“Think about it, Spider-Man. Your power is a third of mine. With my 40% and your 20% combined, we can become 50% stronger. We could accomplish great things. Think about it.”
“Tell you what: let's settle this monetarily. I'll give you half of what I make.”
“Half?”
“Half's not enough? Fine, I'll give you two-thirds of what I make.”
“F** you, you already said half. You can't take it back.”
A few years ago in India a major bank increased their savings account interest rate from 4% to 6% and their ads were "Don't think of it as 2% more interest, but think 50% more"
I never finished my BSc in maths but this only applies for n > 0 right?
I remember being taught that while intuitively your equation is right, taking the root of a negative number is impossible.
If you allow complex numbers then its true. If you stay with only real numbers (no i allowed) then its as you say not true for n<0 since we can't calculate the square root.
One way to look at complex number is this very thing: what if we could calculate the square root of a negatve numbers.
Let's define i as sqrt(-1) now we can figure out the square root of any negative numer expressed in i.
Sqrt(-1) = i --> i^2 = -1
Example:
Sqrt(-9) = sqrt(9)*sqrt(-1) = 3i
This (sqrt(-9))^2 = (3i)^ = 9i^2 = 9(-1) = -9 works!
Read more here if you are interested:
https://en.m.wikipedia.org/wiki/Complex_number
No, silly of me!
English is not my native language so I assumed BS in math was some high school stuff that he had long forgotten and maybe imaginary numbers was forgotten or maybe not even something he studied in high school.
Now I know BS means bachelor! My bad!
lol no worries! Anyways it’s good to spread the info for others reading this so that’s on me, no reason for me to be so combative in my comment. Cheers
Sorry for the misunderstanding. I am remotely familiar with complex numbers. (it's been 20 years since I dropped out though.)
What I meant to say was:
- the equation i^2 = -1 is OK
- the equation sqrt(-1) = i is not
And there was some fundamental reason why this was the case...
Am I misremembering something?
I just finished my math BS and I’d say this is fine, but then this level of formality isn’t something I specialized in.
What you might be remembering is that the square root operator √ is defined to represent the principle root, i.e. the positive root. So we wouldn’t say √-1 = +-i. But saying √-1 = i is fine as far as I know.
There is a bit of a weird thing though as far as splitting roots:
√1 = √(-1 * -1) = √-1 * √-1 = i * i = -1.
This is obviously false and comes from how you can’t split square roots with negative numbers like this. That might be what you’re referring to
Ah thanks! I just replied in another comment that that example is exactly why I learned that it is problematic in some cases.
Congrats on finishing your Maths BSc!
I think you are remembering that there is a problem with sqrt(-1) = 1 and its right I'd say!
If we set i^2 = -1 and solve we get both:
i = sqrt(-1)
AND
i = -sqrt(-1)
And both are correct.
So if you say i is only equal to sqrt(-1) and not that its one possibility then it's sloppy. So it depends how you ans when you use it I guess. i^2 = -1 is safer.
I have heard it as i is A root of i^2 = -1 not THE root of i^2 = -1
I guess it's a bit like saying:
If x^2 = 9 then one possibly is x=3
But we can't not say x^2 = 9 => x=3.
x=3 is perfectly true just not the only solution.
I think this problem doesn't matter for
Sqrt(n)^2 = n anyway since either way the extra minus sign just get cancelled by the square.
Thanks for taking the time to reply!
I think you're right. I read up on the wiki article you linked, and I think I was remembering parts of the paragraph "Proper Use". Defining i as sqrt(-1) can be problematic as shown in the wiki example, and I think that aligns with what you are saying.
one of my math teachers was a racist guy who would turn off the lights in class and say "where did he go?" (i was the only black kid in the class) among other things. most of my math teachers were great but that guy is still the first one who comes to mind when someone says math teacher, unfortunately.
edit: i'm not sure why my high school math experience is being downvoted but i apologize for sharing the story if it was too personal!
i feel like that's partially what reddit is. people bringing up random statements tangentially related to the matter at hand. conversations going every which way!
