CRPxTumblr - 2015-06-10

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00:47

Eric Stucky has removed Eric Stucky from the list of this room's owners.

Eric Stucky

@jcprx: You're in!

@AlexClark: Incurrence is now the only owner of the room, so.

jcprx

01:17

alright!

hello everyone.

Eric Stucky

hello!

hey Alex :)

user147690

Hey!

user147690

I just woke up xD

user147690

Actually, what are everyone's time zones?

Eric Stucky

-4, -7, +10 and then there's me

I will be between -3 and -7 at various times during this project

user147690

01:24

Alright, so I'll just set my other two windows clocks to -3 and -7 and it'll cover everyone else(probably not that necessary actually, -3 is just PM)

Eric Stucky

So like 1a GMT is the time that we would do group meetings, right? b/c that's 6p 9p 11a

user147690

Sure, that'll work fine for me(for most of the project) - for the last few weeks it might need to change, but I don't have my next semester schedule yet

Eric Stucky

I'm not sure that will ever be necessary but it's good to know that it's feasible.

jcprx

yes, that's fine.

Eric Stucky

Alex do you have the chatjax thing enabled?

I never bothered to do it

so I don't know how

user147690

01:29

@EricStucky $\LaTeX$ in chat

user147690

Just a bookmarklet to click on each time you visit

Eric Stucky

:P there you go

Also I guess somehow I missed that the end of the project was at the beginning of your next semester

but I guess that makes sense

jcprx

that is to enable latex in the chat?

Eric Stucky

yeah

user147690

My final exams for this semester are on 15th complex analysis, 19th functional analysis, 23rd abstract algebra II

user147690

01:33

$\frac{\color{green}{\LaTeX \text{works}}}{\color{red}{\large{\checkmark}}}$

Eric Stucky

Ah, I see it now

jcprx

same

Eric Stucky

Also 15th! That's next Monday :/

user147690

Yep, I'll have to do long days to make up for doing both(this and exams), fortunately they are relatively distinct, so I can rest from one another by alternating

Eric Stucky

Yeah I wish I had realized this earlier, I would have tried to push it back a week to make the first week easier on you.

user147690

01:37

@EricStucky That's alright, next semester will probably be harder, so it's for the best

Eric Stucky

You're ridiculous <3

user147690

So you have already done a heap of work on tropical geometry @Eric? I found some comment on the old wiki page for tropical geometry by you

Eric Stucky

Haha, not really. I know everything up to p171 in that article but that's about it

Tbth we were really hard pressed to relate the tropical geometry to the research problem.

user147690

@EricStucky And your blog post implied(atleast to me) that everyone didn't do too well?

Eric Stucky

01:39

haha I didn't want to be too strong about it but yeah

user147690

Were there many teams though?

Eric Stucky

Hm, maybe I shouldn't say this publicly :/

but

there were about 16 teams

user147690

That's actually way more than I expected

user147690

For the record, I am essentially always on chat(atleast in the main room, and I am awake)

Eric Stucky

Well then I guess you'll be the go-to when we want to talk with someone :D

user147690

01:49

@EricStucky Haha sure

user147690

Does anyone here code?

jcprx

i'm a CS major so yes.

i use C++.

user147690

Oh good, I haven't done anything really for awhile(last was python a year ago, and matlab 2 years ago)

Eric Stucky

I know a small amount of mathematica and could be convinced to remember some Java

Actually I also have a medium-sized bunch of MATLAB code. That might actually be useful :P

jcprx

never coded with matlab.

only java, c++, and obj-c so far.

Eric Stucky

01:57

It's kind of a pain in the butt. Probably one of the open source projects are better.

Objective C! Was that for a course?

jcprx

yes a course i'm taking right now. :)

to eventually make apps with.

Eric Stucky

Weird. Did they talk about the philosophy behind using that language? I thought it wasn't very well liked.

jcprx

ah-ha no.

albeit, my algos professor was a c++ fanatic.

he said it's the best programming language to use for many applications.

i'm incline to agree.

inclined*

Eric Stucky

I believe it :)

Haven't used it seriously but if it's basically C-like with an extra object oriented framework then it's hard to see how that could be bad.

Er, easy to see why it would be useful *

jcprx

it is!

user147690

02:03

For latex: $\odot$ - $\odot$ - $\oplus$ - $\oplus$ - $\Bbb R^n$ - $\Bbb R^n$ - $\mathcal H$ - $\mathcal H$ , $\bf x$ - $\bf x$

Sami Brooker

oh, is everybody here right now? that's neat

Eric Stucky

yeah!

If you click on the first starred message then it gives you some links to see the latex formatted in the chat

Oh gosh don't use bold format vectors ;_;

user147690

Haha that's what the document uses

user147690

Which do you prefer, overline, underline, arrow?

Eric Stucky

I prefer nothing. It's faster :P

user147690

02:06

(or just context)

user147690

$x\in\Bbb R^n$ - $x\in\Bbb R^n$

Eric Stucky

Yeah I mean it's nice to read but when I think of writing it I just get a bit sad :/

user147690

You can just use the define command though

user147690

$\def\o{\overline{x}}$ Now you could just $\o$ vectors for x

user147690

02:08

$\o$

Eric Stucky

Can I do that? $\o$

Haha that's a nice perk of the system :P

user147690

$\def\o{\overline{x}}$ is what I used there(you can actually break commands, by redefining actual ones)

Eric Stucky

I mean, I didn't have to define anything tho; it just let me use your command

user147690

Yep it will stay defined until my command leaves the page(which is hidden in my 'now you could just...' message)

user147690

Chatjax actually just renders the latex multiple times a second from top down

Eric Stucky

02:10

That's sensible.

Arright I probably need to head out for the evening. So I'm either going to bed or nightblogging, we'll see :D

Glad that everyone's made it :)

user147690

@EricStucky I'll start doing some pomodoros(for the pomodoro technique). Have fun!

jcprx

i'll be working all day tomorrow on the tasks you assigned us. so i'll probably be on the chat as well during that time.

16 hours later…

jcprx

18:27

@EricStucky i'm kind of confused about #3 of the polyhedral fan question. what do you mean by invent a classification scheme?

Eric Stucky

18:41

It's intentionally vague, but

there's a nice classification scheme of finite dimensional real vector spaces; it's the nonnegative integers and you specify one by choosing one

Abelian groups have a slightly more complicated scheme

positive integers themselves are classified by multisets of the prime numbers

So the idea is something like: find an object which somehow encodes all the 2dPFs

(#3 is definitely the hardest question on the PF side of the sheet, fwiw)

jcprx

19:30

ah, i see what you mean. thanks for clearing that up.

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♦ $Mathematics$ CRPxTumblr

This chat room is for a research group to discuss the topic of...

geometry tropical-geometry

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$Mathematics$

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♦ $Mathematics$ CRPxTumblr