The h Bar - 2014-01-19

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Waffle's Crazy Peanut

6:47 AM

Wow... Our room has been silent for a day (weird <-- everyone's busy on their vacation) :D

Waffle's Crazy Peanut

7:27 AM

Whooo... I've crossed 10k transcripts in our "bar" :P

7:55 AM

@Waffle'sCrazyPeanut nah, busy with world domination

Hello there :D

Waffle's Crazy Peanut

@mikhailcazi Hey! ;-)

Hi :D

Waffle's Crazy Peanut

@Nick "Hey!" to you too :P

@Waffle's: I'm not a barn animal, I don't require your hay!

Waffle's Crazy Peanut

8:07 AM

@Nick lol :D

user image

Actually, it's pretty comfy

So, what do we basically do in chat?

Waffle's Crazy Peanut

@mikhailcazi chat (???) o_O

@Waffle'sCrazyPeanut: really?

Waffle's Crazy Peanut

@Nick okay then, you say what we do... sing/dance around? riot? murder? :P

8:14 AM

@Waffle'sCrazyPeanut: Why not chat? Isn't that the purpose of this place? You have some crazy ideas about chatrooms though.

Waffle's Crazy Peanut

@Nick I said "chat" - because that's what we do... :D

user image

@Waffle'sCrazyPeanut: But that's what I eat

Waffle's Crazy Peanut

@Nick Duh, it's chat my dear master :)

Now, I'm hungry.

Waffle's Crazy Peanut

I don't understand why "chat" throws "cats"... :D

8:19 AM

@Waffle'sCrazyPeanut: Why the heck cats?

Oh!

CHild Cats

Chats

8:35 AM

Now I see. xD

8:49 AM

How do I do $ \Huge{\frac{d}{dx} \lbrace \frac{1}{1-x} \rbrace }$?

@Waffle'sCrazyPeanut: You're good with math, right?

Waffle's Crazy Peanut

@Nick Nah, I suck :P

@Nick That's just ordinary differentiation, right?

yup

Waffle's Crazy Peanut

you take the inverse and apply $\frac{d}{dx}(1-x)^{-1}$

@Nick Forgot differentiation? :P

Um, $-1(1-x)^{-2}$

Waffle's Crazy Peanut

yeah...

8:55 AM

O_O Um that's like $ \Huge - \frac{1}{(1-x)^2}$

Waffle's Crazy Peanut

yeah, what's wrong with that? o_O

It should have been $ \Huge \frac{1}{(x-1)^2}$

Waffle's Crazy Peanut

Why so?

wolframalpha.com/input/?i=d%2Fdx+1%2F%281-x%29

@Waffle'sCrazyPeanut: Yup, I officially suck at calculus.

Waffle's Crazy Peanut

@Nick Mathematica gives me $\Large \frac{1}{(1-x)^2}$

9:02 AM

XD

That's exactly what wolfram gives me

When I tried differentiating, I get that negative. Pesky negative.

Waffle's Crazy Peanut

user image

@Nick huh?

$\frac{d}{dx} \frac{1}(1-x} = d/dx (1-x)^{-1} = -1(1-x)^{-2}$

Waffle's Crazy Peanut

Yeah, but Wolfram & Mathematica contradicts with our results :P

No, it doesn't

(1-x)^2 = (x-1)^2

Waffle's Crazy Peanut

@Nick yeah... yeah... :D

@Nick Both are wrong... mathcentral.uregina.ca/QQ/database/QQ.09.07/h/michelle1.html

9:09 AM

Actually, that's different from my question

wolframalpha.com/input/?i=d%2Fdx+1%2F%28x-1%29

(1 -x) is not (x - 1) XD

Waffle's Crazy Peanut

@Nick DAMN!!!! >_<

@Nick: Anyways, the thing is wrong... o_O

XD Someone just told me where I went wrong!

in Mathematics, 1 min ago, by Balarka Sen

@Nick : You forgot to use the chain rule. $\frac{d}{dx} ( 1 - x)^{-1} = \left [\frac{d}{d(1-x)} (1-x)^{-1} \right ]\cdot \left [\frac{d}{dx} (1 - x) \right ]$

This kid is just 14, btw.