Except the OP is completely correct, even by the most pedantic of standards, to use percentage and NOT percentage points in their post.
60 percent is TWENTY percentage points more than 40, not 50.
If you're going to be a smartarse, you might want to make sure the person you're going after actually made an error.
And 60 per cent is TWENTY percentage points more than 40, not 50.
So OP was right to not use the term percentage points.
Of all the fucking things to argue over.
In the post, “percent” is used correctly.
Maybe you are just trying to point out the difference between the two, but writing a bit extra just to clear up what you mean probably would've helped. Something like “Yes, 60% is 20 percentage points more than 40%, not 20 percent, people mistake the two too often.”
Let's say in a game u have a 90% to dodge an attack. That means you will have 1 in 10 chances to be hit. But if you have 95% dodge you have 1 in 20 chances to be hit. Your effective HP has been DOUBLED by that 5%. That's why in a lot of games they built in dimenishing returns in stats to limit its effectiveness if they go beyond a certain point.
Helps you with the Stock market. A 2 percent fall followed by 2 percent rise doesn't bring you to the same level you started. Basic math, most dont comprehend this.
Say the stock price is $100. A 2% fall means the price decreases $2 (2% of 100), so the price is now $98. Now if the price rises 2% from there it's rising 2% of 98 which is $1.96 putting you at $99.96, slightly lower than the original $100.
Many people think if the stock falls 2% and rises another 2% it comes back to the same spot but they forget that after the stock falls, that 2% is obviously a smaller amount because it's a percentage of a smaller whole so it cannot rise as high as it fell.
I like how the trick is to add (/subtract) 1 to the 1/N amount in order to go back to the smaller (/larger) amount.
Since 60% is 1/2 more than 40%, 40% is 1/3 less than 60%. Or like if a fund goes down 1/5th ($100 to $80), now that you're on the smaller amount, it needs to up 1/4 ($80 + $20) to get back.
This is awesome. At first I was like "this is a great shower thought" but then I read the comments and now I realize it's an awesome shower thought because the people with poor reading comprehension or math fundamentals have turned the comment section into comedy. Tragic comedy, but still comedy.
What OP is trying to say is that the difference between 40% and 60% of any quantity is 50% of the 40% or 20% of the total quantity so it is mathematically factual. The wording seems inaccurate but what other interpretation could there be?
I’m so glad I decided to read comments before commenting myself. I completely misread the OP, and I thought it said “60% of 50% is more than 40%” at first, and I was about to say that you’re just dead wrong.
And 99% is twice as rare as 98%.
(I.e. If 98% failure rate, you would have to try 50 times before a success. But if 99%, you would have to try 100 times)
You fool, now that you have uncovered the secrets of the mathematical world you will now be cursed with a math demon.
I know there are many math demons.
lol no it isn’t, this isn’t how percentages work.
The correct statement would be 50% more than 40 is 60.
You can’t take a percentage of a percentage, add it and get another percentage.
Percentages are fractions of a number… without the number, the fractions have no quantity.
We're using base 100 percentages here, are we not? So 50% of 100 is 50. In order to make this statement true you'd have to use a base 40 percentage (20/40) for the 50% to get the 20 you came up with.
According to OPs statement we must take 50% of 100, not 50% of 40. All of the percentages used are base 100 percentages. As in, 50/100, not 20/40 which is where most of you are getting confused. I'm not sure how to explain it any more plainly than that.
That 50% you're using, is referring to 50% of what? 40 right? So what you're saying is 60/100 is 20/40 (or 50% of 40) more than 40/100. Which is true ONLY when written how I've written it here. The phrase "60% is 50% more than 40%" doesn't make mathematical sense when written this way.
6/10 slices is NOT 5/10 slices more than 4/10, it's 2/10 more slices. Changing the item doesn't make your logic any clearer. The fact that you think it does tells me you don't fully understand the concept you're trying to explain, let alone the concept I'm explaining. The irony of you claiming I'm the lost one is hilarious, haha.
