/sci/ - Science & Math

(87+3)*9 + 4 = 724

(87+3)*8 + 4 = 724

>>4704480

0/10

>>4704485
a typo. i corrected

>>4704483
WINRAR

And today's countdown conundrum is:

PAINCABLE

>>4704492
>>>/b/
>>>/reddit/
>>>/r9k/

>>4704483
>(87+3)*8 + 4 = 724

Where is the subtraction?
(87+3)*8 + 5 - 1 = 724

>>4704492
>he doesn't know what a limit is

>>4704509
fuck off, yeh i do

>>4704502
incapable

>dat feel when nobody knows how to play countdown

>>4704511
you dont have to use all the numbers

>>4704483
And the second 8?

>>4704513
No, you don't.

>>4704508
if we're playing countdown rules (pic related) we don't have to use all operations and all numbers

>>4704518
>>4704517
Don't know the show, sorry

>>4704513
>he doesnt know there are an infinite many points

i found a way that uses all numbers and all functions.

8(12/3)(87*8) - 4 = 724

>>4704529
i found a way that uses all numbers and all functions.

8(12/3)+(87*8) - 4 = 724

i found a way that uses all numbers and all functions.

8(12/3)+(87*8) - 4 = 724

>>4704529
You still don't know what a limit is.

87*8 = 696
8*3 = 24
696+24=720
720+4 = 724
Not that bad really. Took me longer than 30 seconds admittedly .

How about using 100, 75, 50, 25, 3, 6 to get to 952?

>>4704538
yeh i do.

>>4704544
Post the definition.

>>4704531
did you use an online solver?

>>4704541
no
like wolfram? i dont know how to use it for stuff like this.

>>4704546
http://thefreedictionary.com/limit

>>4704547
google countdown solver

oh wait, you already did

>>4704549
How is by that definition the limit of the sequence of curves not a circle?

>>4704551
no i didnt.

>>4704555
Yes, you did.

>>4704552
wtf?
shut the fuck up, nerd. this is a different thread

>>4704559
Answer the question. Oh wait, you can't because you don't know what a limit is.

>>4704557
no i fucking didnt
i kick ass at countdown, and the numbers game is my specialty.

>>4704559
Oh joy.

>>4704562
Keep denying it. You won't fool anyone.

>>4704560
i just fucking posted the definition, cunt
i have the fucking internet, even if i didnt know what a limit was, i can fucking find out in 5 seconds cant i?

>>4704565
implying you're reporting me?
i dont give a fuck, retard. i didnt break any rules and this aint even my thread.

>>4704568
You copypaste stuff that you don't understand. You don't even know which definition of limit applies here.

>>4704568
ok, whats the limit of sin(x)/x as x->0

>>4704570
only one of those definitions was mathematical, tard

>>4704568


you can read wikiedia all you want .but you cannot comprehend. go fuck a panda or psichoanalize your dykes

>>4704572
>implying he's not gonna ask wolfram

>>4704572
erm, infinity?

>>4704579
Oh you are right, lets also ask him to prove it

>>4704580
nope

>>4704580
>INFINITY
EK CONFIRMED FOR FULL TIME 3RD GRADER

We evaluate EK ITT

>>4704579
just did, wolfram says its 1.

meh, ages since ive done limits.

>>4704589
ok, prove that its 1
cumon step it up

>>4704580

>>4704574
How does this definition apply here?

>>4704589
>meh, ages since ive done limits.
>implying anyone who has ever done limits forgets sin(x)/x x->0

>>4704589
Prove it.

>>4704589

>Zoology
>Math

>>4704598
lol what?
did he really say that?

>>4704591
i cant remember how!!

alright fucker, if i fucking go on khan tommorow and revise fucking limits, will you all STFU?
i dont even DO math, jeez, who cares if i dont know limits?
what the fuck do limits have to do with zoology anyway??
im sorry i dont know FUCKING EVERYTHING
is that a crime??