Waffle's Crazy Peanut

@Nick What? I've studied it all wrong... -_-

@Waffle'sCrazyPeanut: Nah, mugging up the formulas often make us forget the chain rule.

It happens.

Waffle's Crazy Peanut

@Nick heh, yeah... I can see that :)

9:19 AM

@Waffle'sCrazyPeanut: so, what up with you? Doing anything interesting than relearning calc?

Waffle's Crazy Peanut

@Nick Nah, I haven't ever learned math... Maybe, I'll do that this year :D

All I know are some 4 or 5 formulas (in calculus) :P

O-o Never learnt math? What exactly do you do?

Waffle's Crazy Peanut

@Nick I'm an engineering undergrad...

... Our planet is doomed.

Nah, I'm just kidding. You have all the time in the world.

Waffle's Crazy Peanut

@Nick yeah... I know :D

9:22 AM

Make sure you use it wisely.

Waffle's Crazy Peanut

I've been constraining myself to "not memorize" (like what I did in my high school) during my colg. lifetime. Isn't that wise enough? :P

mhh.. memorize the necessary.

As much as intuition is great, I'm pretty sure no one intuitively knows 8*7 = 56 without memorizing it.

Waffle's Crazy Peanut

yeah, I figured that out when I got into Phys.SE :D

Yeah, there are so many things to remember.

1 Amstrong = $10^{-10}$

XD

just random stuff.

1 hour later…

10:48 AM

Angstrom? ;-)

Just won a hackathon :

Waffle's Crazy Peanut

11:16 AM

@DavidZ Yeah :P

@ManishEarth a hacka what? o_O

@ManishEarth: Was that conducted/organized by your colg.? Or, you go somewhere else?

12:17 PM

@Waffle'sCrazyPeanut code.fun.do. Organized by Microsoft, but they do it in partnership with the college so they have some help from here

Hackathon=shortish period of time (24-48hr) where you have to make an application or something similar

2 hours later…

Waffle's Crazy Peanut

1:50 PM

@ManishEarth Woah... That's nice. Is that teamwork? or standalone? :D

2:34 PM

team

ShuklaSannidhya

@ManishEarth What was it about? What did you make?

A sort of classroom notebook think that had rather fluid support for math. And scribbling

ShuklaSannidhya

GUI?

yes, also uses a better form of manishearth.github.io/MathToTex/MathToTeX.html

ShuklaSannidhya

Native app or web based?

2:40 PM

native?

metro apps can be written in html/js

But no web connection needed here

ShuklaSannidhya

oh... I meant- was it browser based app or something which runs on a lower level... know what I mean...?

@ShuklaSannidhya Sort of browser based. Runs on the Metro framework, so no browser in sight, but there is an IE layer behind it

Waffle's Crazy Peanut

@ManishEarth: I'm just a few more steps away from that video :D

(But, sadly I was able to finish only one - the basic)

ShuklaSannidhya

@ManishEarth I made an edit here...

Not sure what OP is asking...

But I'm sure he gave wrong data...

5 hours later…

Glen The Udderboat

7:38 PM

What is the antonym of 'superdeterminism'?

2

Q: Will superdeterminism, if proven, make science useless?

Superdeterminism states that no experiment we perform has complete freedom, so no matter what you are trying to learn about how things work out in nature, nature will tell you what it wants to tell and may or may not tell the truth as per its own decision as it will decide what experiments you pe...

philosophy-of-science quantum-physics determinism

Not a clue

3 hours later…

Arjun Nagarajan

10:34 PM

Hi

?What is Hookes Law

and What is impendance matching

:D

1 hour later…

11:54 PM

any body there, need help

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