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So /sci/, what happens if we teach local CC students math the way Wildberger does? You'd get some pretty interesting results in the future wouldn't you?
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>>8579892
It'd be a good idea to teach rational trigonometry. Most people can't give a good description of what a sine or cosine within a year of taking standard trig anyway. Best to do away with those. Only problem is lack of a standard textbook on the subject.
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>>8579892
>those traps
Wildberger confirmed for not natty.
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>>8579957
>It'd be a good idea to teach rational trigonometry.
Eh, this, maybe.
I agree it does frustrate the student's knowledge of what math "is all about" to manipulate elementary functions for years before knowing what they "actually are," But rational trig seems very non-intuitive and heavy on plug-and-chug, to where you still couldn't compute "span" and "quadrance" quickly by hand in many cases.
Also how the fuck does he look so much like Molymeme here holy shit
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What music helps you to study? I listen to Mozart myself, even though it is proven that it takes away from your concentration.
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Music doesn't help studying you stupid tryhard wannabe
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>>8578623
Music with lots of japanese girls doing cute sounds like
https://youtu.be/DNPhk-97ZvQ?t=30s
https://www.youtube.com/watch?v=FRYDK5fIi58
They increase testosterone which increases IQ.
Sometimes I get allowed to do tests while listening to music on my cellphone and I have gotten only As when that happens.
That said... I always get As when not listening music but you know... I got super As those times.
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>>8578623
Very good rap
https://www.youtube.com/watch?v=HsVMr7NWuCU
https://www.youtube.com/watch?v=6fgjG9VcAko
https://www.youtube.com/watch?v=rGrqW3nx5HM
https://www.youtube.com/watch?v=gA88lEZJBdY
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Is it possible for a white couple with no black ancestors to have a black child?
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>>8577090
No.
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>>8577090
Yes
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Sorry bud. She cheated.
![2[1].jpg](https://i.imgur.com/yGiTEvg.jpg "2[1]")
How viable is artificial gravity using centripetal force?
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>>8578597
It's a gundam!
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>>8578597
Once you get a big thing spinning, it will only take a little push sometimes to keep it that way, so it seems pretty viable
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>>8578700
This.
Anyone who has used something manual that has a massive flywheel knows this well. Like a pottery wheel for example. Hard to get going, but after that it is really easy.
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How do you study science, especially physics, without becoming depressed? Death and the fact that I will be gone forever and heat death terrify me and send me into an existential panic attack whenever I read about stuff dealing with proton decay/ origin/ fate of the universe/ black holes and stuff.
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>getting triggered while reading science
What the fuck is wrong with you? Kill yourself.
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>>8570356
Sorry anon, my parents raised me to be a bitch.
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>>8570352
Baby's first existential crisis
Try reading the Meditations of Marcus Aurelius or some shit from Emil Cioran.
Anonymous
Where do you get AoPS online? 2017-01-06 06:48:00 Post No.8583436
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Where do you get AoPS online? 2017-01-06 06:48:00 Post No.8583436
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Where do you get AoPS online?
Anonymous
2017-01-06 06:48:00
Post No. 8583436
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I want to get the PDF version of the AoPS series. Currently searching for Volume II of the series. Tried even libgen.io . Help would be appreciated.
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Didn't you post this exact thread like 2 months ago
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Not the same person. I don't know what you're talking about. Honestly, I just want that book badly.
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Somebody help me
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Alright, I am in calc 2 right now, and I have 8 months until uni. I am going in for computer engineering, but I also want to get ahead in math before I get on campus. I am trying to a certain computer science exercise (bellman-ford) and just looking it up has shown me that I know nothing about discrete mathematics. The only real advanced math i have under my belt at the moment is calc 1, but as I said, I am starting calc 2 this semester and will finish it in may. Is my primitive mathematical knowledge enough to begin studying discrete mathematics? Also, can /sci/ rec me some good books to start learning discrete mathematics?
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>>8583306
I knew shit about math when I took discrete math apart from some rusty algebra and I got an A. So don't worry about it much. It's not that hard.
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>>8583306
Bait thread?
Calculus isn't advanced mathematics and neither is discrete. Discrete mathematics has nothing to do with calculus. The only prerequisite knowledge needed is basic pre-calc algebra.
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>>8583311
>posted from Middle of Nowhere State University
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I have a compulsion for checking that I have a heartbeat and I panic sometimes when I don't check it. Is there a reason for this? Is this the phantom limb syndrome of hearts?
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Very interesting. I'd say general anxiety coupled with a bit of hypochondria. Try increasing exercise as much as you can and recognizing that if you're conscious, you have a heartbeat.
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>>8583264
https://en.m.wikipedia.org/wiki/Cotard_delusion
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>>8583304
Entered my mind, not OPs diagnosis. Cotards is severe
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I'm currently doing a take-home assignment for my Physics course and I cannot for the life of me get these two problems.
If you guys could help, that would be greatly appreciated.
