping tails at least once?	hdwojx	false	explainlikeimfive	Mathematics	Are they the same chances of flipping heads at least once? It doesn't make sense to me that the answer would be "the chances are 50%, because each toss has a 50% probability," but wouldn't any other answer imply that some sort of causality is going on (i.e., that flipping heads means the next flip has a higher chance of being tails, which is of course incorrect)? (Note: I'm not asking what the chances of getting tails on the final toss are; that would of course still be 50%. I want to know the probability that I get tails, at least once, anywhere in these 10 coin flips).
ELI5: What is the actual use of the median and mode in statistics compared to the average (mean)?	pbhnr5	false	explainlikeimfive	Mathematics	null
ELI5: How do people make portraits with rubik cubes or dices?	pbkpzs	false	explainlikeimfive	Mathematics	[deleted]
Eli5: Was mathematics invented, or was it actually discovered?	pb5kir	false	explainlikeimfive	Mathematics	[removed]
ELI5: What is the Black Scholes model and how does it work?	hzihoe	false	explainlikeimfive	Mathematics	https://en.wikipedia.org/wiki/Black%E2%80%93Scholes_model What is the Black Scholes model. How does it mitigate or eliminate risk in certain financial markets? What are its limitations? And why does it look like dark magic?
ELI5: Why polinomial of degree 5 and above can't have general root formula?	hzenas	false	explainlikeimfive	Mathematics	[removed]
ELI5 - Infinity?	btq1f7	false	explainlikeimfive	Mathematics	null
ELI5: Roman Surfaces, how are they one-sided?	lso38h	false	explainlikeimfive	Mathematics	I understand the moebius strip, it makes sense to me visually, as I can trace the singular line through it's loops. However, images of a roman surface don't give me any idea of the one-sidedness. Can someone please explain how the path flows or why it is not possible to visually represent the one-sidedness (should that be the case)?
Eli5 If I toss a coin 100 times, does the option of getting heads 100 times have the same probability as getting 50 heads 50 tails?	luj0kb	false	explainlikeimfive	Mathematics	My friend is trying to explain why not all possibilities have the same probability but it's not making any sense to me. I thought all possibilities have the same probability.
ELI5: The difference between Standard Error, Standard Deviation and Variance in statistics?	l4tzwb	false	explainlikeimfive	Mathematics	I've read so many explanations and it's still gibberish to me, if anyone is able to explain it to me in very simple terms I would be super thankful!
Eli5	g7deiy	false	explainlikeimfive	Mathematics	[removed]
eli5: playing rpg, rolled dice, d20, got a fucking 49, what are the odds of rolling 2 20s and a 9 successively	g7po3p	false	explainlikeimfive	Mathematics	[removed]
ELI5: What does arbitrary number mean?	dvumbn	false	explainlikeimfive	Mathematics	null
ELI5:How does loot table in games work	ev2qyj	false	explainlikeimfive	Mathematics	How does programmers do loot tables for millions of items that all have different chances to drop when you kill a enemy in big games like path of exile , Diablo, WoW.
What is Standard Deviation? How is it calculated? What's the significance of it?	euh6zc	false	explainlikeimfive	Mathematics	[removed]
ELI5: What is a Fourier Transform and why was it necessary to render the image of the total solar eclipse?	f4mvuh	false	explainlikeimfive	Mathematics	https://reddit.com/r/space/comments/f4l2jv/_/fhrgh2r/?context=1 An explanation of the whole comment would be great. I tried to look up Fourier transform on Wikipedia but it was a lot of math.
What does a high Kurtosis and slightly negative skewness of the X variable mean about my data?	f4nl3g	false	explainlikeimfive	Mathematics	[removed]
ELI5: What is the butterfly effect?	f4upu4	false	explainlikeimfive	Mathematics	[removed]
What does it mean to have a zero or decimal power ?	f594mb	false	explainlikeimfive	Mathematics	[removed]
ELI5: Probability of catching the coronavirus while using a mask and being vaccinated	oncw3k	false	explainlikeimfive	Mathematics	[removed]
eli5 what is abelian group?	ondtf9	false	explainlikeimfive	Mathematics	[removed]