>>4704605
There's nothing to revise. All you need to do is use the definition. But you can't, because you don't understand it.

>>4704605
yeah it is because I'm sure you've belittled many people for not knowing esoteric things many a time. L2 take what you dish out

>limits = fucking everything

>>4704605
>limits
>hard
>zoology
lol

>>4704605
No not a crime. But don't say that you know limits if you don't.

>Don't even know what's going on, just randomly replying

>>4704605
So you don't know limits? Yet you presume to talk about them and "correct" mathfags who actually got it right?

>>4704605
lol, EK
whats tan(x)/x as x->pi

>>4704605


EK knows her shit

>>4704611
yeh, its like you plug in all the values of x from something to something, and add em up.
and the chunks get smaller and smaller, or something. sort of like that tortoise puzzle with achilles, or something.

>>4704617
i wasnt correcting anyone

>>4704619
i still have wolfram, genius

=1

>>4704622
oh sorry, i meant pi/2

>>4704612
no! if its a hard thing, or its specific or whatever then i dont mind if people dont know it, its just if its obvious easy math, because its gonna mean their underage b& rite?

>>4704625
'2 sided limit does not exist'

>>4704622
You were posting in that other thread and repeatedly "correcting" others who told you that the sequence of curves does converge to a circle.

>>4704627
>he doesnt take it from 0->pi/2
lol pleb

>>4704628
that aint what i said. and it wasnt curves anyway, thats the thing with the troll picture with the straight lines, and the perimeter is always 4.

>>4704630
wat?
how do i tell wolfram that?

>>4704632
>circles
>not curves

>>4704627
lol EK, whats a derivative
lol

>>4704633
the opposite of an integral

and wtf is this anyway? test EK day? i dont need you guys to fucking test me on math, i dont even need to do math do i?

>>4704635
>EK is too stupid to just look at the fucking graph wolfram gave him
pffffffffft

>>4704632
So you don't know what a curve is either?

>>4704642
ok so whats an integral
and we are testing you cause anyone on /sci/ who goes around correcting people about this sort of shit should atleast know this shit

>>4704642
You decided to post in a math thread and you kept spouting something wrong despite corrections from actual mathfags.

>>4704644
course i do, but the troll pic is always with straight lines. you just cut the corner off so you get:

___
|

|
_________
|
|

like that

>>4704649
Do you know the mathematical definition of curve?

>>4704645
that thing where you put the power up by one, and divide by the new power
and differentiating is the opposite of that.

>>4704649
ok that didnt come out right, but u know what i mean.

>>4704649
___
|

|
_________
|
|
what the fuck is this shit?

>>4704658
i know im right, thats what i always did, and i passed the exam.

troll harder

>>4704651
its like the opposite of straight
so like x = y on a graph is a straight line
y = x^2 is a curve

>>4704653
>that thing where you put the power up by one, and divide by the new power
HAHAHAHAHHAHAHAHHAHAHAHAHAHAHAHAHAHAHAHHAHAHAHAHAHAHAHAHHAHAHAHAHAHAHAHHAHAHAH
WHAT A FAGGOT
LEAVE /sci/
LEAVE YOU DIRTY NON-MATH PLEB
BWAHAHHA

>>4704657
But a straight line is a curve, even I know that one.


But anyway faggots, solve this or prove it impossible, I'm having a hard time doing either:
>>4704542

>>4704663
>he cant even define integral right
oh my god EK, you cant even use google/wikipedia correctly

>>4704657
Okay, so you don't know what a curve is.

EK learning math. SCI is proud.

>>4704657
>he doesnt know what a curve is

>>4704672
But that isn't the definition, you fucking retard. Please stop posting stuff you don't understand.

>>4704667
why cheat when i know what it is?
i can wikilink you to a definition of integral, but its easier to just say 'up the power by 1, divide by the new power'

>>4704674
if it aint the opposite of straight, what is it then, in your own words?

