Mathematics

12:00 AM

@JacobBlack Now there are too many books. But if I were to choose one, it would be Educative JEE by KD Joshi. It was a high school math book with really great commentary.

user19161

@OrangeHarvester Really? Not any higher level math?

Orange Harvester

@JacobBlack Higher math, there are too many. I love Lang, Artin, Rudin, Kunze, Munkres, Ahlfors, Greene-Krantz etc etc. No single one to choose.

user19161

@OrangeHarvester Which Lang book?

Orange Harvester

@JacobBlack Linear Algebra, Undergraduate Algebra. I also had his "An Introduction to Linear Algebra" in high school, a small cute book on very basics of LA.

Spivak, Strang.

I also have these books by AMS, Problems in Mathematical Analysis (3 volumes) which I think is relaly cool.

Rather than think about books I like and which one is best, I have found that I am better off remembering which ones I did not like that much.

Peter Tamaroff

I have to retake my algebra studies.

Vacations have hit strong.

Along with Skyrim.

Darn.

user19161

12:06 AM

@PeterTamaroff Jacobson is very good.

Peter Tamaroff

@JacobBlack Yes. Few exercises though. Mariano said "there are better places to study from."

Let's forget he ended a sentence with a preposition and focus on the math, boys.

user19161

@PeterTamaroff It's OK to end in a prep, really.

skullpatrol

What is the most common preposition, boys?

user19161

Is it "of"?

skullpatrol

2nd^

close..nice try

robjohn

12:10 AM

@JacobBlack I have seen them, but I have not read them.

user19161

@robjohn It's good enough to smell and touch them.

skullpatrol

@robjohn Do you want to venture a guess?

2 mins ago, by skullpatrol

What is the most common preposition, boys?

user19161

@skullpatrol Is it "to"?

skullpatrol

Yes #1

Orange Harvester

I went to market to buy some fish to cook some dinner to satisfy my hunger to keep me health to keep me happy to make me enjoy my work to help me being productive to help me work harder to help me make more money to go to market to buy more fish.

robjohn

12:13 AM

@skullpatrol in or off would be my guesses

Orange Harvester

@PeterTamaroff That radio channel is good.

Peter Tamaroff

@OrangeHarvester Are you listening to "your love is an airplane ♪♫"?

robjohn

@JacobBlack to is a more common word, but I think it is more used because it is part of the infinitive

Orange Harvester

@PeterTamaroff yes.

Peter Tamaroff

I have to stop it now. I'll watch Game of Thrones.

Orange Harvester

12:16 AM

Okay. I will keep on listening.

skullpatrol

@robjohn Also "of" is related to "off."

robjohn

@skullpatrol "piss of"?

Charlie

@skullpatrol when i was 12, the teacher challenged us to say as fast as we could all preopisitions, it was fun!

skullpatrol

@Charlie And sounds like a great exercise...

Jonas Teuwen

@JacobBlack What?

user19161

12:21 AM

@JonasTeuwen I was writing what you would say if I start talking about the 9000 books I have touched.

Charlie

@skullpatrol yes:a, ante, após, até, com , contra,de, desde,em,entre, para, perante, por, sem, sob, sobre, trás :D

Jonas Teuwen

@JacobBlack Oh. Thanks!

amWhy

Hello all!

skullpatrol

hi

@Charlie :D

Peter Tamaroff

Has anyone read The Hobbit?

Jonas Teuwen

12:24 AM

I don't, but I bet @JacobBlack touched it.

skullpatrol

I'll take that bet.

user19161

@JonasTeuwen Nah, I only touch math books, and I try to touch people's hearts.

Charlie

@PeterTamaroff yes

Jonas Teuwen

@JacobBlack That's very good.

Charlie

@PeterTamaroff IT'S AWESOME!

Jonas Teuwen

12:25 AM

(the latter)

skullpatrol

@JonasTeuwen What did I win?

Jonas Teuwen

@skullpatrol Asskicking.

skullpatrol

@JonasTeuwen Gee thanks.

...remind me not to bet with you next time.

Jonas Teuwen

The pleasure is all mine.

Charlie

@skullpatrol I bet

skullpatrol

12:31 AM

@Charlie On what?

Charlie

@skullpatrol anything

Peter Tamaroff

@Charlie I wasn't that amazed!

Charlie

@PeterTamaroff WTF????

skullpatrol

@Charlie OK I'll ask you next time ...

Peter Tamaroff

@Charlie I mean it. I liked the first half of the book better

Charlie

12:33 AM

@PeterTamaroff C'mon...

