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Archived threads in /sci/ - Science & Math - 169. page

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Codemonkeys, CompScis unite!

I am a senior undergrad (3rd year, last year in Europe) studying theoretical physics and I'd like to get into programming. So far, I didn't have much need for it, but I'd like to be prepared when I eventually have to juggle big data or need to utilize some numerical procedures. I'd like to begin with.

If there are some physicists who alredy have good experience in programming I'd like to hear your opinions, advices and tips too.

So far, I've learned basic syntax of C++, Pascal, JS and currently learning Python. I'll probably stick with python. What are the next steps for me in basic computational physics (basic kinematics, lattice visualization, celestial dynamics)? What libraries do I need and where do I start learning how to use all this stuff?

Thanks a bunch for any tips, mates.
4 posts and 1 images submitted.
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I suggest you continue learning C++ for it is more performant than python. This is not important if time isn't a problem (typically it is!). There are various books on computational physics which you could look up.

In general physicists write shitty code and you'd stick out of the crowd if you know about various principles in software design, so looking into some blogs on "expressive code" could be a good idea.

If you don't know about datastructure I strongly suggest you take a course in it. Without knowledge of proper data structures your simulations won't terminate in your lifetime :)))

GLHF
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>>9103022
Thanks, mate. desu I'll probably stick to Python until I start getting into more difficult simulations. I really don't know anything about data desu. Do you have any recommendations for 3D visualization, plotting, graphing and stuff in Python?
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>>9103029
I've used PyQtGraph for plotting simulations realtime. It got the job done. I haven't used other visualization libraries for python so unfortunately I can't compare it to other libraries. I know that matplotlib is popular too but I chose against it since other people said matplotlib wasn't really good for updating plots in realtime.

Python is a good choice too, it will serve you well. Many physicists use python, I'm sure you know this, so there is usually plenty of help to get if you need it :).

Datastructures speed up your computation by a lot if used properly. They are especially useful for simulations which takes place in [math] \mathbb{R}^n [/math], like a billiard simulation with 10k particles. I feel like I'm babbling so I'll just end it there.

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I know that its a map from a base manifold to another but my head just cant get it visualised..
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>>9102950
(OP here) for example how exactly the mobius strip is a bundle?

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Anyone here know what upper level math classes are like in terms of difficulty and material? I'm starting soon (math major) and want to know what I'm getting into, I've only done up till linear algebra. Any books so I can get feel of it?
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Expect to watch at least -1/12 of your classmates commit sudoku
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>>9102719
If your fundamentals are solid (Calc 1,2,3 if you're American) + Linear algebra as you described, the only thing you should need is some sort of class that goes into proof writing (Discrete Math). Otherwise you really should be fine as long as you take it seriously and properly manage your time. Also study correctly and efficiently of course.
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>>9102719
http://4chan-science.wikia.com/wiki/Mathematics#Overview_of_Mathematics

can science explain this mans affinity to lions and hyenas?
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Physisorption mostly
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He raises them from babies
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>>9102639
Schizophrenia.

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I'm considering taking the Kurzweil's bait and putting my family on an Alcor plan so if we miss the cyborg thing we can get thawed later.
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jokes on you, these guys will have to go out of business sooner or later. long term cryogenics is not sustainable with their business plan.

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yo /tists

im taking a placement exam monday morning for college maths. thing is its an "accuplacer" "smart" test. where basically the questions are on a tree and hold varying value and depending on how correct or flat out wrong you are determines the next question posed to you. i havent dont any algebra1 or geomentry type stuff in a couple years and im concerned that if i fuck up on a couple of those questions ill never be able to climb out of the retard corner of the test and get placed in remedial or something. what should i do? am i being paranoid or am i actually a retard.

tl;dr
> how do beat "smart" test
3 posts and 1 images submitted.
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How confident are you in your math skills in general ? Math placements for incoming college freshman are a joke, and if you get placed in a lower level class your probably a brainlet.

Anyway most colleges will have practice tests available online or at the very least the list of topics that will be covered on the test.

http://rense.com/general96/seriouscourses.html
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>>9102629
pretty confident but also pretty rusty.
ive taken the practice test and i only got into the logarithmic functions.....

I want to learn probability theory and some statistics at a high level. I already graduated with a BS in chemical engineering so I have a strong math background. I have been trying to motivate myself to work hard but have been wasting my life. I think it would be easier if I had a study partner to help me with this stuff. Anyone want to learn probability theory?
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hmu at [email protected]

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The trend towards extremism and sensationalism has led me to firmly believe that humans are genuinely too stupid to lead nations. What are the chances of an AI being a candidate for a president/prime minister in our life time? I feel only a robot is informed and rational enough to control the world.
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>>9102512
in our life time?
Dude we are not capable of creating even a hamster equivalent AI, yet!
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>>9102512
>What are the chances of an AI being a candidate for a president/prime minister in our life time?
INFINITE
N
F
I
N
I
T
E
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>>9102512
>What are the chances of an AI being a candidate for a president/prime minister
Pretty much guaranteed assuming humanity doesn't annihilate itself or make some sort of anti-robot movement within the next couple hundred years.
>in our life time
Nope.

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>I eat cup of noodles
>burn my mouth on the noodles

Is it the noodle itself hot or is it the water and oils surrounding it?
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How can the noodles be hot if our mouths arent real?

To actually answer your question, it's the salt in the water of cup-o-noodle that is hot.
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>>9102495
>Is it the noodle itself hot or is it the water and oils surrounding it?
the noodle is mostly water itself you know that right
>>
The water is better at heat transfer than the noodle or oil.

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We get constantly bombarded with political arguments on this topic but I hardly ever see any scientific studies on the subject.

What are the academic arguments for/against net neutrality? I am primarily looking for papers that study the impacts of NN on consumer welfare (by game theoretic methods or whatever) and whether or not NN should be implemented/rejected as policy.

Of the small amount of literature I can find on the topic, it seems like most advise against it. This is true for most of the economic/electrical engineering literature I can find.
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Political Science and philosophy board when
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>>9102406

I'm looking more for CS/Engineering/Economic work, similar to the vein of http://ieeexplore.ieee.org/document/7835173/.
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>>9102400
>We get constantly bombarded
What do you mean by "we", Peasant?

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Anyone in laser physics/optics applications?

Recommend books, software, resources, suppliers.

Holography and generating arbitrary light fields are of particular relevance to me.
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>>9102391
siegman's "lasers" textbook is an old but priceless reference for all things laser related

Also are you Kaleb?
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>>9102631
>are you Kaleb?
Not even a little.
>>
Hey op. , just graduated with a bs in physics and work in optics. Mainly lasers and microscopes

Where can I find raw, unedited photos taken from places like the hubble space telescope? Colorised, enhanced pictures are all well and good but I would like to know where I can find some genuine pictures
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On the internet, I think.
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>>9102381
A
P
O
D


"apod"

Ayyyy POD

alternitively there are websites for the big telescopes n you can download huge ass pictures off them. sometimes many tens of GB big. but im not gonna find those 4 uuu
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>>9102396
wow this post was actually helpful. thanks.

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Is there a common cortical algorithm?
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>>9102344
Maybe
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>>9102344
Interneurons.

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Flash quiz! What is the shape of this equation?
3/4×3.14r (squared)h?
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rectangulish

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Books to study set theory? Want to explore maths in my free time. Help me /sci/
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>>9102178
http://4chan-science.wikia.com/wiki/Mathematics#Set_Theory.2C_Mathematical_Logic.2C_and_MetaMathematics

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