>>4704672
>posts the power rule
>thinks thats the definition of integral
i bet you think the integral of sin(x) dx is sin^2(x)/2 or some dumb shit

>>4704677
it's your sexuality

>>4704677
A curve is a continuous map <span class="math">\gamma : [0,1] \mapsto X[/spoiler] with <span class="math">X[/spoiler] being a topological space.

EK will leave his trips soon.

>>4704680
HUUURRRR! funny guy!
my sexuality is 'curved' is it?? you fucking moron, that aint even a thing, and i'm bi, actually, got a problem with that??

>>4704687
>and i'm bi
>and i'm bi
>and i'm bi
>and i'm bi
>and i'm bi
lol you really are in middle school arnt you?

/soc & Math/

>>4704685
i dont speak math, put it in english

>>4704679
nah, special rules for trigonomentric functions
sin goes to -cos

>>4704689
>sin goes to -cos
lol no it doesnt it goes to -cos(x)+c
retard

>>4704687
>internet bisexual female

>>4704697
oh yeh, always a '+ C' after all integrals, now i remember

and fuck you, it just slipped my mind, that doesnt make me a retard

>>4704685
has to be injective

>>4704689
>sin goes to -cos
that means literary nothing
you have no variables
at all
how do i know if you mean int sin(x) dy or int sin(z) dx
or something along those lines

>>4704694
That's the definition. If you don't undestand it, it's not my fault. But please don't post on the topic then.

>>4704691
wat? no
you dont like that i shortened it?
'bisexual' then
happy now?

>>4704700
>always +C after integrals
>doesnt call it constant of integration
lol faggot

>>4704542
>>4704666
(((100+6) * 3)*75 - 50)/25
Call me James.

>>4704672
Alright, using your definition, tell me what the integral of f'(x)=120x(3x^2)^4 is.

>>4704701
No, it doesn't. A curve is allowed to intersect as often as you want. Even without intersections it's not necessarily injective. Just take a closed non-intersecting curve, i.e. <span class="math">\gamma(1)= \gamma(0)[/spoiler]

>>4704704
that isnt even what this threads about!
you guys hijacked it with 'hurr durr, EK doesnt know limits, infinite points, hard math, curves, integrals'
which has FUCKING NOTHING to do with this thread, you guys probably just think you're all really good because you learned math to a higher level than me.

>>4704705
>implying anyone besides children calls themselves bisexual

>>4704712
>HARD MATH
LOL NO
BWAHHAHAHAHHAHAH

>>4704708
stop fucking testing me, you want some math done then fucking wolfram it

>>4704713
what else would i call it?

>>4704713
i'm in my mid twenties and sleep with men and women. not sure what to call myself now.

>>4704712
That's what the other thread was about. It was about a sequence of curves. You are not supposed to post there, if you know neither what a curve nor what a sequence is.

>>4704722
A normal human being.
You have no reason to define yourself by definitions others have made in order to try and fit in.
Unlike EK

>>4704718
>>>/b/

>>4704687
>>4704687
HEY LOOK AT ME EVERYONE!!!!! I'M A GURRRL!!1 LOL XD AND ARE BISEXZUEL KAWAI DESU!!!!!!1

GIVE ME ATTENTION I'M BI I'M BI I'M BI I'M BI I'M BI I'M BI I'M A GURRRL I'M A GURRRL I'M A GURRRL I'M A GURRRL I'M A GURRRL I'M A GURRRL I'M A GURRRL

LOOK AT MY TRIPCODE I'M SO UNIQUE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!111111111111111111111

>--------------------------------------

You should have grown out of all those attention whoring antics in your late teens you dumb slut. This is a science and mathematics forum, not a place for you to attention whore with your pathetic gender and sexuality, though I suppose that's the only thing your vacant head could possibly contribute.

Tripfaggots are all the same.

>>4704725
>slut

Uh oh. You've done it now, m'laddio.

>>4704726
and if someone asks for my sexual orientation, i shoul say normal? that would be a lie. the norm is heterosexuality.