Peter Tamaroff

A little bit maybe, 75%.

Charlie

@skullpatrol ;)

skullpatrol

@Charlie Hey you said last one ;-)

Charlie

@skullpatrol but you cameback

skullpatrol

@Charlie True :-\

Charlie

12:34 AM

@skullpatrol :D

skullpatrol

@Charlie Is there any difference in meaning between :-\ and :-/ ?

Charlie

@skullpatrol maybe, i dunno

what did you say, @skull ?

skullpatrol

@Charlie I was going to set up a convention for the meanings and decided to check Wikipedia first.

Charlie

@skullpatrol oh, ok

Orange Harvester

1:10 AM

@JonasTeuwen Are you there? There was a book that taught analysis using nets and filters that you mentioned. Which one was it? I would have to take a look at it.

Jonas Teuwen

There was one?

I know Aliprantis, but you will suffer your cherries off.

Orange Harvester

Aliprantis is this one?

By the way, I just found this by Beardon .

which is supposedly based on nets according to this answer on MO by Michael Greinecker.

Jonas Teuwen

No, Infinite dimensional analysis.

Hell yeah - Tchaikovsky.

Argon

Hi @Jacob Blue

user19161

@OrangeHarvester Beardon's book is very very very good.

Orange Harvester

1:22 AM

@JacobBlack Does it really mention nets and all? The sole reviewer says it does not.

user19161

@Argon lol

amWhy

I'm having a "blue"/"black" day, myself...

Argon

Ouch

user19161

@OrangeHarvester It uses "directed sets", that is what I know.

user19161

Yes, I have studied large parts of this book.

amWhy

1:23 AM

It's winter here...and it's raining/snowing, and has been dreary all day...I need sunshine...and warm weather!

user19161

@amWhy Where is the black?

Argon

@amWhy Hehe. We have lots and lots of snow here too

Orange Harvester

@JacobBlack okay. Hmm. Good I think. I will download and skim through it.

user19161

@Argon Canada is always colder as it is further north. I need less sun here lol.

Argon

@JacobBlack Come to U of T!

amWhy

1:24 AM

@JacobBlack I was thinking of Argon's hello to you "Blue"...so thought of your color, and added your last name, as it is too appropriate...

Orange Harvester

@JacobBlack You practically live on equator, you evergreen forest dweller. :P

user19161

Sometimes it gets to 34 deg here in the day.

Orange Harvester

@JacobBlack Well, I live in a place where it is 48C in day in summer and 4C at night in winter and it fucking rains at 4C and I love it. So, no one is allowed to whine about temperatures when I'm around.

user19161

@OrangeHarvester I read that people died from the heat.

Argon

@OrangeHarvester 4C is cold?

}:)

Orange Harvester

1:27 AM

@Argon When day temp goes to 34C, 4C is cold at night. (We don't have any heaters in our homes here btw.)

Charlie

@Argon ;)

amWhy

We get pretty darn hot in summer, and pretty darn cold in winter...

I love spring and fall here, though...

Argon

Fall is saddening

School starts. Gets colder. Leaves fall.

Orange Harvester

@JacobBlack Yes. you can get a stroke if you are not careful. We call it the "loo". It is very very dry and hot wind, which can induce unconsciousness (better word not found yet). So, we have to dress up like bedouin arabs with all the scarves and all.

user19161

@Argon After leaves fall, fall leaves.

Argon

1:28 AM

@JacobBlack hahaaa

amWhy

@Argon Yes, I agree, sort of bitter sweet: glorious temps, beautiful color...but the impending winter...

user19161

@Argon The great poet Jacob Blue.

Argon

@JacobBlack You are a poet and you didn't even realize that you were one of them.

Orange Harvester

I love all kinds of weather as long as I have decent environment to eat, work and sleep.

user19161

@Argon I am a banana.

Argon

1:29 AM

@JacobBlack Hahahaha

user19161

@argon I remember how you flagged that banana line once, hahahaha.

Charlie

@JacobBlack everyone flagged you once

Orange Harvester

@JacobBlack Banana does have some overtones.

@Charlie Not me.

Argon

@JacobBlack :) It can be flaggable at times

Charlie

there's always a first time

user19161

1:31 AM

Seriously, bananas are yummy.

Charlie

yes

Argon

Very true. But not as good as mangoes.

Charlie

hahaha

user19161

@Argon Now I must flag mangoes, hahahaha.

