Mathematics - 2016-11-04 (page 2 of 2)

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arctic tern

21:12

@Adeek eh?

Adeek

hey @arctictern so I want to ask a category question. It is very basic however. Consider the following information.

I did this excerise before looking but I was wondering shouldn't it be $f_1$ and $f_2$ switched ?

because we want a morphism $\sigma$ which sends $f_1$ to $f_2$ no ?

@arctictern ?

arctic tern

$\sigma:Z_1\to Z_2$ should be interpreted as a morphism from $f_2$ to $f_1$

the reason is so that composition makes sense

Adeek

21:28

I mean in the diagram we should have choosen another diagram where $f_2 : Z_1 \rightarrow A$ and $f_1 : Z_2 \rightarrow A$ no ?

Yoda

Hi,

Adeek

because we want to define a set $Hom_{C_A}(f_1,f_2)$ not $Hom_{C_A}(f_2,f_1)$ no ?

so we need $f_1$ to be our source not $f_2$ I am little bit confused.

arctic tern

or you could do that instead

Yoda

I am watching this video: https://www.youtube.com/watch?v=WZsJ6BtOh60 and I wonder if a savant who calculates really fast can
unconsciously break RSA algorithm

Adeek

does it matter ?

arctic tern

21:30

@Adeek it matters that we do things carefully

@Yoda no

Adeek

yeah so I think the book wasn't careful in his definition right ?

because we are defining $Hom_{C_A}(f_1,f_2)$ not the other direction.

Yoda

@arctictern ok

arctic tern

@Adeek well, it says "morphisms $f\to g$" but there is no $f$ and $g$ in the example, so it's left ambiguous a bit

Adeek

yeah

I think maybe $Hom_{C_A}(A,B)$ is isomorphic to $Hom_{C_A}(B,A)$

Forever Mozart

22:12

well I just shaved off my finger

peeling potatoes

so that was a good idea

meow-mix

22:29

conjugacy classes are just unique orbits, right?

Forever Mozart

test

saturatedexpo

23:07

@NaCl are you there?

NaCl

@saturatedexpo ye

saturatedexpo

can it make sense to assign a set a noninteger Number of Elements? (i am thinking of a paralelism to noninteger spaces)

NaCl

i.e. $f:\mathbb{Q}\to\mathbb{N}$?

saturatedexpo

More like: |A|=2.5

NaCl

wat

pls elaborate

saturatedexpo

23:11

the Anzahl of elements

like having 2 and a half children

it makes sense to assign not only $R^2$ or $R^3$, but also $R^{2.5}$ (but only for fractals i believe)

NaCl

I don't think that'd be useful in any sense

saturatedexpo

@NaCl what you think of the new iphone?

NaCl

idc about it

Apple is cancer

saturatedexpo

haha

that's right

i guess after 1 week of an apple laptop i have to go in asylum

No rightclick drives windows users crazy :D

NaCl

Microsoft is cancer as well

saturatedexpo

23:26

microsoft yes

opensource elitist? :p

NaCl

OpenSource is aids

Free Software is the way to go

Free as in Freedom

saturatedexpo

eh, sorry, i meant freesource if you want. paid opensource makes not much sense anyway

i tried elementary OS, and oh my god, that was my most disturbing 2 hours

NaCl

lol

distrochooser.de

saturatedexpo

the only reason i want linux would be Gummi (a tex editor)

so i guess i try some super small distro

NaCl

Just stay with what you like best, honestly

saturatedexpo

23:33

win xp haha

but i simply didnt try enough distros to have any opinion at all

mint was decent, but reminded me too much of windows 7

im aware that i could change something, but im not coding

so either it works how i like it, or it doesnt work for me :S

NaCl

and thats ok

saturatedexpo

the only thing i know for sure, windows 10 is like cancer on cancer

NaCl

superaids

saturatedexpo

it must be pretty hard to get a linux distro working for a small buiseness. But if you look at the prices for like Adobe, you could spend that money in training your personal.

NaCl

Linux adoption

Linux adoption refers to the adoption of Linux computer operating systems (OS) by households, nonprofit organizations, businesses, and governments. Many factors have resulted in the expanded use of Linux systems by traditional desktop users as well as operators of server systems, including the desire to minimize software costs, increase network security and support for open-source philosophical principles. In recent years several governments, at various levels, have enacted policies shifting state-owned computers to Linux from proprietary software regimes. In August 2010, Jeffrey Hammond, principal...

Forever Mozart

23:46

the desktops of linux have become closer to windows or mac

so now anyone could use linux

saturatedexpo

a big point for windows is, that games work on it. but that would implie that gaming is a big part of the users life, which in term would mean that all windows users suck irl? :s

NaCl

@saturatedexpo did you know that Microsoft developed DirectX just to make sure they monopolize the market for games in their favour?
Regardless of that, there are many great GNU/Linux games out there and things start to shift towards crossplatform now anyways (just look at SteamOS or Windows with Ubuntu-Bash-Shell)

saturatedexpo

well for me it's all fine, because the games i want to play can be played under wine (in some cases there does even exist a linux version)

NaCl