>>4704732
Your name is enough evidence of your immaturity, /b/tard.

>>4704721
wat? nah it was the trollmath with the 'perimeter = 4' bullshit on what is a 'circle'
so it has nothing to do with limits or integration and shit anyway.

>>4704725
shut up, i didnt bring it up, it was that fag who said my sexuality was 'curved' (as if that means shit, lol)

>>4704726
bisexual is a real word, dumass.
it aint 'normal human being' because its quite unusual, so normal people are usually straight.

>>4704625
>>4704622
the limit of tan(x)/x as x->pi is 0. i don't know why nobody called you out on this

>>4704718
EK, you are an annoying attention whore and a slut.
This board is for the discussion of science and math.
You have no reason to use a tripcode either, you are neither special nor unique.
Tripcodes should only be used for 1 thread, or a series of threads that are related to one another.
please leave

>>4704735
Lol EK can't even into Wolfram

>>4704732
If anyone asks you for your sexuality, thats fine
here EK wanted attention so "she" said she is bi, and people who are "bi" tend to say it for attention and to be different.
Im not saying you are, but EK is

>>4704739
He was using a sequence of curves that converges to a circle. You don't know any of these terms, so you weren't supposed to post in that thread.

>>4704745
dont blame me, it said 1. if its wrong its wrong, not my fault is it?

>>4704747
i didnt just randomly blurt it out, asshat, some other person brought up the topic in their post.

>>4704739
>bisexual is a real word, dumass.
it aint 'normal human being' because its quite unusual, so normal people are usually straight.
>translated into real meaning: HUR DUR, IM SPECIAL, IM NOT LIKE OTHER PEOPLE, I AM UNIQUE SO PAY ATTENTION TO ME

>>4704748
they wernt curves, they were horizontal and vertical lines.

>>4704751
>implying youre not gay

>>4704752
that aint what i said either, i dont care if you pay attention or not.
fucking filter me if you like

>>4704711
a curve is locally homeomorphic to a line, at the intersections this isn't the case.

you are thinking of a path

>>4704754
>hur dur i cant into dS

>>4704756
bi =/= gay

>>4704754
I gave you the definition of a curve (>>4704685).

>>4704749
it no doubt said 1 for a different limit. the problem is your understanding of limits, not wolfram alpha. i can get the correct answer out of the site just fine.

>>4704758
i copied in exactly what is said, CTRL-V style. so its not as if i mistyped.

>>4704763
yeh, and i didnt understand it, i said put in in english

>>4704738
>not answering the question

go girl

>>4704760
The curve being a one dimensional manifold isn't affected by intersections.

>ITT: EK cant into dS

>>4704766
There is no "put it in english". It's math. Either you understand and use it or you don't. In the latter case you better refrain from posting incorrect garbage.

>>4704766
Ctrl+V it again then, and screencap

>>4704774
well fine, but what did i even post that was incorrect? i never posted anything about limits or 'curves' or whatever, i kept it basic and talked about it in terms of things i actually knew about

>>4704751
>>4704749
>>4704739
You're fucking dumb. If you got an incorrect result from Mathematica the logical thing to do is to look for the error you made, not blame it on how stupid mathematica is. Mathematica is just a tool. If you bash your thumb with a hammer is it the hammers fault?

That's the same excuse fucking retards make when they can't into computers.
>HURR IT WAS THE COMPUTER NOT ME!!!!!!!!

I honestly don't know why you post on /sci/ when you would be more suited to reading the Hello magazine. Prostitutes like you should be kept away from maths, securely locked away in brothels.

>>4704766
>i didn't understand it

That's the fucking point. You didn't understand it. Why the fuck do you keep insisting in something blatantly wrong, if you don't even understand fundamental definitions?

>>4704770
you really think that a cross X is homeomorphic to a line I

hahahahaha

>>4704781
yeh i just checked, it's 0, not sure how i got it wrong before :/

>>4704782
>im gonna talk about math without knowing math
theres your problem

>>4704782
You said the limit is not a circle. It IS a circle.

