vitamin d

a lot has changed, but fortunately this chat still looks like it has been programmed in the 19th century

@leslietownes It really has been quite a while.

@imbAF inverse image of open set is open

good day

dont know if you remember me

@XanderHenderson long time no see

dont really care too much

@Jakobian Still I think it's a win win but yeah

@TedShifrin You're right I added that in my second message.

@AlessandroTerminiello Don't want to be rude but this is an English site and it should be spoken English, also on general question and answers. Most people can't understand your messages. I think its best if you went into a private room. Then you can explain it without other messages interfering and this room is kept in English. If I'm btw they only one who thinks that continue it's not that important but I think it's a win win.

@Jakobian true but I don't have the time

@Jakobian They're not mathematicians, I think the term complex differentiable would be pretty complicated for them

why what

idk wdy think

yeah I think "super smooth" and "well behaved" should do it

@Jakobian By knowing derivativs I meant they know Calc 1 or 2 derivative rules so know complex definitions (no pun intended)

Perhaps I can "ultra smooth function" ;)

yeah

@Jakobian Yeah I forgot the holomorphicity but I don't really know how to explain it to the mentioned audience.

(Btw forgot to say function has to be holomorphic on its domain.)

@Jakobian What do you mean?

Note: They know the def and simple arithmetic of complex numbers and have a high school understanding of a function.

(I'm asking if it's also correct despite it's simplification.)

I'm preparing for a presentation and most of the audience are not proficient in complex analysis. Do you think I can say the following sentence: "If I have a function on a subset of the (complex) plane, then there might be a function which is equal to the orginal one on the original domain however is defined on a larger set. The second function is what we call the analytic continuation of the first one. It is important to note that it is unique."

china tactic

So it's possible?

Can we define a multiplication so that R3 is a field? (For example we can do this for R2 with complex multiplication.) Does it also work for R3?

actually 2

a

I have question

oh no

English?

are dayu helmets dot approved?

what do you think is the probabilty that an average beginner will crash or f* up on a ninja 400?

what do you think is the probabilty that i will crash or f* up on a ninja 400?

but im 18 now so i think it not really good moneywise

that makes sense if you're learning to drive 125 at maybe 16

:64959731

it's probably netwise less expensive than buying two different motorcycles

do you recommend them?

@RoryAlsop Isn't it also possible to reduce the power, not sure what it's called in english. So installing smth so that the bike has less power but you can also take it away

How do I know if it's too fast for me?

@RoryAlsop In my country it's not only legal but I can also drive it with only my theory exam which I have passed

@RoryAlsop what do you mean? I've never had a bike before

@RoryAlsop what do you mean by jerky on the throttle

Also I'm thinking financially.. don't wanna buy an new one after a few years

@RoryAlsop It's funny because everyone else says it's a relatively slower bike compared to most others. I don't know to whom I should listen

I'm a beginner. Do you recommend the Ninja 400?

@BobCross Hello!

hello