/sci/ - Science & Math

[Anonymous No.3182133]

So I'm a black guy and I come to this thread regularly to browse and contribute to like-minded, science indulged individuals.

however, on occasion, there are threads straight up insulting my race.

sure my race has it's people, but so do all races. Sure you could insult the criminal black people that do next to nothing but bad for society, but don't include hard working individuals like me.

there are many other black people like me as well. Sometimes you need to see the good in things.

[Anonymous No.3182139]

herp derp some grammatical mistakes, ignore them please.

[Anonymous No.3182138]

>>3182133
Vocal minorities, don't sweat it.

[Anonymous No.3182141]

how about quit being a dirty nigger

[Anonymous No.3182142]

>So I'm a black guy

No you're not, you're a white troll or a liberal

[Anonymous No.3182152]

Sure. I'll bite.

So, it's not actually the genetics that give black people a bad rap, though something as obvious as dark skin does make them easy to target. The real problem is that most black people in the world are uneducated and poor. Even in developed nations, they tend to have a higher degree of poverty and lower income (and all the other socio-economic issues that go with that). This is not necessarily their fault, but it still creates the stereotypes that even educated, intelligent black people must then deal with.

[Anonymous No.3182153]

>>3182133

You are attempting to reason with individuals who are extremely racist, regard our people with putridity and will do anything to tear down your mental state. After /new/ was destroyed, the refugees came over to /sci/ and /int/. Some went over to /sp/, but they always had a mildly racist userbase.

Also, 4chan has always had a racist overtone to it; ALWAYS. At first, it began as a joke; over time, however, the true/real racists came out of hiding.

[Anonymous No.3182151]

OP here.

I'm of somali descent.

yes I am black in case you think i'm some white troll.

[Anonymous No.3182168]

>>3182153
it was actually quite the opposite, with the real rascists being the first to vocalize where other anons (like 3182141) have parroted back racial slurs. also, they're usually trolls pretending to be rascists

[Anonymous No.3182178]

>>3182153
I've been on 4chan for about 6 years and it's always been racist, I'd even say that now it's less racist since it's mainstream... unless you were referring to before 2005, that I don't know

[Anonymous No.3182196]

Listen, if you don't like it here, you can always go to /somali sci/ and discuss black holes with khat stoners.

[Anonymous No.3182211]

>>3182168
Nope, just racist.
I've been on here many a year, and I can safely say there has always been racism.

[Anonymous No.3182252]

>sure my race has it's people

the problem is, your race has more than it's fair share of criminals...

...and the welfare moms...

The way we have to simplify education for your people sucks.Now we all have to suffer for your lack of ability. I also blame you for the Joos who rub our faces in multiculturalism like your shitty lazy motherfucking study skills are everyones responsibility except the person who should be studying..

[Anonymous No.3182264]

>>3182252
You know what pisses me off a lot? Minority scholarships

[Anonymous No.3182273]

i agree with OP. Some blacks have contributed a lot to humanity even if not as much as perhaps other races.

I also think while blacks seem to have a lower IQ in general, they still follow the gaussian distribution of IQ and especially mixed individuals can be very smart.

Furthermore I think that while the black people commiting crimes stereotype is true, I do not believe it is because of their race but a failure by society to educate them, give them perspective and give them jobs, I mean real jobs, not some shitty wal mart greater or mcdonalds fryer. A career where they can progress.

that being said I think we need to be able to accept race differences if convincing scientific evidence is presented and not dwell on white guilt.

[Anonymous No.3182282]

ok white racist and niggers alike.

Prove who is smarter by solving this limit to a exact solution.

Show your work too.

the limit of (x^2+x-2)/(x^5-1) as x approaches 1

I have the answer and will post it when its solved

SHOW YOUR WORK AND STATE YOUR RACE

[Bigot Pony !XIxc6BpKnU No.3182280]

>>3182264
I know, right? If you won't do the coursework, and they have to shlep your grades just to keep you there, then you're making your race look bad.