ELI5 subtracting negative numbers from positive numbers	h858lp	false	explainlikeimfive	Mathematics	I feel incredibly stupid posting this considering I'm 24 years old and probably learnt negative subtraction in year 4, but I've been needing to brush up on my maths skills to further a hobby of mine and realised today that the whole concept of subtracting negative numbers from positive numbers being the same as adding a positive number just makes no logical sense to me, and I think I'll go crazy if I can't resolve it. For example, 4 - (-6) = 4 + 6 In my mind the concept of subtracting a negative number from a larger negative number makes logical sense. For example, with (-4) - (-2) = -2. I can see that if I had negative 4, or 4 negatives, and I removed (subtracted) two of those negatives, ie I removed (-2), then I would be left with only 2 of those negatives = -2. So ofcourse I can see that in that way (-4) - (-2) is the same as (-4) + 2, as they both give the same result. However, as soon as this all moves past 0 into the positive realm, the whole sense of it falls apart for me. How can 4 - (-6) = 4 + 6? If I have four of something, four positive integers, how can I remove 6 negative integers? Or any negative integers? I don't have any negative integers, I have four positive numbers. How can I possibly take negatives away from a positive number - I don't have any negatives. Then to suddenly say that removing 6 negatives from positive 4 gives me positive 10?? That just seems like madness to me. And sure I get that in a theoretical sense, for theoretical consistency of the functions of the concepts of adding and subtracting, if (-4) - (-2) = (-4) + 2 then 4 - (-2) must also equal 4 + 2. But in an actual physical logical sense, outside of imagined concepts, for the life of me I can't see how it makes any sense at all. Any assistance would be a huge help! If I can't even grasp the basics of the basics then I'm surely screwed.
ELI5: How does the birthday paradox work?	i9bir2	false	explainlikeimfive	Mathematics	The birthday paradox “vaguely” states that the odds of having the same birthday in a room of 20 people is about 50%. I tried finding the answer alone but no explanation I read helped. Edit: Thank you everyone for your great expectations. I think I get the gist of it now.
ELI5 What does it mean to take a derivative with respect to a variable? How is this different from simply taking the derivative?	i9ru3w	false	explainlikeimfive	Mathematics	Taking calculus right now and I can’t figure out the difference between the “regular” derivative and differentiation with respect to a variable. I really need to know what the latter means as I’m struggling to understand other concepts because of it.
ELI5: Why are limits so important in math?	i9drw8	false	explainlikeimfive	Mathematics	null
Base64 eli5	oglnu7	false	explainlikeimfive	Mathematics	[removed]
ELI5: Quadratic Functions	n1d94p	false	explainlikeimfive	Mathematics	[deleted]
ELI5: true bearings vs compass bearings?	y7zsdz	false	explainlikeimfive	Mathematics	[deleted]
eli5: what is probabilistic theory and why is it so controversial?	ek6bc3	false	explainlikeimfive	Mathematics	null
ELI5: What do natural logs represent?	ftj2mn	false	explainlikeimfive	Mathematics	I'm aware that e is a number and I know how to do math with logs, but I've never understood what their graphs are used for. For example, exponential graphs are used for pratical reasons in a lot of careers to show growth and decay along with interest. I'm wondering if the graph of ln or logs in general has a similar purpose.
ELI5: How is the number of Covid-19 cases calculated if those displaying mild symptoms are advised to stay home and not report?	ftir5z	false	explainlikeimfive	Mathematics	[removed]
ELI5: What is a minimal surface (maths)?	ell55y	false	explainlikeimfive	Mathematics	null
Do extremely long structures built on earth match the curvature of the earth's surface?	ekubzs	false	explainlikeimfive	Mathematics	[removed]
How does one calculate the length of a year?	ekvyhx	false	explainlikeimfive	Mathematics	[removed]
ELI5 what are limits and derivatives?	mkcrhz	false	explainlikeimfive	Mathematics	I can't figure them out. Pls help
ELI5: How did we find algorithms for solving a Rubik's Cube?	fatsry	false	explainlikeimfive	Mathematics	Some steps like the first layer can be solved intuitively, but how did we come up with algorithms for solving different cases? Like did someone fiddle around with trial and error, or was there a mathematical concept for it? And can we find new or more efficient algorithms?
-5 x -5 = 25 but -5 squared = -25	faucfm	false	explainlikeimfive	Mathematics	[removed]
ELI5: Why do humans prefer rectangle interfaces rather than circles or triangles? [US The Office spoilers]	fb3w83	false	explainlikeimfive	Mathematics	[removed]
Can someone eli5 please? The answer just says "Didn't you see it? Then just read the question again slowly, out loud".	hmortg	false	explainlikeimfive	Mathematics	[removed]
ELI5: Simply put, how does the kernel density estimation work and how can we use it on real-life maps?	hmovp5	false	explainlikeimfive	Mathematics	[removed]
ELI5: Why aren't derivatives treated as fractions?	msqobo	false	explainlikeimfive	Mathematics	[deleted]
ELI5: Using a pair how do I decrypt a message given letters were represented by ASCII values For example pair 134 and 10 and need to decode message 111 4 88 57 116 67	mssf27	false	explainlikeimfive	Mathematics	[removed]
ELI5: Why does encryption require prime numbers? A why is it so hard to find massive prime numbers?	frhpk9	false	explainlikeimfive	Mathematics	null

