the pink pony is pinky pie

ok not very creative

@DominicMichaelis you know these stuff?

ehm ...

yeah ^^

haha

@DominicMichaelis no problem, no problem

else :

@DominicMichaelis HAHAHAHAHHA

@DominicMichaelis what time is it, Domick?

5 minutes past midnight

@DominicMichaelis aah

what time do you have ?

@DominicMichaelis 20h06

For a convergent sequence $\{a_n\}_{n\in \mathbb{N}}$ such that $\sum_{k=1}^{\infty}a_n$ is convergent, its sequence of partial sums is obviously bounded.

no

1/n

no?

ok wait sorry i wrote that wrong

or take any convergent serious with limit neq 0

@DominicMichaelis hehe series :)

in german it is Folge

@PeterTamaroff: I think I have gotten the idea of your question and also simplified the math at the same time :-)

we have the same wort for a episode

of a film

now the sum of its sequence of partial sums need not be bounded correct?

or wait

if $s_n := \sum_{k=1}^{\infty} a_n$ then can anything be said about $\sum_{k=1}^{\infty} s_n$?

@mick :)

the limit of the sum must be zero

so if we say a_n geq 0

we must have a_n = 0 for all n

@Charlie hi ! unfortunately i cant stay long

@mick I'm almost going too :(

@DominicMichaelis ok, that helps

I completed my profile ! @Charlie

@DominicMichaelis thanks

@mick Good!

nevermind :)

@Charlie Now you can read personal stuff about me

@mick Belgium, eh?

Okay guys, I have to go :)

@Dominic Bye bye see you!

@Charlie AGE !

@charlie bye sweetie

@mick see you!

@mick you are 14 =

@mick you are not 14

@DominicMichaelis Bye!

@Charlie why not ?

just because

lol

goodnight @Charlie

14 years old don't ast Let f(z) be a function meromorphic in a simply connected convex domain D (subset of the complex plane with positive area or the whole complex plane) where z is a complex number.

@mick :D. KID

@DominicMichaelis why not ?

afterall not all boys are into soccer !

because meromorphic is only for 18 +

@Charlie kid gohan :)

@DominicMichaelis Im 14 but not a virgin

xD

Goodnight fellows

good night

@Charlie be carefull with your diamonds ;)

Btw I always post a question before I go to chat. Guess that goes without saying by now ...

goodnight

@DominicMichaelis have a nice meromorhpic dream ;)

@robjohn bye

@AlexJBest bye

@Khromonkey yes, why?

@robjohn Hehehe, yes.

@PeterTamaroff Hello

@user43758 Who are you?

@robjohn Arfe you there?

Could you tell me how to "compose" $O$s?

I have $\lambda_n=1+\frac{\lambda}n+O(1/n^2)$ and I have $\log(1+x)=x+O(x^2)$. How do I get the $O$ expression for $\log(\lambda_n)$?

@anon the thousand hand jutsu is awesome, also the first's sage mode

im so tired math.stackexchange.com/questions/309579/…

Hi, could you help me tag this question? I used linear-algebra and set-theory. Someone deleted the set-theory tag, and maybe correctly, but I don't think linear-algebra fits either. It's not really a linear algebra question...

@Bartek I think set theory is OK.

@JacobBlack Why?

@JacobBlack "Spirit of the matter"?

@JacobBlack You're making it pretty subjective!

@Jacob So what do you think is the spirit of the matter? I'm also not sure that set theory fits, but I think it's much better than linear algebra.

We don't have tags for what the problem's flavour is...!

I think abelian groups maybe?

@JacobBlack I think set theory is OK.

Do you consider it rude for people asking you to check their answers?

@Khromonkey I think it is OK.

@Peter hmm, then should I rollback?

It is a good habit

@PeterTamaroff does this look allright to you? math.stackexchange.com/questions/309579/…

@JacobBlack Oh, that is an idea!

@Bartek Whatever you like. I, on the other hand, don't think linear algebra is appropriate.

@Khromonkey Nope. Too messy!

@Peter I also don't think it is! Actually, I don't even use the whole structure of a vector space, just the additive structure.

@PeterTamaroff where is it messy?

OK, I'll change it to set theory and geometry. We'll see what happens. :)

@Khromonkey its correct, but you should clarify that by taking the ratio of two terms with a term in between you obtain the square of the common multiple in the geometric series, so that way they can make sense of the first part.

@Khromonkey I mean untidy, hard to read.

@JacobBlack We should duel to death.

@Jacob Well, I need some tags... Geometry is very general.

@JacobBlack You want this world to end.