If they have to dumb-down your education just so you can pass, then education for EVERYONE suffers.

[Anonymous No.3182287]

>>3182282
Do your own homework or use wolframalpha next time, you faggot
http://www.wolframalpha.com/input/?i=limit+of+%28x^2%2Bx-2%29%2F%28x^5-1%29+as+x+approaches+1

[Anonymous No.3182288]

>>3182282
l'hopital's rule
(2x + 1)/(5x^4)
answer is 3/5 when x = 1

am white

[Bigot Pony !XIxc6BpKnU No.3182290]

>>3182273
>a failure by society to educate them
Some decisions you have to make for yourself, and education, social position or wealth improves things little to not at all for the statistics.

[Anonymous No.3182295]

I just straight up hate black people.

[Anonymous No.3182296]

>>3182282
HURR DURR DO MY HW

Seriously learn hospitals.

[Anonymous No.3182297]

>>3182273
I think the idea of giving them jobs is inherently flawed. What we really need to do is encourage them to make their own jobs. However, the question of how to do this without discriminating against other races remains an issue.

Personally, my favorite is poverty-based programs. If we target people based on their socio-economic backgrounds instead of their race, we elevate those who are willing to work hard of all races, including black people.

[Anonymous No.3182304]

>>3182296
>>3182288
without L-hospital rule faggot.

I know you will never get it so here is the answer

(x+2)(x-1)/(x^5-x+x-1)

(x+2)(x-1)/(x(x^4-1)+x-1)

(x+2)(x-1)/(x(x^2-1)(x^2+1)+x-1)

(x+2)(x-1)/(x(x-1)(x+1)(x^2+1)+x-1)


(x+2)(x-1)/((x(x+1)(x^2+1)+1)(x-1))

cancel the (x-1) and plug and chug

I'm mexican btw

[Anonymous No.3182306]

>>3182304
lol white fags got told by a mexican

[Anonymous No.3182308]

>>3182304

>L-Hospital rule
>mexican
No shit, spic.

[Anonymous No.3182309]

ITT: Confusing trolling with racism

Whatever gets a reaction out of you is fair game for trolling. I am >>3182295. Few people on 4chan actually have prejudice against certain races more than others, and I say this because everyone is racist to some degree, as racism is generalization taken with false logic and/or with logic but taken to extremes.

So I don't think you should get all butthurt because you or your people were called nigger.

After all, it was your dirty, mindless, and wasteful people who came up with the term "u mad", so start applying the lessons it teaches.

You nigger.

[Anonymous No.3182313]

>>3182304
you fit the stereotypical mexican that works hard for very little reward; you should have used the more efficient way

[Anonymous No.3182324]

>>3182313
Bitch you aren't suppose to use L'hospitals rule for this problem. I should have stated that in my original post.

[Bigot Pony !XIxc6BpKnU No.3182329]

>>3182309
>Few people on 4chan actually have prejudice against certain races

Having to dumb down the education system because some Joos say we have to be multicultural makes me pretty goddamn angry.

At the Joos, and at the people we have to destroy education for.

[Anonymous No.3182336]

http://talk.collegeconfidential.com/african-american-students/

http://talk.collegeconfidential.com/african-american-students/1083191-affirmative-action-unfair-adva
ntage-deserved-provision.html

To keep this /sci/ related, you should visit the links above to see the entitlement and the persecution complex of the blacks there, it's sickening to read how they think they deserve affirmative action.

[Anonymous No.3182337]

>>3182324
yes you should have you dumb spic
oh well what am I mad about, you'll get a full-ride minority scholorship just for knowing l'hopital's rule

[Anonymous No.3182339]

>>3182329

Thank you for underpinning my point.

[Anonymous No.3182346]

>>3182304

1) You're a fucking retard for not using L'Hopital's
2) That is the most idiotic way I've ever seen to evaluate this expression.