>>4704754
>they wernt curves, they were horizontal and vertical lines.
>implying dS=/=sqrt(dx^2+dy^2)

>>4704778
It's because they don't really intersect. Think of it as a disjoint union.

>>4704783
>Prostitutes like you should be kept away from maths, securely locked away in brothels.
fucking dickhead, im not one nor would i ever be.

>>4704788
what? a circle with a perimeter of 4?
funny 'circle' you got there, brah.
you may as well post some more math gobeldegook proving that 1=2 for all the good it'l do you
i might not be good at limits and shit, but i know what the perimeter of a circle is

>>4704797
>implying a circle cant have a perimeter of 4
C=2pi*r
4=2pi*r
4/2pi=r
d=4/pi
herp derp

>>4704797
>>4704797
>perimeter
>circle
It's fucking well called the circumference, dumbass.

>>4704783
How delightfully unpleasant. This is why i love /sci/.

>>4704801
diameter is 1 in this example, were you not in that thread?

>>4704804
either.
both are correct
a circles perimeter is called its circumference.

>>4704797
You still don't get it. The sequence of curves converges to a circle. That doesn't mean that the sequence of their perimeters converges to pi. The reason is because the sequence of their derivatives doesn't converge uniformly. If you don't understand these words, please stop repeating your incorrect nonsense.

>>4704808
>what? a circle with a perimeter of 4?
>implying you didnt imply there exists no r such that C=4

>>4704793
You really are retarded. EK isn't the only idiot when it comes to maths.

I appreciate that filename.
lol

>>4704813
Ill agree that he is a tad retarded, but he sure as hell isnt EK tier.

>>4704813
That's first year stuff. Are you still in highschool?

hey EK, solve for x
(x*y)^2-z=1

>>4704813
thats unfair!
im not an idiot when it comes to math, i was pretty good at it, but only the stuff ive learned, and i never actually did limits, or if i did it cant have been in much detail coz i dont remember much of it.

>>4704821
2/10

>>4704822
x = (sqrt(z+1))/y

>>4704824
>im not an idiot when it comes to math
>im not an idiot when it comes to math
>im not an idiot when it comes to math
yeah, you are fucking Newton arn't you

>>4704826
You can rate your own shitposts. Come back when you took a real math course.

>>4704827
Hahaha.
Oh wow.
Just... Oh wow.

>>4704828
dont be a dick, i said im good at the things ive learned. if i havent learnt it then i obviously dont know it
you may as well be taking the piss because i dont know rocket science 'hurr durr, EK is such a retard she cant even into rocket science'

>>4704830
am i wrong? i didnt wolfram it, that was just me, i was using
<<<

whats the answer then?

>>4704833
So if you are aware of your ignorance, why did you post in that thread, while knowing that you don't know the required math?

>>4704836
you forgot the +/- retard

>>4704829
troll or give me the continuous bijection between X and I

>>4704833
>comparing limits to rocket science
limits are a fucking high school algebra 2 topic
EK confirmed for under 16

>>4704827
Let x=-1, y=1, z=0.
Does the original equation hold?
Does -1 = 1?
How can you not give two answers if you see ^2 anywhere?

>>4704837
then maybe i was ill that day, w/e
it aint my job to do limits anyway, its more a task suited to a computer
when the fuck am i ever gonna need this?

>im not an idiot when it comes to math
>i never actually did limits
>i dont remember much of it.

You realise what the above equate to?
Those statements mean you're an idiot when it comes to math. Plain and simple. Call a spade a spade.

You'd do the whole of /sci/ an enormous favour if you just packed your bags moved into a brothel somewhere. Even ugly prostitutes can make money.