Charlie

I love all fruits

Argon

1:31 AM

@JacobBlack Do it.

:)

user19161

Anyway, the ex mod Robin Chapman seems to have vanished from the site.

Peter Tamaroff

OK, guys.

I have to choose.

Argon

Choose me!

Peter Tamaroff

This one or this other.

user19161

@Argon Oh noes!

Argon

1:37 AM

The latter has higher butter per cookie, it seems

Yum!

Peter Tamaroff

Off to the kitchen!!!

amWhy

@JacobBlack I could use your help, J! ;-)

Are you going to hunt for bananas? or mangoes?

Argon

Tally me banana

Orange Harvester

@amWhy Ooo, now that's interesting.

amWhy

@PeterTamaroff Can you bake some for me?

Argon

1:44 AM

@PeterTamaroff Which did you choose?

amWhy

I haven't eaten anything warm for...well, I can't really remember...Oh!!! I had coffee when my brother visited from Eau Claire (he brought it!)...that was, hmmm, a week after Christmas...

Orange Harvester

@amWhy whaaa? nothing warm? Do you eat everything frozen?

Argon

hahahahaah

amWhy

No...just room temperature, or from the 'fridge'...too lazy to cook...though I was a good cook, when I did cook...

Orange Harvester

@amWhy microwave? I just re-heat on the stove.

amWhy

1:50 AM

@OrangeHarvester No, I haven't used either for a while...I eat cereal out of the box, rely on dairy for protein, and nutrition/protein bars...and fruit...that's about it...I've got to perk up...just been too "down" to treat myself right :-(

Orange Harvester

@amWhy that is not good. :-(

amWhy

@OrangeHarvester No...I know...I've got to change that...

Orange Harvester

@amWhy I hope you do.

amWhy

@OrangeHarvester Yeah...just start with "baby steps"...once I build momentum, I usually get rolling...just sort of in a rut...

Raindrop

2:07 AM

@JacobBlack yes it is, and I sure am glad :)

user19161

@Raindrop Why do you prefer UCB to UCLA anyway?

user19161

I hope it is not because of the ranking.

user19161

Rankings don't mean much to me.

Peter Tamaroff

@Argon The second.

@amWhy There are plenty for all!

amWhy

@PeterTamaroff Yummmm! I can only dream how good they must taste!

Peter Tamaroff

2:19 AM

@amWhy I had no brown sugar, which is a downturn! =)

I mean: =(

amWhy

@PeterTamaroff Hmmm, never had chocolate chip cookies without brown sugar...do you have molasses?

user19161

@PeterTamaroff Well, I don't really eat snacks, you can save them for yourself.

Peter Tamaroff

@amWhy Nope. They are done though. They are the whitest cookies you'll know! =)

user19161

@PeterTamaroff Do you mean whitest?

Peter Tamaroff

@JacobBlack Yes.

anorton

2:35 AM

I think this is the longest answer I've ever posted on this site...

0

A: Projectile Motion - Finding initial velocity

This is probably a better fit for Physics.SE... I'm going to assume you are ignoring air resistance, as there's no Differential Equations tag. Part 1 We have from conservation of energy: $$\Delta K + \Delta U_g = 0$$ $$\frac{1}{2}m\left(v_f^2-v_0^2\right) + mg(y_f-y_0) = 0$$ Dividing by $m$ an...

Orange Harvester

Brown Sugar is also a grade of heroin.

Peter Tamaroff

@OrangeHarvester What?

Orange Harvester

2:51 AM

@PeterTamaroff Yeah. It is popular among drug users here, cheap too.

Peter Tamaroff

@OrangeHarvester Oh... it is a codename.

@amWhy OK, they are done

Orange Harvester

@PeterTamaroff Yes.

Peter Tamaroff

I had to make a second batch though. In a bigger oven.

Orange Harvester

Something interesting from the wikipedia:
"The cultivation of opium in Afghanistan reached its peak in 1999, when 350 square miles (910 km2) of poppies were sown. The following year the Taliban banned poppy cultivation, a move which cut production by 94 percent. By 2001 only 30 square miles (78 km2) of land were in use for growing opium poppies. A year later, after American and British troops had removed the Taliban and installed the interim government, the land under cultivation leapt back to 285 square miles (740 km2), with Afghanistan supplanting Burma to become the world's largest opium…

Peter Tamaroff

The first batch was too cramped and is a little too thick.

amWhy

2:53 AM

@PeterTamaroff I'm impressed by your industry!

and innovation!

Transcript for

$Mathematics$ Mathematics