<span class="math">\displaystyle \lim_{x\to1} \frac{(x+2)(x-1)}{(x-1)(x^4 + x^3 + x^2 + x + 1)}[/spoiler]


<span class="math">\displaystyle \lim_{x\to1} \frac{(x+2)}{(x^4 + x^3 + x^2 + x + 1)}[/spoiler]

<span class="math">\displaystyle L = \frac{3}{5}[/spoiler]

[Anonymous No.3182349]

>>3182337
stfu white faggot. I fucked like ten women from your race in high school. I punched 1 in the stomach when you claimed to be pregnant. nothing came out so i guess the bitch was lying

[Anonymous No.3182359]

occassionally a place called str0mfr­0nt raids 4ch with propaganda. a good % here are just trolling, and others are just remnants of /ne­w/, who were disproportionately racist.
i don't mind a civil discussion about racial differences and appropriate policy, it's just people tend to exaggerate every facet of it. it really shouldn't be as big of a deal as people make it to be.

[Anonymous No.3182367]

>>3182346
cool story brah

now do this one without l'hospitals

limit of (4-sqrt(16+h))/h as h approaches 0

I realize wolfram will give you the alternate form of this but try and do it on your own.

Also

>implying you didn't use wolfram to find your expression

[Bigot Pony !XIxc6BpKnU No.3182370]

>>3182339
>my point

But... you see... hating the way education has been ruined... is racist.

[Anonymous No.3182373]

>>3182346
also how is getting the correct answer idiotic? oh thats right your a storm faggot. AKA EDGY WHITE FAG WHO IS A CLOSETED HOMO

[Anonymous No.3182407]

>>3182373
>how is getting the correct answer idiotic?
1+1=x ...find x
1(1+1)=x
1/1(1+1)+67-67=x
1/1(1+1)=x-67+67
1/1(2)=x+0
-x+1/1(2)-1/1(2)=x-x+0-1/1(2)
-x+0=0+0-1/1(2)
-(-x+0)=-(0+0-1/1(2))
x+0=0+0+1/1(2)
x=1/1(2)
x=2
Duuurr...

[Anonymous No.3182410]

ITT: whities who think they're good at academics, LOL

Ban affirmative action and legacy status, and watch white admission rates VANISH in every top college, save for some joos.

Inbefore "we invented the world herp", that's great, and I really appreciate it, but before parroting racist shit on an anonymous imageboard, please make sure you know proper English, as it is probably your only language, and not knowing the difference between "your" and "you're" will make you look like an illiterate moron, not a member of some master race.

[Anonymous No.3182412]

Those people do not speak for the majority of /sci/.
They're just assholes and trolls

[Anonymous No.3182418]

>>3182407
my answer takes creativity. yours is a cookie cutter formula you probably learned in algebra 2.

so fuck off white fag


Mexican-American Master Race here

[Anonymous No.3182428]

>>3182370

And you are a troll who posts with MLP. I know you secretly love jews just as much as whites, blacks, mexicans, and all the other retarded races.

[Anonymous No.3182430]

>>3182410

This.

whites bitch and moan about affirmative action, but have no idea how much they benefit from it, both on the books and off the books.

[Bigot Pony !XIxc6BpKnU No.3182432]

>>3182412
>assholes and trolls
>Baw, they mean
Minority scholarship degree detected.

Your opinion might be valid if you earned your education.

BTW, I'm your dean, NlGGER!

[Anonymous No.3182438]

>>3182432

being white is the equivalent of a fifty point SAT increase in comparison with a kim or a kumar.

baw daw I'm so discriminatered against, please shut it, faggot

[Anonymous No.3182440]

>>3182435

No, no my love, I adore MLP and all the followers, I'm just calling you out on trolling as an anti-Semite/whatever you like.

[Bigot Pony !XIxc6BpKnU No.3182435]

>>3182428

[Anonymous No.3182445]

The only whites who benefit from affirmitive action are the ones as stupid and lazy as blacks.

[Anonymous No.3182447]

>>3182438
haha, make me laugh some more faggot. Take away AA and all blacks are replaces by asians.