>>4704843
>then maybe i was ill that day, w/e
>then maybe i was ill that day, w/e
>then maybe i was ill that day, w/e
>then maybe i was ill that day, w/e
>then maybe i was ill that day, w/e
>when the fuck am i ever gonna need this?
>when the fuck am i ever gonna need this?
>when the fuck am i ever gonna need this?
>when the fuck am i ever gonna need this?
>when the fuck am i ever gonna need this?
you are the biggest retard on /sci/ right now. Maybe ever even

>>4704838
because quite honestly i didnt think the math was that deep. it looked like a basic geometry problem.
i was just picturing it exactly as OP's pic said, cutting the corners of the square forever and ever untill you're left with a 'circle' with circumference of 4, and diameter still as 1.
and i know its obviously not a real circle because it cant be, because circumference is meant to be pi.

>>4704840
I see you really fail at math. There is no homeomorphism between <span class="math">X[/spoiler] and <span class="math">I[/spoiler], but between <span class="math">\gamma(X)[/spoiler] and <span class="math">I[/spoiler]. And that homeomorphism only needs to be local.

>>4704850
>because quite honestly i didnt think the math was that deep. it looked like a basic geometry problem.
>because quite honestly i didnt think the math was that deep.
> i didnt think the math was that deep.
LEAVE
LEAVE AND NEVER COME BACK
NOW, YOU DIRTY PERSON
>INB4 HUR DUR JUS FILTUR ME ECKS DEE
NO YOU ARE THE CANCER KILLING THE ENTIRE WORLD
FUCK OFF AND DIE

>>4704850
That troll picture is designed exactly for the purpose of fooling uneducated persons like you. Did you at least learn something?

>>4704857
>over-reaction
the caps may have been a bit much, but hes right.
please leave, you cant even appreciate math nor science

>>4704839
>>4704842
fine.

>>4704844
eat shit, you fucking asshole.

>>4704855
/over-reaction

>>4704861
no, you didnt learn shit.
Stay the hell away from all /sci/ threads, you dirty pleb

>>4704860
i dont do math tho, do i?
i Do do science tho.
so i can stay
:)

>>4704859
>Did you at least learn something?
yeh! stay the hell away from limits threads or have the fuck harrassed outta me

>>4704862
fuck you prick, i'm done here.

>>4704863
>I do do science tho
>I dont do math tho
thats contradictory
also
>emoticon
you are better suited for /soc/

(350x2)+(112/4)+(5-1)

anything else sucks

>>4704851
Not sure what your gamma is in this case, earlier it was from a continuous map from the unit interval to a topology. The definition of a path.

Some anon, perhaps you, claimed that injective wasn't necessary for a curve (not a path). You do get how if we allow non injective continuous maps we could get paths that intersect themselves?

As you say these are not locally homeomorphic at the crossing point, the X. Which is a definition of a curve.

Can't tell if you are a troll a retard, or just confused.

>>4704870
A curve is allowed to intersect. A curve without intersections is called a simple curve or sometimes a Jordan arc.

>>4704875
>EK does zoology
>calls it science
please tell me this is some sort of joke
not even EK is that retarded
r-right?

>>4704863
>>4704863
>zoology
>science

AHAHAHA, OH WOW!! WHAT A WHORE!!!!!

LOOOOOOOOOOOOOOOOOOL!!!!!!!!!

((87 + 4) * 8) - 8 + (12 / 3) = 724

OMG IM LOVING THIS THREAD

GO SUCK A MILLION DICKS EK

Can we sticky this thread, people need to know how retard EK is

>>4704879
We must be using different definitions, sometimes happens. The one I learned is locally homeomorphic to a line. Jordan curve is used for injective continuous images of a circle, curve for same of a line.

>>4704891
+1
I always knew EK was retarded, but I never suspected she was THIS retarded.

>>4704701
It only has to be injective if it is a SIMPLE curve.

>>4704895
Thats because a jordan curve is a SIMPLE, CLOSED curve. That guy said "jordan arc" which is different.

>EK being a stupid whore
nothing new here guys. move along

Y'all bein' trolled by EK