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>>8583176
Nice thumbnail dumbass
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>>8583178
Sorry, here is the full-size photo
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Anyone here own their own company?
I've tried both academia and government so far and the lack of monetary potential is really disconcerting.
Thinking private is the only way to go.
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We should partner together and make /sci/-U and get in on that academia money.
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I sell drugs so, kinda?
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>>8583055
Hi, my name is John, John Smith.
I'm not a DEA agent, but rather a 'cool kid' from your 'local' senior high. I am looking for a 'wack' fix, can you hook me up, my 'homie'?
Yours sincerely,
John Smith (that 'cool' not DEA kid)
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How do I know if maths is for me? How did you know? I am not entirely sure if math is what I want to pursue, although I can't think of anything better.
Also how do I know if I have what it takes to get a masters or not?
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>>8582959
are you high on the spectrum?
yes? math it is
no? stick to engineering
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>>8582967
>are you high on the spectrum?
Define high.
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>>8582959
You know if for some reason you were driven to study something in math, without it being a topic in class.
You know if you question why the things you are taught in class are true and have read on logic out of curiosity. And this is the only true indicator. If you don't care about where math comes from do not get a math degree because you will be bombarded with things that you will not care about.
If you just want to learn more math then do literally any STEM degrees. Everyone learns roughly the same mathematics up to differential equations. The only difference is that a math major will teach you why all that crap is the way it is all the way through it. And then beyond differential equations you will learn a lot of math that no one really needs to know unless they really reaaally want to know.
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Dear /sci/,
If gravitons are a particle, how can they escape the event horizon of a black hole?
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they don't exist, they're a placeholder theory for snobby physicists who can't just say "I don't know", kindof like dark matter
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>>8582788
"u cant gravity a graviton " - einstein
its just basic biology 101
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>>8582788
>If gravitons are a particle
...they're not
/thread
Hi /sci/ first time in this board.
I have a question for doctors/medicine students if you can help me.
I'm a psychologist and lately one of my clients is a transsexual. I am strictly anti transition because I do believe that the problem is in the mind not in the body. But my client is pretty sure he wants to do it. Can you explain me how MtF and FtM transition works? Like surgery details and alike (how penis becomes "vagina" or how vagina becomes "penis"). I need to show him that the transition is more harmful than staying the way it is.
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>>8582699
oh fug :DDDDDD
who the fuck cares about that? it's not your problem, mate
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>>8582699
They turn your dick inside out and make a fake dick if its the other way around. Let your imagination go wild as to how they do that.
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>>8582708
Well their future depends on me. That's why they pay me. And if in the future they kill themselves I will feel guilty, because I could have avoided it.
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Hello /sci/
Could you tell me what the chances are of me rolling the following results:
With 4d6 = 3x6 and 1x3
With 3d6 = 2x6 and 1x3
With 2d6 = 1x6 and 1x3
Do the same percentages also apply to rolling fours and twos instead of sixes and threes?
If not what would the percentages for those be?
Sorry for this noob question, I'm really bad at maths.
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>>8582540
>With 4d6 = 3x6 and 1x3
>With 3d6 = 2x6 and 1x3
>With 2d6 = 1x6 and 1x3
Your notation is unclear. Explain your problem more clearly and thoroughly so we can help.
Do you mean is it the same probability to roll a four as it is to roll a 2 or 3?
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>>8582540
The percentages would be the same for fours and twos as sixes and threes if it wasn't for the indents in the dice. You're most likely to roll a six and least likely to roll a one for this reason.
If we assume that each dice has a 1/6 chance of rolling all numbers then the math becomes much easier.
Without the differing weights taken into account you would have a 1/6 chance (0.166666667) of rolling any single number on a die. Moving the decimal over twice and you get your percentage of 16.666667% or round up to 16.7%
When you want to roll 2 specific numbers you need to multiply the chance by itself.
2d6 would be (1/6)*(1/6)=02.77777779%
This could also be written as (1/6)^2
3d6 would be (1/6)^3= 0.462962966%
4d6 would be (1/6)^4=0.0771604944%
When you apply rounding you get:
2d6=2.8%
3d6=0.463%
4d6=0.077%
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Why is it that for the Diophantine equation
[eqn] \displaystyle x^2 - Dy^2 = 1 [/eqn]
(Pell's equation) with fundamental solution math] (x_1, y_1) [/math] will have all other solutions in the form:
[eqn] \displaystyle x_{k}+y_{k}{\sqrt {n}}=(x_{1}+y_{1}{\sqrt {n}})^{k} [/eqn]
?. Anything I can find online claims it as general knowledge and skips over the reason it is valid.
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>>8582528
What's [math] D [/math] supposed to be here? An operator or a constant?
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The Wolfram Alpha article on it
http://mathworld.wolfram.com/PellEquation.html
has "slightly" more info on it. I just don't see how they go from (32) to (33) and (34),
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>>8582548
It's a natural number