[Bigot Pony !XIxc6BpKnU No.3182449]

>>3182430
Whites benefit by having to work harder to earn their education, while Leroy gets his papers without being able to read them.

[Anonymous No.3182457]

>>3182447

and the whites.

brown did a run for PLME without any affirmative action, and white people constituted only 15% of the admits. And all of those were jewish.

15% were indian, the rest was CHING CHONG TING LONG LONG

look up texas A&M repealing AA as well.

[Anonymous No.3182462]

>>3182449

uh lolno wrong racial group, you're confused with asians.

whites benefit from being the majority, without a niche anywhere.

spics nigs and natives benefit from liberal affirmative action.

[Bigot Pony !XIxc6BpKnU No.3182467]

>>3182440
>call ouy out
Because I'm raging at the way people actually do things.

I think -you- need to apologize for letting our education system get crippled.

[Anonymous No.3182479]

>>3182462
Except in South Africa

[Anonymous No.3182480]

The u.s. should adopt a new policy. Any white person should be allowed to benefit from AA, as long as they undergo surgery to have their skin permanently darkened.

AA should also be directly based on skin tone, not baww I'm 1/16 black so disadvantaged

[Anonymous No.3182490]

>>3182467
i know everyone holds this common believe that education and intelligence is rapidly getting worse but its just not actually i would say its better now then it has ever been before

[Anonymous No.3182499]

>>3182490

>its
>its
>then

not sure if trolling or typical american grammer skills

[Anonymous No.3182500]

>>3182418
I'm >>3182407
I'm not >>3182346
I was just showing you what a complete dolt you are.
>my answer takes creativity
That's cute, keep thinking you're special...because you are.

As for OP, I am a white male living in South-Africa. I consider most of my black friends I met in my ChemE class more intelligent(and more cultured) than most of my white friends. The problem is people develop prejudices against black people because of the actions of a few, especially Nigerian immigrants(I don't know if you've heard about the fucked up things they're doing aver here), people like Julius Malema(he's a disgrace to the entire continent really) also don't help your case. The affirmative action here is also really bad...one of my friends(white obviously) didn't get into med school with near perfect grades while black kids with 70-80% averages got in. But yeah anyway I think it's unfair that people judge an entire race based on a few retards...but at the end of the day you can't do much against stupidity(from both races).

[Anonymous No.3182508]

>>3182467

I'm sorry my dear, but either you misquoted me, or you haven't reviewed your post well enough.

Please don't stop trolling though, I would hate to imagine you frolicking in any other manner.

Or would I? (dirty girl)

[Anonymous No.3182511]

Let me ask a seerious queestion. How come blacks hate whites so much? When was the last time blacks did something to help whites (after slavery was repealed, of course)? Why is there no AA for whites in Africa? We all know blacks hate whites because they always try to hurt whites and never help whites.

[Anonymous No.3182512]

nice to know that in the future aren't gonna be any whiteys like the whiteys we have nowadays

[Anonymous No.3182514]

>>3182500
>ChemE

hahahahahahahaha FAGGOT

[Anonymous No.3182517]

>>3182490
Don't confuse intelligence with knowledge. We know more stuff because we have access to resources lie Wikipedia but it doesn't mean we're actually smarter.

[Anonymous No.3182520]

>>3182511
blacks like whites for the most part. those that don't like whites generally don't like most anyone else regardless of race. and there are the occasional vocal few who hate whites exclusively.

[Anonymous No.3182518]

>>3182514

>he thinks he'll get respect by mindlessly adhering to unpopular, forced memes

[Anonymous No.3182523]

>>3182490
You're half correct. People are just as intelligent as they were before, but education in America is VERY fucking shitty, ESPECIALLY after Bush created the "no child left behind" program, forcing schools to pass EVERYONE, no matter how bad their grades are. Now you can't fail if you do nothing.

[Anonymous No.3182524]

>>3182518

>he thinks he's gods gift to man cause he's an engiqueer

[Anonymous No.3182527]

>>3182517

intelligence doesn't mean much.

knowledge and hard work is what actually matters, unless you are retarded.