ELI5: Why is a circle exactly 360 degree

sesbi5

false

explainlikeimfive

Mathematics

[removed]

ELI5: Why do numbers keep going but letters don't?

fsi0hg

false

explainlikeimfive

Mathematics

[removed]

ELI5: square roots

j7vnth

false

explainlikeimfive

Mathematics

having covered in a maths class the concept of square roots, the idea has rolled off of me like water off a duck's back, and any explanation I can find online are laden with impenetrable jargon and equations. So I humbly request that this concept be explained in the simplest of simple terms to someone who sees mathematics as a hateful lovecraftian old one.

ELI5: What are tip percentages?

j7ndl2

false

explainlikeimfive

Mathematics

[removed]

ELI5: Could anyone explain to me in layman's term the concept of derivatives? I'm actually doing some self study. As far as i'm concern, its the slope of the tangent line but i'm kinda having difficulty visualizing it. Thanks!

jvsg62

false

explainlikeimfive

Mathematics

null

ELI5 -- How is the derivative of x^2 (at any value for x) 2x? (Please read below)

tbj4y4

false

explainlikeimfive

Mathematics

[deleted]

ELI5: What is the difference between Lasso and Ridge regularisation types in logistic regressions?

gld3ub

false

explainlikeimfive

Mathematics

null

ELI5 PLEASE ANSWER

gkznxg

false

explainlikeimfive

Mathematics

[removed]

eli5 Please answer.

gkzoa5

false

explainlikeimfive

Mathematics

[removed]

ELI5: what are imaginary numbers and how do they help mathematicians?

glffjs

false

explainlikeimfive

Mathematics

[removed]

ELI5 - How do I understand the "I walk one mile south/1 mile west/1mile north and end up in the same place" riddle?

rgqy92

false

explainlikeimfive

Mathematics

[removed]

ELI5: Why are polls so different from each other?

imuj74

false

explainlikeimfive

Mathematics

[removed]

ELI5: How could anything infinite exist within a finite universe. Like Pi for example.

imzxcb

false

explainlikeimfive

Mathematics

[removed]

ELI5: What is covariance and how does it describe the relationship between two variables?

evwt3l

false

explainlikeimfive

Mathematics

I'm having trouble understanding how covariance measures the relatedness between two variables. What is covariance and how does it relate two variables?

ELI5: How does a savitzky-golay filter work?

ew2cw3

false

explainlikeimfive

Mathematics

I know it can be used to smooth a data signal, but how exactly does it do that?

ELI5: Fibonacci Sequence: what is it?

lwu9fm

false

explainlikeimfive

Mathematics

I quite often hear people talking about Fibonacci and have always been curious on what it is, however all the explanations I’ve seen/heard have been too technical for me to understand. Thanks!

