/sci/ - Science & Math

>>10352993
Your university must be garbage. In my math courses, literally everyone (including non-asian girls) are paying full attention. The closest anybody comes to what you're describing is a guy checking snapchat or instagram every now and then

>>10353004
my normal math courses are alright (full of international students and a couple white spergs) but any class that cs majors has to take is always fucking awful

>>10353015
My math structures class was half CS, they were clearly autistic and related the math to CS of course, but aside from saying "I wrote 200 lines of code last night and it's perfect" nothing was really cringe

>>10352993
>>he turns to me asks if I've played the new smash
>>"no"
What the fuck is wrong with you?
>>professor asks how to factor n^2 -3n-5n
Why would he even ask that? Is he seriously reviewing college algebra?
>>random clash of clans sound plays out full volume in the middle of class
How would you know it's clash of clans?
>>people actually don't understand set notation
CS majors in general don't understand.

>how do people suffer through an entire semester of this class?
Why the hell are you even taking it?

>>10353154
1. he looked and smelled bad and i really didn't want to talk to him
2. he asked what elements would be in the set {n|n^2-3n-5n=0}
3. i used to play clash of clans in fucking 6th grade of middle school
4. i've learned very quickly that they are not bright people
5. i'm taking discrete to learn some basic proof techniques because i couldnt get into the transition proofs class this semester.

>>10353185
>3. I used to play clash of clans in fucking 6th grade of middle school
>Initial release date: August 2, 2012

Thanks, now I feel old.

>5. I'm taking discrete to learn some basic proof techniques because I couldnt get into the transition proofs class this semester.

Why not?

It's like that in many CS courses. I visited some non-math lectures just for the heck of it and people were playing LAN games, world of warcraft and dota.

>>10353279
was this back in the mid 00's?

>>10352993
My discrete class had linear and intro to proofs as prereqs. This weeds out all of the CS and most engineers.

Our prof was a dick though. He'd give us a test that he never intended to grade. Then when no one finished, he'd ask us if we wanted the real test.

>>10352993
kek, this is hell

>>10352993
lmao, this is almost my math classes with physics students. Always asking for stupid scenarios. Next year he university is going to split math from physics entirely, would have been great to be born one year later, fuck retards. There's like only 6 guys out of 30 who are going to study math instead of physics in this class.

>>10353279
I used to do this in middle school

>>10353185
>i'm taking discrete to learn some basic proof techniques because i couldnt get into the transition proofs class this semester.

Your fault for going to a shitty directional school

>>10353264
5. they didn't offer it this semester. They offer a proof-based lin alg class this semester as a way to transition math majors into proofs

>>10353154
the only acceptable fighting game is any street fighter title, everything else is trash

>>10353185
>3. i used to play clash of clans in fucking 6th grade of middle school
>middle school
>CoC came out in 2012
holy shit get off 4chan my dude you are essentially underage

Not a bad thing to play games during that class, easiest class I've ever taken

>>10354160
>They offer a proof-based lin alg class this semester as a way to transition math majors into proofs
Then take that. It would be way better than discrete "math".

>>10354179
>college student
>underage
go back to plebbit

>>10354224
I'm taking both rn. I thought discrete would be slightly less spergy but it's really ez so I'll let it pad my gpa for now

>>10354471
>I'm taking both rn. I thought discrete would be slightly less spergy but it's really ez so I'll let it pad my gpa for now
Good schools prevent you from taking classes that overlap heavily like proofs and discrete, calculus and business calc, or honors physics and general physics for premeds.

>>10354753
My school does the same. I'm taking discrete and lin alg which are entirely different courses. Both were supposed to help transition into proofs.

>>10353154
are either of those books good

>>10355137
No.

>>10355260
>Thomas and cover
Fuck off nigger, do you have any idea how hard that is?

>>10354466
Youre 19
Youve made a post which is essentially a self congrats of your own perceived superiority
I have shirts with more life experience than you

>>10356539
It's average compared to other STEM stuff. It's probably because other CS classes are middle school level that you find it hard.

>>10357364
>reads the first couple chapters
>aVEraGe CoMpaRed t...
Gotta be kidding me junior. The other jewbird courses don't come close to the kinda nigger kung fu that's expected in info theory.

>>10352993
Wait how do you factor n^2-3n-5n?

>>10358920
Use the standard approach brainlet
>multiply both sides by the first coefficient
>group terms by their degree
>simplify further
>equate to zero and take out the common factor
Boom done. Even I remember these steps from high school 8 years ago.

>>10358920
from sympy import factor
from sympy.abc import n
factor(n**2 - 3*n - 5*n)

or you can know basic math, it's your choice.