[Anonymous No.3182531]

You humans and your silly notions of "race."

[Anonymous No.3182535]

>>3182524
engineers serve our country more than the troops.
god bless the engineers

[Anonymous No.3182537]

>>3182499
>>3182499
> Thinks incorrect grammar on the internet matters

[Anonymous No.3182538]

>>3182520

>blacks like whites

You realize that would make black people racist, right?

Liking someone simply because of the color of their skin?

It should be "blacks form bonds with whites in the same way that they form bonds with other blacks"

[Anonymous No.3182545]

>>3182535
>this is what engiqueers actually believe

[Anonymous No.3182542]

>>3182524

>implying I'm not :3

[Anonymous No.3182540]

>beign /sci/ and considering the concept of different human races as valid and not some forced upon cultural/propagandistic constructo

[Anonymous No.3182547]

>>3182538
it would only make them racist if they treated the whites differently than the blacks

[Anonymous No.3182553]

>>3182547

You must be one of those racist blacks the poster you quoted was talking about.

You need help!

[Anonymous No.3182559]

>4chan is discriminating
WHAT?! I HAVE NEVER HEARD OF SUCH INSOLENCE! You better teach those bastards!

[Anonymous No.3182561]

>>3182556

I'd let a pony choke on my dick, so long as it had straightened, purple/red hair and a heart tattoo on its flank.

[Anonymous No.3182564]

>>3182524
>>3182518
Wasn't me
But I sincerely hope you don't discredit engineering as a career path just because of a meme on /sci/. You do know that, that 'meme' started when /b/-tards used raided /sci/ with "engineers are gay" threads.(in case you haven't noticed /sci/ is something like 80% engineers). It only became a meme after newfags picked it up and started spamming it.

[Anonymous No.3182571]

>>3182561

[Anonymous No.3182580]

>>3182133
Because when 90% of people on here are talking about niggers, niggers =/= black people.

Its like saying rednecks you don't mean all white people.

[Anonymous No.3182594]

>>3182367

Any idiot who needs WRA to evaluate a simple division of a perfect square nth term needs to get the fuck out (i.e, you).

I can't help but realize that you are incapable of posting Latex-formatted equations which just furthers the point that you are an undergrad (probably first year) calc student who thinks he knows anything at all.

You're giving a math major (junior year) problems that you think are actually difficult.

The whole point of selecting a problem for someone to solve is to construct it in a manner where WRA won't help them at all. You have failed to do so. Cheer up emo kid.

Yet again, you're posting simple math.

<span class="math">\displaystyle \lim_{h\to0} \frac{(4 - \sqrt{16+h})}{h}[/spoiler]

You want me to solve a simple problem that involves multiplying by the conjugate of <span class="math">\displaystyle \frac{4 + \sqrt{16 + h}}{4 + \sqrt{16 + h}}[/spoiler]?

Good lawd put some thought into your questions beforehand. None of this is hard.

Fucking higher school kiddies...

Now how about I tear you a new asshole:

We start with a tank containing 50 gallons of salt water with the salt concentration being 3 lb/gal. Salt water with a salt concentration of 4 lb/gal is then poured into the top of the tank at the rate of 6 gal/min and salt water is at the same time drained from the bottom of the tank at the rate of 4 gal/min. We will consider the water and salt mixture in the tank to be well-stirred and at all times to have a uniform concentration of salt. Find the function S(t) that gives the amount of salt in the tank as a function of time (t) since we began pouring in salt water at the top and simultaneously draining salt water from the bottom of the tank. How long before there will be 120 pounds of salt in the tank?

Good luck plugging that into WRA. =)

[Anonymous No.3182602]

>>3182373

Because that's the most roundabout method to do this problem. It's not correct. If you were given this on a timed test, you would waste time using your method where you could just learn to factor out the (x-1) by simple division.

Not closeted at all BTW and am in my early twenties.