How is math racist? Eli5

lwwfgf

false

explainlikeimfive

Mathematics

[removed]

ELI5: What do they mean by "additional" % lower risk when talking about COVID vaccine effectiveness?

lwz7qy

false

explainlikeimfive

Mathematics

[removed]

ELI5: What gives Michio Kaku the idea that the "Theory of Everything" equation would be just an inch long?

sv7urc

false

explainlikeimfive

Mathematics

[removed]

ELI5: Before numbers were invented how did people count things?

c645mg

false

explainlikeimfive

Mathematics

null

ELI5: Why is the significance of prime numbers?

c6k6t7

false

explainlikeimfive

Mathematics

[removed]

Eli5 What is 6÷2(3+3)= ?

yalhvm

false

explainlikeimfive

Mathematics

[removed]

ELI5: if y=2x-1 how is that plotted on a linear graph?

icluyk

false

explainlikeimfive

Mathematics

[deleted]

Eli5 How does 2+2=5?

ico736

false

explainlikeimfive

Mathematics

[removed]

ELI5

ics7dk

false

explainlikeimfive

Mathematics

[removed]

eli5: What are the possible applications or breakthroughs that could arise from solving the Riemann Hypothesis?

sp28zj

false

explainlikeimfive

Mathematics

I'm very interested in the connection between advanced maths and physics etc but I have no background in mathematics so a lot of the explanations of the deep stuff are really difficult to parse. I can't get my head around the importance of prime numbers or why their discovery could unlock new advances in other disciplines.

ELI5 why Gödel’s Incompleteness Theorems is very important in mathematics and philosophy? I’ve been reading but I somehow can’t absorb the technical stuff

mdh19g

false

explainlikeimfive

Mathematics

null

Eli5: What does ... in matrix mean?

vjqo06

false

explainlikeimfive

Mathematics

[deleted]

ELI5: How did Eratosthenes knew exactly at what time to measure the two shadows 800km apart to calculate the curvature of the Earth?

cf1pk1

false

explainlikeimfive

Mathematics

I know the math of heights and distance, but given that there were no watches at the time he was alive, how did he know when it was the right time to measure the second shadow to compare with the first? At 800km, it's not like he called somebody or ran quickly...that's a multi day trip at best...

ELI5: What is the fibonacci sequence and why is there such a fascination with it?

cfe76r

false

explainlikeimfive

Mathematics

null

ELI5: Why can you multiply by zero but not divide?

p8db3k

false

explainlikeimfive

Mathematics

Go easy on me.

Eli5: Missing dollar

p94h7y

false

explainlikeimfive

Mathematics

[removed]

ELI5 Why does fourrier series (complex) include negative frequencies ?

ibpzcf

false

explainlikeimfive

Mathematics

We know negative frequencies dont actually exist, and I've heard it's "designed" solely to make the math work, but how so? and why do these negative frequencies not appear on other representations of fourrier series (such as trigonometric one) ?

ELI5: How is math applicable in game development? Can you list what's the most useful math subjects to learn for this goal? Does a game engine do all the "hard" math for you?

n7hnuj

false

explainlikeimfive

Mathematics

[removed]

ELI5: How does orbital dynamics work?

n7xpj4

false

explainlikeimfive

Mathematics

[removed]

Eli5 The commutative law of addition

xw9xyh

false

explainlikeimfive

Mathematics

For homework tf is this

ELI5: Why does it matter when others play the “wrong” move at a blackjack table

xwiuio

false

explainlikeimfive

Mathematics

The odds of the other person getting a card they want doesn’t necessarily change, so why does it effect anybody when a player doesn’t play by the chart

ELI5: How is it possible to calculate on encrypted data with homomorphic encryption?

f298rn

false

explainlikeimfive

Mathematics

Given the circuit `a + b = c`. How is it possible to calculate with encrypted parameters (a and b) an encrypted result (c) with homomorphic encryption? What is the fundamental idea to make this possible?

ELI5: Is it possible to keep raising your bet amount with a 48 : 52 chance and come out ontop.

f2jkc3

false

explainlikeimfive

Mathematics

[removed]

ELI5: P value, confidence interval, odds ratio and null hypothesis.

ht92j3

false

explainlikeimfive

Mathematics

Also a simply-explained way to calculate all this would be swell. I'll be playing around with these values in my research paper regarding risk factors of amputation among diabetic foot patients. I'm practically a math idiot who didn't expect math like this after entering medical school.  n.b. Obviously I'll be using MS Excel to crunch the numbers, given the large data set

ELI5 what is the purpose for each of the operators in calculus and what do they do?

jlvgwz

false

explainlikeimfive

Mathematics

[removed]

Eli5 about Standard Deviation

jlyh86

false

explainlikeimfive

Mathematics

[removed]

ELI5:how are the relative value of chess pieces derived?

oxesxz

false

explainlikeimfive

Mathematics

I know what they are, but online sources fail to explain how they were originally calculated. Why 1,3,3,5,9 and not something else like 1,2.5,3,6,10?

