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Archived threads in /sci/ - Science & Math - 268. page
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File: population parameters.jpg (17 KB, 306x231) Image search: [iqdb] [SauceNao] [Google]
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Hey scientitions,

I'm wondering if any of you fine anons have any constructive comments/thoughts about the following.

I have 10 measurements of the useful life of a device. So I don't have a lot of data. I was wondering if any of you agree with using a conservative confidence interval using student t and chi square to estimate mean and standard deviation of my device's life . Sorry about my english - not a native speaker.

thoughts? thanks again anons.
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gonna bump once or twice waiting for a based anon to chime in.
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no one?
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You could bootstrap it

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I have a challenge:
assuming all the sqaures have side length 1, what is the radius of the smallest circle you can circumscribe arround 1, 2, 3 (and so on) sqaures? r1 and r2 are easy, r3 is a bit harder. Let's see how many you can get.
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.999999 != 1
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>>7665379
You win!
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A gave up on solving the general problem so have #3. #4 is obviously trivial.

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Recreating the Big Bang with a quantum computer.

So /sci/ I'm not super tech savvy nor do I know a whole lot about computer science but I've been doing a lot of research on quantum computing and am wondering why there hasn't been an attempt yet to "recreate" the Big Bang with on of the new D-Wave 500QB computers.

From my understanding 500QB (or even the new 1000QB) computers are powerful enough to store more information then there are atoms in the universe. If this is true, then why not create a program that contains all the laws of quantum...
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>>7665249

this is pretty low quality shitposting desu
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Too long
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>I'm doing a lot of research in quantum computers
>I read a pop-sci article once

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Reminder that math is really applied philosophy. Mathematicians are technically "philosophical engineers." All mathematicians do is plug things in and design logical systems according to axioms.

Why don't you switch to the major that actually requires original and creative thought, where you get to make the rules?
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>>7665233
If you're so creative, why don't you post something original?
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Of course it is. Also Philosophy = Reason = Logic > Mathematics.
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wow you really persuaded me or something

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mfw I'm 27

mfw I started watching pre-algebra videos by because I want to know math well (I've nearly forgotten everything except the basics since I graduated)

mfw I'm not ashamed of that and instead take great pleasure in learning something for the sake of learning

share your old guy/new knowledge story
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>>7665231

I'm doing my master's at 25. I'm definitely more mature now and I have a 4.0 so I think things worked out for the best.
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Keep on truckin' OP!
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>>7665231
I myself am not old (yet) but a friend of mine went back to school and is currently in his senior year of physics at the ripe age of 35. Keep doing what you love OP

File: not on my level.jpg (50 KB, 673x491) Image search: [iqdb] [SauceNao] [Google]
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>tfw you beat Wolfram Alpha
Is anyone here smart enough to work out the closed form? I'll post the answer after 20 replies
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$\frac{1}{n}-\frac{1}{n+1}\sum_{1}^{n}\frac{1}{n}(-1)^n$
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0
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>>7665071
fail

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Alright so I recently eared that in SOME instances DARKNESS can go faster than light.
1)Is it true?
2)In wich instances
3)Can we use this knowledge for something usefull or do I just need to shove it up my ass?
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No, but there are some instances where the speed of heavy is faster than the speed of light. Such as when going downhill.
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If by darkness you mean empty space then yes empty space expands faster than the speed of light.
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>>7665040
why thank you kind sir

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What is the "coolest" area of math research at the current moment? That is, is there a field in which most of the current math researchers are studying?
Pic unrelated
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>>7665017
Triple integrals
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Triple integrals
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>>7665020
>>7665025
dank meem m420

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>"Humans only use about 10% of their brains. If we used more we could do X"

Is anyone else fucking tired of this meme? How do you even begin to debate someone if they keep coming up with shit to back this up?
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The same way you debate with people who say "Women get paid 70% for the same job that men do."

Say "that's been disproved time and time again and you're only regurgitating it because you WANT it to be true."
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>>7664970
>Is anyone else fucking tired of this meme?
No one I have ever met, who wasn't completely retarded (or a child) has said this.

>How do you even begin to debate someone if they keep coming up with shit to back this up?

The answer is to never speak with such an adult ever again, and immediately moon walk out of the conversation. Such rare cases of complete retardation are impervious to logic, it's best not to waste time with them.
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>>7664970
We use all of our brain. Every part has a different function. The accurate line is, we only have the capacity to use %8 percent of our brain simultaniously or something like that. Which means we are very well capable of using our entire brain, but we can hardly multitask.

File: integral1.png (42 KB, 372x148) Image search: [iqdb] [SauceNao] [Google]
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Let's see who on /sci/ is actually good at the ultimate form of mathematics, integration.
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>>7664932
I'm not, have done very little work with it, and it was all over the MAT this year, which fucked me because all my prep was in algebra, geometry, trig and functions/derivatives
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>analytic integration
no thanks
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>>7664932
Math you can do by typing it into a calculator is boring.

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How do you deal with cold logic /sci/? I love engineering because of the creativity and personal touch involved, but for me math and science seems too impersonal. It seems that it heavily relies on some brain functions that can be named IQ. That is no artistry involved and the leap of genius is something impersonal that could be done by someone else in another time.
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well i prefer mathematics and science and i think you have the wrong attitude
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>>7664897
well engineering is a bit "artsy" and it does give a lot of freedom because you're dealing with matter and materials, but to make leaps in mathematics requires far more creativity than great mathematicians are ever credited with.

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What are the best online/youtube courses out there for learning C++? Reddit seems to be of the opinion that you can't learn C++ on an online course, and the consensus I got was that the only way to learn it is from some thousand page reference book with very small print that goes into so much depth that it takes any joy out of programming.

I'm not looking for that. I'm just looking for a course that goes through the basic shit covered in a semester long intro to software engineering course (from loops and conditional statements, to dynamic memory allocation,...
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>>7664883
C++ primer
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>>7664883
>reddit

fuck off
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Check out "newboston" (or something like that) channel on yt.

File: logic.jpg (140 KB, 611x542) Image search: [iqdb] [SauceNao] [Google]
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How do you study/memorize quickly?

This is a big dilemma in my life.
I'd like to have a system which allows me to remember anything I want to remember on command. I've delved into mnemonics and memory palaces and have only used them for things like remembering numbers.

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i have poor memory for specifics, so i learn to derive everything in language from basic principles

languages like english are difficult because, unlike german or mathematics, just mashing together basic ideas doesn't lead to a coherent object
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>>7664876
So you're a native german?
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Look past the religious stuff and its still solid advice

File: 1430128612479.jpg (1 MB, 1920x1200) Image search: [iqdb] [SauceNao] [Google]
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ok, so what if i came up with the solution to make things travel faster than light, would you recommend i submit it here; online. Or publish it in a paper with my name on it, because i fear that i may be a target if i submit this, because ive been sitting on the solution for about 2 days and i fear that my safety may be in jeopardy if i release it.
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But you didn't
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The pasta is stale m8
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>>7664848
Just post op why would your safety be in danger? Your either a genius (unlikely) and you've figured it out (unlikely) or your an idiot and we'll laugh at you (likely) either way I don't see why anyone would try to hurt you.

What's a Banach Space?
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>>7664838
that doesnt exist, you just made that up to troll /sci/
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>>7664843