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#1 Re: Coder's Corner » new to coding » 2015-09-12 17:22:14

i am learning C from my class but it's only theory and simply programs. i was planning on making games on C or  C++ (most of the syntax is same for both, so i can change simple codes). but i do not know how to begin, are there any sites which can help me out?

#2 Re: Help Me ! » how to prepare for IMO. » 2015-09-12 17:11:26

only calculus and matrices to solve equations. the next year i shall learn discrete math (for computer science). i want to learn on my own from books or online because that is a faster method of learning for me. teachers are either too slow or are bound to teach only what's relevant to the syllabus. i want to learn because i enjoy math.

#3 Re: Help Me ! » Suggest me THE BEST Algebra Book » 2015-09-11 07:16:23

i think hall and knight is a good book to start with. but maybe you may need even more advanced books. i am not sure somebody from the forum should suggest something more advanced.

#4 Re: Coder's Corner » new to coding » 2015-09-11 06:08:25

I am learning C right now. higher level of languages on the way in the next sem.

#5 Re: Help Me ! » how to prepare for IMO. » 2015-09-11 06:06:41

I want to learn how to get answers... I am already in the first year of engineering college I don't think I can write the IMO (Correct me if I am wrong).

#6 Re: Help Me ! » how to prepare for IMO. » 2015-09-11 04:05:46

I have got this question from IMO 2015 (yes, I searched for the questions and couldn't solve the first question that I found)

"determine all triplets (a,b,c) of positive integers each of the form ab-c, bc-a, ca-b is a power of 2"

I wish to solve more and more of such problems but I don't know where to start from as I think I should start with some basic level problems and move onto such harder ones.
@bobbym

#7 Help Me ! » how to prepare for IMO. » 2015-09-10 07:45:25

gourish
Replies: 8

hi guys, i am passionate about math and solve math problems of a decent difficulty. i have seen that IMO has difficult problems. i wish to learn how to solve such difficult problems.
how should i prepare for IMO. what are the skills that i should have to solve IMO problems.

P.S. i know practice is the key, but i need to know what are  tools i need to have before solving the problems.

#8 Coder's Corner » new to coding » 2015-09-10 07:42:26

gourish
Replies: 10

hello guys, i am new to coding and have joined a computer science course in an engineering college.i wish to learn coding and since i have no background in coding and am very passionate about it, i hope you guys can show me the right direction.

P.S. my professor is too hell bent on sticking to the syllabus and considers me as a dumb guy. so taking her help is out of the question.

#9 Re: Help Me ! » Fibonacci sequence » 2015-01-05 22:26:46

still couldn't solve the problem... can you show me how to prove it?

#10 Help Me ! » Fibonacci sequence » 2015-01-05 03:51:03

gourish
Replies: 2

here is a question that i came across in a competition (math crusade 2014) which i couldn't answer

Q.) if the nth term of the Fibonacci sequence: 1,1,2,3,5,8,13..... is represented by Fn then for n greater then 4 and being a composite number
prove that Fn is a composite number

if you guys can show me the way i can walk the path.... like how should prove that a given number is composite when i cannot even have any idea of what it's factors may be...

#11 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:58:03

thanks for sharing... i bet bobbym is a professor isn't he?

#12 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:49:07

totally agree with you dude... well i can't find the pdf file online any site where i can get it for free

#13 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:40:05

okay.... but it's a U.S. author i don't think i will find it in one of my nearby libraries... and agnishom.... u sure? i thought u r a professor... i mean how did u manage to go through all this content.... don't u read other subjects as well?

#14 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:35:35

you are right.... well thanks for the help guys.... looking forward to buy it... though it costs like 10 grand in rupees

#15 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:29:04

okay... well it says that the book is for B.Sc in math... i am kid in 12th grade... you think it's the right book for me?

#16 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:22:37

ok... well i read that it contains graph theory... why is that necessary for combinatorics?

#17 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:17:54

well does it cover the basic combinatorics as well... i think i will need to rebuild my basics to be able to fully appreciate it's applications

#18 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:13:40

that's it's name?  "tucker book" on google gave me links to amazon having weird books "they serve beer in hell"  can you be more specific....

#19 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:10:00

so any suggestions for a good book that i can read for combinatorics... including such problems...

#20 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:07:59

i bet you didn't expand that term by hand....

#21 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 06:05:27

okay so we now get to back the question that u originally asked me.... right... we now need to find the coefficient of x^10 in this expansion where the whole term is raised to 3....

now getting back to the multinomial theorem....(i have got a fair enough idea of binomial theorem and have read that multinomial theorem is general form of bi theo..)

#22 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 05:56:38

okay.... go on... i have the polynomials representing the variables...

#23 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 05:47:29

x can be any number from one to ten but why does it mean that it can be represented as x+x^2 and so on till x^10 ?

#24 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 05:42:26

oh wait... i can't... i got it... i can not put a dash at an end... that would mean that one of the groups (variable) is zero which is against my constraint...

#25 Re: Help Me ! » number of solutions to a linear equation » 2014-12-14 05:40:51

but there's this one problem how did u find that there are 9 spaces when u know that there are 10 x's.... you can put a dash in place of each x.. so there must be 10 spaces right? what  am i missing here....?