ELI5: why is pi 3.14…. What is so special about this exact number and how did we know this invite number is a circle?

oxp29p

false

explainlikeimfive

Mathematics

null

Eli5 how the 800m works

oxmqn1

false

explainlikeimfive

Mathematics

[removed]

eli5: If 1 degree celsius is 33.8 degrees fahrenheit, how come 67.6 degrees fahrenheit isn’t 2 degrees celsius?

i28gu1

false

explainlikeimfive

Mathematics

I’ve always wondered this and I don’t think I Learned about it in school, it’s so confusing to me

ELI5: How is sampling bias overcome when presenting COVID-19 population statistics.

i1k07a

false

explainlikeimfive

Mathematics

[removed]

ELI5: If the moon moves away from the earth little by little every year, how many years will it take for the moon to look as small as a star at night on earth

i26jw9

false

explainlikeimfive

Mathematics

[removed]

ELI5: Why Is Ten Where We Put the Zero?

ubknp2

false

explainlikeimfive

Mathematics

I don’t even know how to explain this one really. But in numbers why do we choose to make ten double digits? And subsequently why then is 100 and all other squares of ten where we add the extra zeros/digits? Is there something special about ten itself and its powers or was it just chosen randomly?

eli5: If 0 is a set containing nothing, how do negative numbers work, how do you take away from something holding nothing?

uc6c2v

false

explainlikeimfive

Mathematics

I don’t know anything about set theory so this might be completely misunderstanding what 0 is

ELI5: Why is the LCM not called the LCF (factor) instead ?

g2l0t0

false

explainlikeimfive

Mathematics

[deleted]

eli5: Why was Einstein so much better than everyone else? How did his maths change the world so much?

g2kr86

false

explainlikeimfive

Mathematics

[removed]

eli5: what are equivariant corks in advanced math/science?

pjo1v8

false

explainlikeimfive

Mathematics

Just ran into a video of someone talking about equivariant corks and other terms that sound like a foreign language. http://www.birs.ca/events/2017/5-day-workshops/17w5040/videos/watch/201708081333-Wong.html What is she talking about and how is this information used science or examples of real world use cases?

ELI5: In mathematics, when is a result or conjecture considered true without proof? What conditions are needed to be met?

pk355a

false

explainlikeimfive

Mathematics

null

ELI5:Can somebody explain Bayes’ Theorem?

fvi42n

false

explainlikeimfive

Mathematics

I’m kind of struggling to grasp it, in both it’s mathematic and philosophical sense/context

ELI5 : What is the logic behind sin , cos , and tangent exactly?

fvb2ww

false

explainlikeimfive

Mathematics

null

ELI5: What does our choice of musical scale have to do with the number of fingers we have?

fv5uw1

false

explainlikeimfive

Mathematics

[removed]

ELI5: If I flip a coin 10 times, what are my chances of flipping tails at least once?

hdwojx

false

explainlikeimfive

Mathematics

Are they the same chances of flipping heads at least once?  It doesn't make sense to me that the answer would be "the chances are 50%, because each toss has a 50% probability," but wouldn't any other answer imply that some sort of causality is going on (i.e., that flipping heads means the next flip has a higher chance of being tails, which is of course incorrect)?  (Note: I'm not asking what the chances of getting tails on the final toss are; that would of course still be 50%. I want to know the probability that I get tails, at least once, anywhere in these 10 coin flips).

ELI5: What is the actual use of the median and mode in statistics compared to the average (mean)?

pbhnr5

false

explainlikeimfive

Mathematics

null

ELI5: How do people make portraits with rubik cubes or dices?

pbkpzs

false

explainlikeimfive

Mathematics

[deleted]

Eli5: Was mathematics invented, or was it actually discovered?

pb5kir

false

explainlikeimfive

Mathematics

[removed]

ELI5: What is the Black Scholes model and how does it work?

hzihoe

false

explainlikeimfive

Mathematics

https://en.wikipedia.org/wiki/Black%E2%80%93Scholes_model  What is the Black Scholes model. How does it mitigate or eliminate risk in certain financial markets? What are its limitations? And why does it look like dark magic?