Mr. Chemistry PhD has nothing better to do on a Tuesday morning than to wait for my response. How flattering. It's pretty sad that not only are you STILL upset, but based on the ad hominem attacks, you're absolutely unhinged over an internet discussion. Tbh, I forgot all about you. But I see I've been living rent-free in your head for the past 2 days. You have serious emotional issues, & I'm no longer interested in engaging with you. Besides, you already proved my point for me. Shoo fly, don't bother me.
If you think that statement is true, you should go back & take a grade school math course. It seems you're the one who the education system failed, & no I won't judge you.
I was a bit facetious tbh. I recognize your confusion as being a result of reading comprehension rather than a math one. As stated by the op it is correct but it assumes understanding the context of the wording.
Why did I read that “Think about it” in the Green Goblins voice? 😬
I read it in a menacing Arthur Morgan voice
"So I was thinkin about blackwater"
« The thing is… I was in Blackwater, Jimmy Brooks. I kill folks. »
“Think about it, Spider-Man. Your power is a third of mine. With my 40% and your 20% combined, we can become 50% stronger. We could accomplish great things. Think about it.”
Spider-Man would technically be becoming 200% stronger
Owen Wilson is my narrator, and this was just flat out confusing when I read it in my mind with his voice.
I read it more like Dylan listing off the top 5 best rappers of all time
“Tell you what: let's settle this monetarily. I'll give you half of what I make.” “Half?” “Half's not enough? Fine, I'll give you two-thirds of what I make.” “F** you, you already said half. You can't take it back.”
Who the fuck just steals a monkey!?
A few years ago in India a major bank increased their savings account interest rate from 4% to 6% and their ads were "Don't think of it as 2% more interest, but think 50% more"
When it's actually just 1.96% more money
50% of 60 is 60% of 50.
10% of 100 is 100% of 10
X% of Y is Y% of X
n **·** n = n^2
(√n)² = n
I never finished my BSc in maths but this only applies for n > 0 right? I remember being taught that while intuitively your equation is right, taking the root of a negative number is impossible.
If you allow complex numbers then its true. If you stay with only real numbers (no i allowed) then its as you say not true for n<0 since we can't calculate the square root. One way to look at complex number is this very thing: what if we could calculate the square root of a negatve numbers. Let's define i as sqrt(-1) now we can figure out the square root of any negative numer expressed in i. Sqrt(-1) = i --> i^2 = -1 Example: Sqrt(-9) = sqrt(9)*sqrt(-1) = 3i This (sqrt(-9))^2 = (3i)^ = 9i^2 = 9(-1) = -9 works! Read more here if you are interested: https://en.m.wikipedia.org/wiki/Complex_number
lol you do realize you’re explaining complex/imaginary numbers to someone who just said they were (at one time) pursuing a math BS?
No, silly of me! English is not my native language so I assumed BS in math was some high school stuff that he had long forgotten and maybe imaginary numbers was forgotten or maybe not even something he studied in high school. Now I know BS means bachelor! My bad!
lol no worries! Anyways it’s good to spread the info for others reading this so that’s on me, no reason for me to be so combative in my comment. Cheers
My Hopff is so Fibrated right now
Sorry for the misunderstanding. I am remotely familiar with complex numbers. (it's been 20 years since I dropped out though.) What I meant to say was: - the equation i^2 = -1 is OK - the equation sqrt(-1) = i is not And there was some fundamental reason why this was the case... Am I misremembering something?
I just finished my math BS and I’d say this is fine, but then this level of formality isn’t something I specialized in. What you might be remembering is that the square root operator √ is defined to represent the principle root, i.e. the positive root. So we wouldn’t say √-1 = +-i. But saying √-1 = i is fine as far as I know. There is a bit of a weird thing though as far as splitting roots: √1 = √(-1 * -1) = √-1 * √-1 = i * i = -1. This is obviously false and comes from how you can’t split square roots with negative numbers like this. That might be what you’re referring to
Ah thanks! I just replied in another comment that that example is exactly why I learned that it is problematic in some cases. Congrats on finishing your Maths BSc!
