one of my colleague sent email to conway and he replied

@KarimMansour Which Conway

J. H. Conway?

J. H. Conway

yes

Hello @robjohn.

I much prefer JB Conway.

@TedShifrin Seems that Mike is ignoring me too.

I think he just doesn't care for messages

I think if X ignores Y, Y should get a notification.

well, you told us some days ago that whoever wants to ignore can press the buttons.

he's tired of all the non-math stuff in here ...

@BalarkaSen Of course, but it would be good if they said so.

btw, @Jasper, once again we disagree. I do not like JB Conway's complex variables text. It's a poor copy of Ahlfors.

@TedShifrin LOL.

I don't understand why looping helps us in polard rho algorithm

the amount of homework question in MSE is a sign that the fate of MSE would be similar to the math forums all over the internet.

what is their fate, @Balarka?

I wonder how many people have me on ignore...

all of the ones i know are either inactive or has been inactive for years, otherwise spammed to death with no proper moderation system.

well, it's a shame, @Balarka, because there are lots of valuable things about this place other than as a "copy my homework" site.

yep, it'd not be nice to see it sharing the same fate of those forums.

you know @TedShifrin I was dreaming yesterday that I took a math course called super course that covered pretty much all of the courses that I took as undergrad so far in 3 month

haha

how much did you retain, @Karim?

imagine if there is a course in undergrad curriculum that covered all math

I don't remember what I learned but I remember it covering everything lol

pretty much impossible

have any of you ever seen a dream where you actually solve a problem you have been thinking about for some days?

yeah

I sometimes have algebraically weird intense dream that is frustrating I keep solving something but it is unsovable.

i dunno, i think i did. but whether i solved it before going to sleep or did it in my dream, i don't recall.

unsolvable.

but I hate those dreams though its frustrating once I wake up its as if I was working out or something

I have made some plans to do some things next month. The fate of my life depends heavily on them, so I hope I succeed.

@KarimMansour That sounds like me trying to solve my mental problems.

@TedShifrin how many classes a person should take per semester ?

@WillHunting hey there. How is your day today?

in order to fully understand everything deeply.

hi @robjohn

depends on the student and the courses, @Karim ... but I usually advise my advisees to take only two maths ... not more

@robjohn Quite bad. But thanks for asking.

@TedShifrin Hey Ted! It may rain later this week

wow, @robjohn ... we're building arks here.

Maybe we can be ark-connected? :D

yeah this semester I took 5 math courses but I studied aloot

that's totally absurd, @Karim.

yes

My best students have almost died doing three.

@TedShifrin How do you light your ark? (an ark-light?)

@Kaj hey!

yeah I died this semester @TedShifrin sleeping per day 6 hr lol

Hey there @BalarkaSen

hi mr @Kaj

@TedShifrin, etc

we prefer the dark, @robjohn

@Karim: and I'll bet you retain almost nothing from the courses.

I have been living in darkness for too long.

To actually learn courses, one has to put in lots more effort besides just getting problem sets done.

Are you covering much more than we did in the last week of geometry @TedShifrin? We missed like 3 classes due to snow.

what mean OP ?

But remember we made up 2 with night exams, @Kaj

yeah I agree @TedShifrin

@Lucas original poster = asker

thanks, and i.e. ?

I'm probably going to have Thursday be mostly review for the final, @Kaj ... too much of the class is doing too poorly.

@Lucas id est = that is, in Latin

Oh yes, you're right. I think it'd be cool seeing everything a second time with differential forms.

just wanted to let you know, @Ted, your linear algebra lectures are awesome.

is it differential geometry @TedShifrin ?

I can't do that, @Kaj ... only a small fraction of the students know what those are.

:D

I second @BalarkaSen they are awesome I watched them this semester

@lucas, you need to learn to google.

yes, @Karim, teaching differential geometry ... doing hyperbolic geometry now.

@lucas you also need to learn to check a dictionary.

I don't know where I can find them

thanks, @Balarka, @Karim ... I don't think of them as anything special.

LOL ... what is a dictionary?

Oh no, I wasn't implying that you'd be able to @Ted.

This semester a few students (Daniel, Eric, Clay) have thought about the forms stuff, @Kaj.

@TedShifrin You need to return to elementary school.

Eric? Do I know him? @TedShifrin

@WillHunting, you're good at graphics?

@Jasper: Just as there are calculators now in elementary school, there are no dictionaries.

