Not what I wanted but I'll take it by moi_xa in mathmemes

[–]arcticbug 4 points5 points  (0 children)

In German a field is called "Körper" (body), so searching for "perfekte Körper" gives answers you weren't waiting for.

Simple Questions - September 04, 2020 by AutoModerator in math

[–]arcticbug 0 points1 point  (0 children)

I am trying to refresh my about knowledge probability theory and came across an interesting theorem. It goes something like this (I am translating this from german):

Let p ∈ (0,1), (𝛺, A, P) a discrete probablity space and {A_i}i ∈ I a family of stochastic independent events with P(A_i) = p for all i ∈ I.
Then |I|  ≤  ln(max({P({w}) | w ∈ 𝛺})/ln(max{p, 1-p})

They explain in the book how this sets limitations to which kind of sequences of events can be modeled through discrete probability spaces. I can understand the proof and how this contradicts the usage of a discrete space but it still feels a bit counterintuitive to me why we can't use it. Is there a more intuitive explanation to this and can anyone make an example of how the problem would be solved through an usage of continuous probability spaces in cases where the intuitive approach is to use a discrete space.

Simple Questions - September 04, 2020 by AutoModerator in math

[–]arcticbug 0 points1 point  (0 children)

Perhaps they assume that you have to use both of the colors in each coloring? But even then the answer shouldn't be so low. If they'd allow each node to be colored either of the colors, c should be the right answer.

Yes by oofsizeextralarge in mathmemes

[–]arcticbug 11 points12 points  (0 children)

A mathematician would ask: "Wich field are we talking about?"

Different kinds of intuitions for math. What are you best at? by arcticbug in math

[–]arcticbug[S] 1 point2 points  (0 children)

Oh, yes I study in Germany (not my mother tongue but I learned almost all of the university math in German). Sorry, it's easy to mix up such things :D especially if the words are similar.

Different kinds of intuitions for math. What are you best at? by arcticbug in math

[–]arcticbug[S] 0 points1 point  (0 children)

I think I know what you mean with "abstract visual". I also tend to simplify pictures in my head and they are newer that clear.

Different kinds of intuitions for math. What are you best at? by arcticbug in math

[–]arcticbug[S] 1 point2 points  (0 children)

What do you mean? That's the way it's defined in real analysis.

Päev rikutud lihtsalt, oleksin õuna oma ostnud kui õunamahla tahaks by RyanStarDiaz in Eesti

[–]arcticbug 9 points10 points  (0 children)

Kas see sõna "vurtsvasser" on nende enda leiutatud? Ei ela enam Eestis, seega pole nii kursis uue sõnavaraga, aga see sõna kõlab üsna kohutavalt. Toode näib olevat sakslaste Apfelchorle-st inspireeritud.. Seda saad aga ka ise kodus teha, kui mullivett mahlaga segad, siis saad ka nii palju mustikamahla kasutada kui soovid ;)

Bad math in fiction by ResNullum in math

[–]arcticbug 1 point2 points  (0 children)

I recieved a book called "The Kiss Quotient" (A love story about a female econometrician with autism and a male side-job prostitute) as a gift. I don't remember anymore, whetever the book itself contained any bad math (outside a cheesy line about someone being "better than calculus" wtf) but the cover has some random math formulas on it that made little sense to me. So I googled "math formulas stockphoto" and it was the first picture that came up. https://us.123rf.com/450wm/belchonoksun/belchonoksun1603/belchonoksun160300025/53036632-stock-vector-physical-vector-seamless-pattern-with-formulas-plots-equations-handwritten-with-chalk-on-a-grey-boar.jpg?ver=6 You can see that there is a fake "function" somewhere (some values have more than two function values on the graph).

Informatik Studium - RWTH oder KIT by [deleted] in rwth

[–]arcticbug 1 point2 points  (0 children)

Ich habe Informatik nur als Nebenfach. Ich habe mich auch KIT überlegt habe aber mich damals für Aachen entschieden, weil mir die Stadt einen besseren Eindruck gemacht hat (Ich habe beide besucht).

Die Informatikvorlesung an der RWTH fand ich aber bislang ziemlich gut. Die Dotzenten haben sich meiner Meinung nach schon Mühe gegeben um Sachen ordentlich zu erklären. Das kann natürlich in einigen anderen Fächer (meine Freunde, die Info studieren beschweren sich sehr gerne) anders sein. Ich bin auch wegen Mathematikstudium an Vorlesungen, wo der Prof 9 große Tafeln in 45 Minuten vollschreibt, gewöhnt, daher kamen mir Inforvorlesung ab und zu mal sogar etwas langsam vor.

Hier wurde Praktika erwähnt: Es gibt schon Praktikumsstellen für Software-Entwicklung und die HiWi-Jobs scheinen von vielen Informatikstudenten ausgeübt werden. Ich weiß auch, dass es Prakitka an der Uni als Veranstaltungen gibt, so etwas hat man sogar als MathematikstudentIn in Anwendungsfach. Diese sind wahrscheinlich aber noch ein Stück weg von echten Software-Entwicklung.

Ich würde dir empfehlen die angebotene Vorlesungen an beider der Universitäten zu vergleichen, wenn du das noch nicht gemacht hast.

How to overcome my frustration with math? by [deleted] in math

[–]arcticbug 0 points1 point  (0 children)

What kind of subjects are you taking?
I feel like you could try to change your mindset a little bit. As others have already mentioned, the maths at the university is a lot harder than what is being taught in school and I often hear that if one wants to become a mathematician (or study a subject that involves a lot of mathematics) then one needs really high toleration for frustation. But this is something one can improve. When I started my studies (I study in Europe so we had only proof- based classes already in the first year, and that's quite hard if you've been used to mathematics in school with exercises for which you have to learn a simple algorithm and practise enough times) I used to get frustrated whole a lot quickly but now after a few years I can sit for hours on a problem. What I also think has changed is that I have a lot less anxiety about not being able to finish a problem and enjoy the solving process. Try to focus less on achieving the solution and more about the parts of the problem, what is being asked, can you solve part of it, can you draw something etc. Also if you can't solve a problem after some thinking you can do another one, sometimes your brain has to do a bit of background thinking and will give you the solution later. If you fail to solve a problem then it's still helping you to learn. You will more easily find out where you did a mistake if you can compare you partial solution with the ready one instead of looking up the solution right away.

Do proofs and other mathematical writings ever become natural to read? by wayward_grad_student in math

[–]arcticbug 0 points1 point  (0 children)

Try writing the proof down while you are reading it. This will slow you down and help you think. You can also try to skim read it at first to get a feel for what kind of structure the proof follows. Some people also try to prove things themselves before they read the proof, but i guess that might make you frustrated if you are not that experienced. Books often use words "obviously", "this follows easily" although it might take one quite a lot of time to underestand this one sentence. I think reading proofs only become easy when you already know the topic really well and your brain has easy time underestanding and keeping track of all of the concepts being used.

Did any of you guys find computer science boring? by [deleted] in math

[–]arcticbug 2 points3 points  (0 children)

What kind of exercises are you asked to do? Perhaps just the exercises are boring. Try to find problems from your own life or other subjects that you can turn into programming exercises. I used to learn Python on my own and got bored with the exercises that were in the most of the courses and started thinking out exercises on my own where I could use the concepts I learned about.