ELI5: Why polinomial of degree 5 and above can't have general root formula?

hzenas

false

explainlikeimfive

Mathematics

[removed]

ELI5 - Infinity?

btq1f7

false

explainlikeimfive

Mathematics

null

ELI5: Roman Surfaces, how are they one-sided?

lso38h

false

explainlikeimfive

Mathematics

I understand the moebius strip, it makes sense to me visually, as I can trace the singular line through it's loops. However, images of a roman surface don't give me any idea of the one-sidedness. Can someone please explain how the path flows or why it is not possible to visually represent the one-sidedness (should that be the case)?

Eli5 If I toss a coin 100 times, does the option of getting heads 100 times have the same probability as getting 50 heads 50 tails?

luj0kb

false

explainlikeimfive

Mathematics

My friend is trying to explain why not all possibilities have the same probability but it's not making any sense to me. I thought all possibilities have the same probability.

ELI5: The difference between Standard Error, Standard Deviation and Variance in statistics?

l4tzwb

false

explainlikeimfive

Mathematics

I've read so many explanations and it's still gibberish to me, if anyone is able to explain it to me in very simple terms I would be super thankful!

Eli5

g7deiy

false

explainlikeimfive

Mathematics

[removed]

eli5: playing rpg, rolled dice, d20, got a fucking 49, what are the odds of rolling 2 20s and a 9 successively

g7po3p

false

explainlikeimfive

Mathematics

[removed]

ELI5: What does arbitrary number mean?

dvumbn

false

explainlikeimfive

Mathematics

null

ELI5:How does loot table in games work

ev2qyj

false

explainlikeimfive

Mathematics

How does programmers do loot tables for millions of items that all have different chances to drop when you kill a enemy in big games like path of exile , Diablo, WoW.

What is Standard Deviation? How is it calculated? What's the significance of it?

euh6zc

false

explainlikeimfive

Mathematics

[removed]

ELI5: What is a Fourier Transform and why was it necessary to render the image of the total solar eclipse?

f4mvuh

false

explainlikeimfive

Mathematics

https://reddit.com/r/space/comments/f4l2jv/_/fhrgh2r/?context=1 An explanation of the whole comment would be great. I tried to look up Fourier transform on Wikipedia but it was a lot of math.

What does a high Kurtosis and slightly negative skewness of the X variable mean about my data?

f4nl3g

false

explainlikeimfive

Mathematics

[removed]

ELI5: What is the butterfly effect?

f4upu4

false

explainlikeimfive

Mathematics

[removed]

What does it mean to have a zero or decimal power ?

f594mb

false

explainlikeimfive

Mathematics

[removed]

ELI5: Probability of catching the coronavirus while using a mask and being vaccinated

oncw3k

false

explainlikeimfive

Mathematics

[removed]

eli5 what is abelian group?

ondtf9

false

explainlikeimfive

Mathematics

[removed]

ELI5 subtracting negative numbers from positive numbers

h858lp

false

explainlikeimfive

Mathematics

I feel incredibly stupid posting this considering I'm 24 years old and probably learnt negative subtraction in year 4, but I've been needing to brush up on my maths skills to further a hobby of mine and realised today that the whole concept of subtracting negative numbers from positive numbers being the same as adding a positive number just makes no logical sense to me, and I think I'll go crazy if I can't resolve it. For example, 4 - (-6) = 4 + 6 In my mind the concept of subtracting a negative number from a larger negative number makes logical sense. For example, with (-4) - (-2) = -2. I can see that if I had negative 4, or 4 negatives, and I removed (subtracted) two of those negatives, ie I removed (-2), then I would be left with only 2 of those negatives = -2. So ofcourse I can see that in that way (-4) - (-2) is the same as (-4) + 2, as they both give the same result. However, as soon as this all moves past 0 into the positive realm, the whole sense of it falls apart for me. How can 4 - (-6) = 4 + 6? If I have four of something, four positive integers, how can I remove 6 negative integers? Or any negative integers? I don't have any negative integers, I have four positive numbers. How can I possibly take negatives away from a positive number - I don't have any negatives. Then to suddenly say that removing 6 negatives from positive 4 gives me positive 10?? That just seems like madness to me. And sure I get that in a theoretical sense, for theoretical consistency of the functions of the concepts of adding and subtracting, if (-4) - (-2) = (-4) + 2 then 4 - (-2) must also equal 4 + 2. But in an actual physical logical sense, outside of imagined concepts, for the life of me I can't see how it makes any sense at all. Any assistance would be a huge help! If I can't even grasp the basics of the basics then I'm surely screwed.