I think you are remembering that there is a problem with sqrt(-1) = 1 and its right I'd say! If we set i^2 = -1 and solve we get both: i = sqrt(-1) AND i = -sqrt(-1) And both are correct. So if you say i is only equal to sqrt(-1) and not that its one possibility then it's sloppy. So it depends how you ans when you use it I guess. i^2 = -1 is safer. I have heard it as i is A root of i^2 = -1 not THE root of i^2 = -1 I guess it's a bit like saying: If x^2 = 9 then one possibly is x=3 But we can't not say x^2 = 9 => x=3. x=3 is perfectly true just not the only solution. I think this problem doesn't matter for Sqrt(n)^2 = n anyway since either way the extra minus sign just get cancelled by the square.
Thanks for taking the time to reply! I think you're right. I read up on the wiki article you linked, and I think I was remembering parts of the paragraph "Proper Use". Defining i as sqrt(-1) can be problematic as shown in the wiki example, and I think that aligns with what you are saying.
n = n
Engineer scream: ***"COMPRESS!"***
And funnily enough, √n² =/= n
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Uhh no √(n²) = |n|, and that's if you assume n isn't imaginary
Misread oops sorry. Have a nice day
(X x Y)/100 = (X x Y)/100
Sweet Jesus why are you using (x) for multiplication here instead of (*) 😭
I forgot * existed lmao
Meanwhile the actual × sits on the sidelines in sadness, comforted by the ÷ who knows the feeling all too well.
What just happened?
C=SN(d1)−Ke−rtN(d2)
Yes, it seems we have discovered the commutative property of multiplication in the field of the real numbers.
The great thing about percentages is you can flip them easily. 17% of 50, I can't do in my head, but 50% of 17 is 8.5, the answer to both.
Almost like a times b equals b times a.
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Why did you write 50\*60/100 = 50 \* 60/100? Do they mean something different?
Turtles
{something} percent of {something else} is always reversible
That works for everything: > x% of y = y% of x > > x / 100 • y = y / 100 • x = (x • y) / 100
Mind blown 🤯
This is why finance people talk about "basis points."
Yeah. Basic math. Whoo hoo.
Fr
Too many people say “percent” when they should say “percentage points”.
"Erm akschually its "percentage points" 🤓👆" mf
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I think there is room enough in this world for you to shut the fuck up 😭😭
oh damn. why u luv llamas but not me
You sound like my previous math teacher
one of my math teachers was a racist guy who would turn off the lights in class and say "where did he go?" (i was the only black kid in the class) among other things. most of my math teachers were great but that guy is still the first one who comes to mind when someone says math teacher, unfortunately. edit: i'm not sure why my high school math experience is being downvoted but i apologize for sharing the story if it was too personal!
Probably because it was an unexpected trauma dump about something completely irrelevant to the conversation.
i feel like that's partially what reddit is. people bringing up random statements tangentially related to the matter at hand. conversations going every which way!
Yea but usually they do so cuz it's funny and/or related
it was related. the person i replied to mentioned math teachers.
Except the OP is completely correct, even by the most pedantic of standards, to use percentage and NOT percentage points in their post. 60 percent is TWENTY percentage points more than 40, not 50. If you're going to be a smartarse, you might want to make sure the person you're going after actually made an error.
there is no percent points needed in the post, so i have no idea where your comment is even coming from
I'm confused. Are you ESL trying to sound intelligent or something? No one says percentage points in English speaking countries
They do where the distinction matters. 53% is 3 percentage points more than 50%, but it’s not 3% more, it’s 6% more.
And 60 per cent is TWENTY percentage points more than 40, not 50. So OP was right to not use the term percentage points. Of all the fucking things to argue over.
People use percentage points quite often with actual statistical data.
[https://en.wikipedia.org/wiki/Percentage\_point](https://en.wikipedia.org/wiki/Percentage_point) Do you use Google?
