/sci/ - Science & Math

>>15087891
You are getting trolled by your brain thinking that you are cut out for university. Your reaction is that of understanding this reality.

>>15087893
>you are cut out for university.
fine i guess ill just have to go back to a life of crime and ill start by stealing your car bitch boi.

>>15087893
You are getting trolled by OP, because he makes this post every week.

if you are a brainlet you should use books written for brainlets
pick up the 2 books prealgebra + beginning & intermediate algebra by elayn martin-gay and follow along with professor leonards lectures on youtube

>>15087904
delete this

Didn't read op's retarded post
How to master control theory ?
Can someone provide a road map to do 2 things
1. Intuitively understand control theory and laplace transform
2. Achieve mastery of the highest level
This shit just keeps popping up in all my ee courses
I can solve control problems, but never understood what I'm doing unlike, say, calculus
Also whenever I read any slightly above undergraduate engineering book, I find the conrol diagrams brutal
Do you recommend any books to learn control?

>>15087891
If reviews of Lang's books can be trusted (i.e., assuming the reviews aren't from filtered brainlets and midwits), his books have an extremely high errors-per-page ratio as far as math books go. Would make sense because he was a B-list mathematician who wrote his books in a stream-of-consciousness manner.

>>15087907
FUCKING NEWFAGS STOP BUMPING BAITE THREADS

>What the fuck is this even asking to do ?
It's asking you to transform (a-b)+(c-d) to (a + c) + (-b - d) step-by-step, by applying only the law of associativity (rearranging the parentheses) or commutativity (reversing the order of the operands) once at each step


(a-b)+(c-d)
= ((a - b) + c) - d (by associativity; let (a-b) = x; then x + (c - d) = (x + c) - d
= (a + (- b + c)) - d (by associativity; (a - b) + c = a + (-b + c)
= (a + (c - b)) - d (by commutativity; c - b = -b + c)
= (a + c) - b) - d) (by associativity)
= (a + c) + (-b - d) (by associativity)

Med school student here. What book would you recommend for someone interested in returning to math out of curiosity for the subject? Basic math and the like. Medicine is almost completely void of math, unless you're in biochem/pharmacology.

Nobody in the history of the universe has ever learned anything they didn't already know from this book. It's only prescribed precisely because it's austere and difficult so the prescribers can feel smart when you get filtered by it. People who ACTUALLY self learn basic math use khan academy.

>>15087955
I'd recommend getting into proofs and then real analysis since that is what gatekeeps all the interesting parts of math.

>>15087891
This thread again?

>>15087891
Yeah that's a meme book that we use to discourage people from learning math. It's not basic nor is it useful for beginners; however it's great for people who already learned everything and need some rigorous revision.

>>15087955
book of proof if you want something to ease you into the world of logic and proving things

>>15087891
It's asking you to use the commutative and associative properties to check your answer, dingus

>>15087955
Ignore the other autists. Brush up your high school maths with Simmons 'Precalculus Mathematics in a Nutshell', then either continue with Simmons 'Calculus with Analytic Geometry' or switch over to Kline's 'Calculus, an Intuitive and Physical Approach', both are good. I'd also recommend supplementing with Schaum exercise books for the computational part.

If you ever do get this far, THEN you can go for a book on proof writing, linear algebra and real analysis.

>>15087891
>>15087904
>>15087919
>>15088149
Still a better thread than those pop sci fags trying to disprove Einstein

>>15087955
Ignore the other autists. Just watch Khan Academy videos on YouTube. That'll teach you everything you need to know before tackling Hartshorne's Algebraic Geometry, which is pretty much the basis for all higher-level math. Hope this helps, man.

>>15087955
Applied Mathematics - Body and Soul

>>15087913
What are you confused about? What did you covered in your course?

>>15087934
You are a good teacher

>>15087891
>Justify each step using commutativity and associativity in proving the following identities.
(a-b)+(c-d) =
a - b + c - d = (associative rule)
a + c - b - d = (commutative rule)
(a+c)+(-b-d) (associative and distributive rules)

The book lied to you. You can't do it with only the commutativity and associativity. Best course of action is to give up without trying any more.

>>15087891
>>15087904
I actually tried reading this a few days ago and had the same problem. dont get me wrong, i understand commutativity and associativity and i understand what (a-b)+(c-d) = (a+c)+(-b-d) means, but what exactly is it asking me to do?

>>15088057
I didn't learn anything new but I love the authors prose. I love how he takes the number line and shows how it can be applied to many different things like temperature and time

>>15087891
>which one of you recommended me this garbage?
Someone told you to read Lang? Sure as fuck wasn't me.

>>15089037
Tú. Eres un comemierda hijo de puta y la puta de tu madre se esnifó el esmegma del yonki de tu padre.

Y me suda el capullo todo. Denúnciame, gilipollas.

>>15089296
>ostia tío joder qué pollas en plan joder ostia macho

>>15087955
>Med school student here.
Please consider

bump

bump

>>15088174
>Beginner's book on thing
>For people who are already expert in thing

>>15089296
huehuehue