ELI5: How does the birthday paradox work?

i9bir2

false

explainlikeimfive

Mathematics

The birthday paradox “vaguely” states that the odds of having the same birthday in a room of 20 people is about 50%. I tried finding the answer alone but no explanation I read helped. Edit: Thank you everyone for your great expectations. I think I get the gist of it now.

ELI5 What does it mean to take a derivative with respect to a variable? How is this different from simply taking the derivative?

i9ru3w

false

explainlikeimfive

Mathematics

Taking calculus right now and I can’t figure out the difference between the “regular” derivative and differentiation with respect to a variable. I really need to know what the latter means as I’m struggling to understand other concepts because of it.

ELI5: Why are limits so important in math?

i9drw8

false

explainlikeimfive

Mathematics

null

Base64 eli5

oglnu7

false

explainlikeimfive

Mathematics

[removed]

ELI5: Quadratic Functions

n1d94p

false

explainlikeimfive

Mathematics

[deleted]

ELI5: true bearings vs compass bearings?

y7zsdz

false

explainlikeimfive

Mathematics

[deleted]

eli5: what is probabilistic theory and why is it so controversial?

ek6bc3

false

explainlikeimfive

Mathematics

null

ELI5: What do natural logs represent?

ftj2mn

false

explainlikeimfive

Mathematics

I'm aware that e is a number and I know how to do math with logs, but I've never understood what their graphs are used for. For example, exponential graphs are used for pratical reasons in a lot of careers to show growth and decay along with interest. I'm wondering if the graph of ln or logs in general has a similar purpose.

ELI5: How is the number of Covid-19 cases calculated if those displaying mild symptoms are advised to stay home and not report?

ftir5z

false

explainlikeimfive

Mathematics

[removed]

ELI5: What is a minimal surface (maths)?

ell55y

false

explainlikeimfive

Mathematics

null

Do extremely long structures built on earth match the curvature of the earth's surface?

ekubzs

false

explainlikeimfive

Mathematics

[removed]

How does one calculate the length of a year?

ekvyhx

false

explainlikeimfive

Mathematics

[removed]

ELI5 what are limits and derivatives?

mkcrhz

false

explainlikeimfive

Mathematics

I can't figure them out. Pls help

ELI5: How did we find algorithms for solving a Rubik's Cube?

fatsry

false

explainlikeimfive

Mathematics

Some steps like the first layer can be solved intuitively, but how did we come up with algorithms for solving different cases? Like did someone fiddle around with trial and error, or was there a mathematical concept for it? And can we find new or more efficient algorithms?

-5 x -5 = 25 but -5 squared = -25

faucfm

false

explainlikeimfive

Mathematics

[removed]

ELI5: Why do humans prefer rectangle interfaces rather than circles or triangles? [US The Office spoilers]

fb3w83

false

explainlikeimfive

Mathematics

[removed]

Can someone eli5 please? The answer just says "Didn't you see it? Then just read the question again slowly, out loud".

hmortg

false

explainlikeimfive

Mathematics

[removed]

ELI5: Simply put, how does the kernel density estimation work and how can we use it on real-life maps?

hmovp5

false

explainlikeimfive

Mathematics

[removed]

ELI5: Why aren't derivatives treated as fractions?

msqobo

false

explainlikeimfive

Mathematics

[deleted]

ELI5: Using a pair how do I decrypt a message given letters were represented by ASCII values For example pair 134 and 10 and need to decode message 111 4 88 57 116 67

mssf27

false

explainlikeimfive

Mathematics

[removed]

ELI5: Why does encryption require prime numbers? A why is it so hard to find massive prime numbers?

frhpk9

false

explainlikeimfive

Mathematics

null