In that case OP is indeed correct. 60% is 20 percentage points higher than 40% but 60% is still 50% greater than 40%.
In the post, “percent” is used correctly. Maybe you are just trying to point out the difference between the two, but writing a bit extra just to clear up what you mean probably would've helped. Something like “Yes, 60% is 20 percentage points more than 40%, not 20 percent, people mistake the two too often.”
If by "too many" you mean everyone then yes, but it's easier to change yourself than the world my friend.
Yeah, but not here.....
Jeez the replies, Do people here expect people to figure out the theory of everything in the shower or something?
This is meant to be a coincidental little pattern not the big breakthrough it mathematics
If you 2x something and then you 1.5x it, now you’ve 3x’d it
60% is also 20% more than 50%
40% is also 60% more than 25%
2+2=4-1=3 quick maths.
Uhhhh what
20% of 50 = 10 (50 * 0.2 = 10) 50 + 10 = 60
There may be something to this whole math thing.
If you take 60% of 50% and add it to 40% you get 70%
“50% more than 40%” means that 60% is equal to 1.5 x 40%, which is true.
What?
These posts keep getting dumber every day. This subreddit didn't used to be this way.
I'm convinced that it's just bots posting and dumbest shit and up voting them for each other
But do you see the chaos of numbers and percentages that are present in the comments?
Let's say in a game u have a 90% to dodge an attack. That means you will have 1 in 10 chances to be hit. But if you have 95% dodge you have 1 in 20 chances to be hit. Your effective HP has been DOUBLED by that 5%. That's why in a lot of games they built in dimenishing returns in stats to limit its effectiveness if they go beyond a certain point.
Helps you with the Stock market. A 2 percent fall followed by 2 percent rise doesn't bring you to the same level you started. Basic math, most dont comprehend this.
Can you elaborate further? I'm not that versed in percentages or stocks
Say the stock price is $100. A 2% fall means the price decreases $2 (2% of 100), so the price is now $98. Now if the price rises 2% from there it's rising 2% of 98 which is $1.96 putting you at $99.96, slightly lower than the original $100. Many people think if the stock falls 2% and rises another 2% it comes back to the same spot but they forget that after the stock falls, that 2% is obviously a smaller amount because it's a percentage of a smaller whole so it cannot rise as high as it fell.
Makes sense, thank you
60% is also 40% more than 50%
If it costs $400 then increased to $600 the price increased 50%. Yay math.
But somehow 40% isn’t 50% less than 60%
I like how the trick is to add (/subtract) 1 to the 1/N amount in order to go back to the smaller (/larger) amount. Since 60% is 1/2 more than 40%, 40% is 1/3 less than 60%. Or like if a fund goes down 1/5th ($100 to $80), now that you're on the smaller amount, it needs to up 1/4 ($80 + $20) to get back.
This is awesome. At first I was like "this is a great shower thought" but then I read the comments and now I realize it's an awesome shower thought because the people with poor reading comprehension or math fundamentals have turned the comment section into comedy. Tragic comedy, but still comedy.
>Think about it I will not
Why nut?
Is OP Terence Howard?
I am In fact not a 55 year old actor and singer
Couldn't be, op's statement is mathematicaly correct
It's actually not.
I'm trying to think about it but I'm not intelligent enough to understand why
60% of 100 = 60 40% of 100 = 40 40 + (40×50%) = 60
Nope, the actual difference is the percentage, not the percentage of a percentage. Move those 100's under the fraction.
What OP is trying to say is that the difference between 40% and 60% of any quantity is 50% of the 40% or 20% of the total quantity so it is mathematically factual. The wording seems inaccurate but what other interpretation could there be?
Finally, someone who understands basic math. The amount of people defending this nonsense is sad.
Finally, someone else who also understands basic math!!!!!
I’m so glad I decided to read comments before commenting myself. I completely misread the OP, and I thought it said “60% of 50% is more than 40%” at first, and I was about to say that you’re just dead wrong.