>>10358920
Let [math]n^2 - 3n - 5n = 0[/math]
Notice how [math] - 3n - 5n = - 8n[/math]
[math]n^2 - 8n = 0[/math]
[math]n( n - 8 ) = 0[/math]
[math]n = 0, 8[/math]

Of course it could have been a typo and the expression is really [math]n^2 - 3n - 5[/math], in which case the steps to use the quadratic formula should suffice. Quickly checking the discriminant:
[math]b^2 - 4ac = 9 + 20[/math]
Your roots will be real, but they’re not gonna be pretty

>>10356551
Congrats. You're older than me and still was stupid enough to take the bait.

>>10352993
>be me
>walk into first day of class
>wait five minutes in silence on a chair next to the edge of the blackboard, just looking at my wrist watch with a bored expression
>it is exactly 9:00
>take out my notes from my bag
>begin copying on to the blackboard because I am a phD student and have to teach some classes
>fill the entire fucking blackboard with the basis for finite difference methods without pause
>turn around
>"any questions?"
>complete silence as they are still struggling to note it all down
>begin washing it off
>"W-WAIT" some guy croaks
>smile smugly to myself
>"let's take a five so you have your notes in order"
>sit back on the chair on the edge of the blackboard
>put on a i am not impressed expression

I have to take discrete this Summer which is when I technically graduate. I walk in Fall though. I switched from CS to Phys my Soph year so I took all the required CS classes for a CS Minor which it only goes up to Comp. Architecture class. The only thing left is discrete math. I saw some people mention that Physic students are taking discrete but my school only required LA/DE besides the obvious full calc sequence.

>>10361107
subscribed

>>10356551
Dumb bitch...

>>10359577
Why are you flexing basic middle school knowledge. The fact that you chose to pick on this actually makes you look worse (“even I”). People who know the basic math think you’re a brainlet who has to pick battles with people who don’t know 6th grade math in order to win. People who don’t know math think you’re an asshole.

The common /sci/ brainlet everyone

>>10353154
>>>he turns to me asks if I've played the new smash
>>>"no"
>What the fuck is wrong with you?

>>10361354
>Lets watch manly men in spandex play grab ass in the Superbowl!
>I hate socialism except for socialized sports! You'll pay for it whether you like it or not!

>>>/pol/

>>10361326
Fuck you faggot I have a gf. Am not a brainlet.

>>10362026
imagine believing football is comparable in faggotry to the shit in that image

>>10362289
Was that supposed to impress me? I have a gf too
>Am not a brainlet
not making a good case here

>>10354171
SFV isn’t really that great.
Unist is way better for fundamentals
UMvC3 is a way bette cuhrazy fighting game
King of fighters is way more technical

I like street fighter, but saying it’s the best and nothing else is good is being so far up your ass it hurts.

Discrete mathematics as a collection of topics (combinatorics, graph theory, etc etc.) gets balls to the walls difficult because you generally have nothing but your own intuition and creativity to fall back on. As in, a lot of discrete math is stuff you can’t really chase definitions to do all the work in writing proofs for you.

Unfortunately you generally have to take the specific classes like combinatorics and graph theory to even touch it. Introductory discrete math gives the subfields a bad name among undergrads of /sci/ who think the hardest stuff boils down to “prove they root 2 is irrational”

>>10362294
Yeah, football is way more gay.

>>10363356
>Discrete mathematics as a collection of topics (combinatorics, graph theory, etc etc.)
No. Graph theory, combinatorics, probability and number theory are stand alone fields in their own right and contrary to what cs brainlets believe, continuous math does pop up frequently in them.

>>10363962
>Graph theory, combinatorics, probability and number theory are stand alone fields
I never said that they didn't. I mean discrete in that the immediate structure/motivation is discrete. Obviously the lines blur, and that's evident in any interesting field. The lines between continuous and discrete are arbitrary when you go far enough.

>contrary to what cs brainlets believe, continuous math does pop up frequently in them
Continuous math does pop up all the time in them, but this really goes to show the arbitrariness of the label continuous vs discrete. I mean, there are technical distinctions based on the structures you're working in, but ultimately discrete structures and continuous structures end up meeting each other at sufficiently high levels anyway (and not just in hybrid systems). The problem is that "discrete math" classes almost always either exist as introductory courses in first proof based mathematics or they show up as a grad level topics course, and to suspecting students in other fields who only see the former, this paints a bad image of discrete math as "easy and elementary" when it's really fucking hard.

>cs brainless
Those are the same brainlets that made analytical combinatorics, modern computational complexity, type-two effectivity / computable analysis, etc. I do agree that your average CS major is pretty stupid, but CS theory is incredibly interesting across the board. Modern complexity theory (i.e. we've moved way past just circuit lower bounds in the 70s) has rapidly matured and no more is this evident from how many fields of math and science it already touches. The irony is that a lot of it is heavy on Fourier analysis / harmonics, and the majority of CS majors struggle with calc 2.

>mfw being the only EE in my discrete math class

>>10363446
The absolute state of cope

>>10361354
What kind of a coping friendless loser do you have to be to think GoT or IPAs are numale

>>10354171
>the only acceptable fighting game is any street fighter title

Actual SF nerds would hate you.