@TedShifrin LOL. This world is finished.

@Kaj: Perkerson ... yeah, surely you know him.

@Lucas No, why do you ask me?

Oh yes indeed. My mind went straight to Lybrand though

he avoided me, @Kaj :P Four classes with me was enough. Five would have been too much ... plus, I encouraged him to take it when he did.

because I need some help... and I want to talk on private

@Lucas I see. But what made you think I am good in graphics?

Speaking of which, do you know where Dr. Scott ended up @TedShifrin ? His post-doc ended last year.

Last I heard, @Kaj, he ended up nowhere ...

@KajHansen He is on post post doc then.

I just asked...

have no ideea

does your book cover the necessary lin alg to study mult calc, @Ted?

@Lucas OK. Are you in college? Hi by the way.

Hi, yes, I'm in college

yes, @Balarka, totally.

That's the point of the course ... it's all integrated together.

cool beans.

@Lucas What kind of help do you need in graphics?

@BalarkaSen As cool as me.

hmmm, can talk on private? I don't know how to say, I will show on private the graph and after I will say

@Lucas There are no private rooms here. The whole world can see.

@Lucas There is no need to ask in private, just ask on the main site to get the answer.

okay, I'll do that

@TedShifrin Still here?

if you are given a function $x^3+1$ and then they said that theres a tangent on that function, and its slope is 3. how can you find the point of the tangent?

@BenBeri Differentiate the function to find the derivative.

@BenBeri: Yes. Just differentiate the function and set it equal to 3

thanks

Hi @Henrik you seem to be a very helpful guy.

you are too

I am just an insane guy. =)

@WillHunting: Thanks, but I'm not too pleased with this interface - so I doubt I'll stay (give me an IRC channel)

@Henrik I think the interface is a poor reason to stay or not stay.

@robjohn Goodnight, I will see you in my dreams.

@WillHunting See you tomorrow.

i want to udnerstand this algebra more.. when you have $x^2 = 3$ I need to get rid of the squared x, what I can do is square root both sides, but that doesn't get me a correct answer?

@BenBeri It is an incomplete answer. You could have $x=\sqrt3$ or $x=-\sqrt3$.

hmm

the answer for $3x^2 = 3$ is -1 and 1, but when i square root both sides, the answer is $x = -\frac{1}{\sqrt(3)}$

@BenBeri applying the square root function gives $|x|=1$

For $3x^2 = 3$, you should divide both sides by $3$ first, to get $x^2 = 1$. Then there are only two $x$-values that you can square to get $1$, and they are $x = \pm 1$.

ah

so $f(x) = x^3 + 1$, $f(x)' = 3x^2$, $3x^2 = 3 => \frac{3x}{3} = \frac{3}{3} => x = 1$, so the tangent meets at when X = 1 right?

I haven't been on MSE too long, but are these types terribly uncommon? It's not exactly unsolicited, but their sole purpose is clearly promotion of their website.

@pjs36 "As this post is 3 years old, probably you must have already given your exam" lmao

@pjs36, I rarely see that sort of thing here

I just saw a few posts get bumped with a similar message, that's all! I found it pretty amusing.

Complex mid sem exam in 20 min

Pretty keen

@Incurrence Do you have any homework problems you couldn't solve from over 3 years ago

@ᴇʏᴇs No

@ᴇʏᴇs 3 years ago at this time I was working 70+ hours a week and had only done highschool

@Incurrence Nice, you must be pretty smart

@ᴇʏᴇs What why haha?

@ᴇʏᴇs Actually I don't remember from physics the alpha, beta, gamma wave stuff

@Incurrence I still have some problems from grade school I can't solve

@ᴇʏᴇs What problems?

What is grade school?

Before american middle school?

You have 1-6 grade school, 7-9 middle school, 10-12 highschool?[where numbers are grades]

Actually I must go to my exam now. Bye

@Incurrence Mostly logic stuff, some geometry stuff

Let $y=Mx$ where $M$ is a matrix, not necessarily symmetric. I just calculated $\partial/\partial y=(M^{-1})^T\partial/\partial x$...but I've never noticed the transpose before. Can someone please tell me if that's correct?

Hi :)

@TedShifrin! Sorry I missed you. :)

I wonder how much one can go when starting from a simple idea. I guess the possibilities are very large, maybe countless, one only needs a bit of imagination.

I'm out for now.