[Anonymous No.3182607]

Stop being a faggot, OP. If you take the internet seriously, then you deserve to be called a nigger.

[Anonymous No.3182615]

We start with a tank containing 50 gallons of salt water with the salt concentration being 3 lb/gal. Salt water with a salt concentration of 4 lb/gal is then poured into the top of the tank at the rate of 6 gal/min and salt water is at the same time drained from the bottom of the tank at the rate of 4 gal/min. We will consider the water and salt mixture in the tank to be well-stirred and at all times to have a uniform concentration of salt. Find the function S(t) that gives the amount of salt in the tank as a function of time (t) since we began pouring in salt water at the top and simultaneously draining salt water from the bottom of the tank. How long before there will be 120 pounds of salt in the tank?

As much as I agree with you (on the HURR LOOK A LIMIT GO FIND IT CUZ THEN YOU GOOD AT MATHZ!), this is just a stereotype diff. eq. WRA won't solve it, but maple / matlab will ;o

Also, honestly, all the maths suggested here so far can be EASILY computated without any skill. Since they can be computated without any skill involved, or even knowing what you're doing, they're hardly a referance...

[Anonymous No.3182644]

>>3182615

It is but requires more critical thinking. You aren't just applying limits willy nilly, not understanding what they mean.

For this problem, you need to know how to set up the equations and understand Leibniz notation. You need to know what to integrate with respect to. You need to identify <span class="math">\displaystyle \frac{dy}{dx} - q(x)cos(y) = p(x)y[/spoiler] which enables you to use the integrating factor since it's in the form <span class="math">\displaystyle \frac{dy}{dx} + P(x)y = Q(x)[/spoiler].

You also need to be aware of your constants and rewrite and rename them as you condense both sides. It's not just simple plug and chug.

[Anonymous No.3182649]

>>3182594

>how long before 120 lbs of salt

it starts out with 150 lbs of salt and only increases.

[Anonymous No.3182651]

>>3182615

It is but requires more critical thinking. You aren't just applying limits willy nilly, not understanding what they mean.

For this problem, you need to know how to set up the equations and understand Leibniz notation. You need to know what to integrate with respect to. You need to identify <span class="math">\displaystyle \frac{dy}{dx} - Q(x)y = P(x)[/spoiler] which enables you to use the integrating factor since it's in the form <span class="math">\displaystyle \frac{dy}{dx} + P(x)y = Q(x)[/spoiler] such that <span class="math">\displaystyle u = e^{P(x)dt}[/spoiler]

You also need to be aware of your constants and rewrite and rename them as you condense both sides. It's not just simple plug and chug.

[Anonymous No.3182654]

>>3182651

lol white people can't into trolling.

[Anonymous No.3182658]

>>3182649

Yes...the rates are the same. It should have been this:

We start with a tank containing 50 gallons of salt water with the salt concentration being 2 lb/gal. Salt water with a salt concentration of 3 lb/gal is then poured into the top of the tank at the rate of 3 gal/min and salt water is at the same time drained from the bottom of the tank at the rate of 3 gal/min. We will consider the water and salt mixture in the tank to be well-stirred and at all times to have a uniform concentration of salt. Find the function S(t) that gives the amount of salt in the tank as a function of time (t) since we began pouring in salt water at the top and simultaneously draining salt water from the bottom of the tank. How long before there will be 120 pounds of salt in the tank?

[Anonymous No.3182666]

Alternatively, try this one:

Laplace Transform:

<span class="math">\displaystyle y'' - 6y' + 9y = 6t^2e^{3t},\; IC\;y(0) = 0, \; y'(0) = 0[/spoiler]

None of this is hard. Just trying to put the undergrad in his place.

[Anonymous No.3182674]

>>3182658

6.66 min.

black here

[Anonymous No.3182679]

>>3182674

also that problem was retardedly simple, props for making a stupid mistake in the original post of it.

[suicidalmathmajor No.3182681]

>>3182282

Implying that limits are hard in any way.

[Anonymous No.3182686]

[Anonymous No.3182691]