/sci/ - Science & Math

>i don't want to buy the textbook
Yeah, do I really need to explain to you what a library is?

Learning from the internet is fucking retarded, only idiots from preschool will recommend it.

There's tons of books on discrete probability, I suggest you get yourself a few and start learning.

You can always use the internet on the side, btw. But using it as your sole source of information is a bad idea.

inbefore khan academy hurf

oh yeah, and sites about linear algebra or differential equations would be nice too- i'm doing ok in those courses so far but i'd like some backup sources in case i miss something in lecture. thx

>>2480327
lol oh yeah, kinda forgot that that thing existed

>>2480327
why do you say learning from the internet is retarded? i learned how to program from the internet. if you need someone to hold your hand through every concept, then you probably need to go to a school or something, but if you can pick shit up on your own if given a minimum amount of instruction than the internet is a great "place" to learn

>>2480381
>comparing learning "programming" with learning maths
Seriously... I don't even know where to begin..

Ok, first things first: math isn't programming. Try to learn about abelian varieties, ideal class groups, classification of finite simple groups and koszul complexes on the internet and then report back to me...
Seriously, learning the basics of programming is fucking trivial. Getting proficient at it is another matter, that takes time and experience.

But whatever. Maths gets A LOT easier if you have a "unified" approach. That is: one textbook to follow (for example), so the proofs build up on each other and everything grows naturally.

If you learn from different sources you will have to deal with a lot of different definitions, varying levels of rigour and of course, every author develops kind of his own language.

>if you need someone to hold your hand through every concept
Ok this makes me fucking rage. PLEASE go to your local library and pick up a copy of Serge Lang's "Algebra". If you call this "holding hand", oh well.. I dunno what to say.. I wanna kill you to be honest.

>>2481833
Read that.
Yeah, that's basically him holding your little babby hand.

Fuck off retard.

>>2481847
oh cool. Then you can explain something to me. Right in the first chapter, on solvability of groups, proposition 3.1 says
>An abelian tower of a finite group G admits a cyclic refinement.
The proof starts with
>It clearly suffices to prove that if G is finite, abelian, then G admits a cyclic tower.

Why can we assume G to be abelian?

inb4 404

>>2481930
>>2481833
this thread is now about crazy ol' Serge.
Good night, sweet prince.
:c

Serge was also a great real life troll.
>In 1986, Lang mounted what the New York Times described as a "one-man challenge" against the nomination of political scientist Samuel P. Huntington to the National Academy of Sciences.[1] Lang described Huntington's research as "pseudoscience", arguing that it gave "the illusion of science without any of its substance." Despite support for Huntington from the Academy's social and behavioral scientists, Lang's challenge was successful, and Huntington was twice rejected for Academy membership.

>Lang kept his political correspondence and related documentation in extensive "files". He would send letters or publish articles, wait for responses, engage the writers in further correspondence, collect all these writings together and point out what he considered contradictions.

lulz, my hero!

>>2480334


Linear Algebra
http://tutorial.math.lamar.edu/Classes/LinAlg/LinAlg.aspx

Differential Equations
http://tutorial.math.lamar.edu/Classes/DE/DE.aspx

>>2481930
what's taking you so long? What is that? You only pretended that you read this encyclopedic hard-to-read graduate level 900 page monster cover-to-cover?
I do not believe this! Lying on the internet? Not in my time!
What has become of the world!