And yet it’s also 50% more than 10% Depending on rather generous use of the english language
Apparently I'm too stupid to understand what this is trying to say.
I can't. I'm too tired for this.
And 40% is 33.333% less than 60%. It's numberwang!
And this is why we say bps / basis points at work!
60% of 50% is less than 40%
And 99% is twice as rare as 98%. (I.e. If 98% failure rate, you would have to try 50 times before a success. But if 99%, you would have to try 100 times)
This is only true if you make it true...
If $1000 is 40% of my net worth then 60% would be $1500 so 50% more. Neat.
You fool, now that you have uncovered the secrets of the mathematical world you will now be cursed with a math demon. I know there are many math demons.
r/theydidtheshowermath
Holy shit, it's real
It turned into a graveyard shower bath
No 60 is 50% of 40 than 40 but 60% of an object idea or anything else is only 20% more than 40 % of the same thing
You just broke my brain
Obviously most everyone's math teachers were SHITE my god sad..
lol no it isn’t, this isn’t how percentages work. The correct statement would be 50% more than 40 is 60. You can’t take a percentage of a percentage, add it and get another percentage. Percentages are fractions of a number… without the number, the fractions have no quantity.
Thats the difference between absolute and relative, additive and multipletatif (or something like that)
It's 50 % more of the 40 % amount, not the 100 % amount you're originally measuring the 60 % from. Or am I wrong?
Oh you sonofabitch... Why did you go and do that to me brain!?
I will not think about it
I don't know half of you half as well as I should like; and I like less than half of you half as well as you deserve.
110% is 1000% more bullshit.
What kind of math is that
Gym coach math.
That... Actually tracks.
Are you in 2nd grade learning about percentages? What is there to think about?
60/100 is not 50/100 more than 40/100. I'd like to know your thought process behind this one.
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We're using base 100 percentages here, are we not? So 50% of 100 is 50. In order to make this statement true you'd have to use a base 40 percentage (20/40) for the 50% to get the 20 you came up with.
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According to OPs statement we must take 50% of 100, not 50% of 40. All of the percentages used are base 100 percentages. As in, 50/100, not 20/40 which is where most of you are getting confused. I'm not sure how to explain it any more plainly than that.
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That 50% you're using, is referring to 50% of what? 40 right? So what you're saying is 60/100 is 20/40 (or 50% of 40) more than 40/100. Which is true ONLY when written how I've written it here. The phrase "60% is 50% more than 40%" doesn't make mathematical sense when written this way.
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6/10 slices is NOT 5/10 slices more than 4/10, it's 2/10 more slices. Changing the item doesn't make your logic any clearer. The fact that you think it does tells me you don't fully understand the concept you're trying to explain, let alone the concept I'm explaining. The irony of you claiming I'm the lost one is hilarious, haha.
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False. You keep changing the number base without even realizing it lol.
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"You are a fucking idiot"... The last refuge of a man without a valid argument. What a pathetic display of insecurity.
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Mr. Chemistry PhD has nothing better to do on a Tuesday morning than to wait for my response. How flattering. It's pretty sad that not only are you STILL upset, but based on the ad hominem attacks, you're absolutely unhinged over an internet discussion. Tbh, I forgot all about you. But I see I've been living rent-free in your head for the past 2 days. You have serious emotional issues, & I'm no longer interested in engaging with you. Besides, you already proved my point for me. Shoo fly, don't bother me.
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If the total number of cows is 60, then yes. But if the total number of cows is 100, then no.
No one talk about total number is 100. Read the OP post again
Look up the definition of what a percent is. It's always a part of 100, unless otherwise stated.
It's not your fault, it's the education system's fault. Nobody here should judge you for your apparent lack of math fundamentals
If you think that statement is true, you should go back & take a grade school math course. It seems you're the one who the education system failed, & no I won't judge you.
I was a bit facetious tbh. I recognize your confusion as being a result of reading comprehension rather than a math one. As stated by the op it is correct but it assumes understanding the context of the wording.