#book-recommendations

1 messages · Page 182 of 1

mortal iris
#

Tbf that's a failure of the educators and schools and less so the textbooks. Like NCERT is not that bad lol. The intuition is quite decently explained. And graphical problems to do so are quite common too, but the textbook and the boards recommending them tell different stories.

high stone
#

and you end up producing sparkless highschool graduates

hasty flare
#

We're forced to finish learning integration ahead a full year for physics albeit it was preliminary just the basics, but no one in their right mind would know how to take a differential length and setup integrals and perform the integration, if it's not taught rigorously in class.

mortal iris
#

I think this discussion from here on out is better moved to #math-pedagogy or some other appropriate channel. This has veered far from book recs.

whole karma
#

hey, do you mind if i ask you, where and from what you have learned proofs and logic in mathematics ?

mortal iris
high stone
#

what’s pre-uni math?

whole karma
high stone
#

well technically that’d include high school too

mortal iris
high stone
#

hat counts as uni?

mortal iris
#

See #info before jumping into channels @whole karma, @hasty flare and @high stone.

high stone
#

I forgot I was a PG…

grave egret
#

thoughts on jänich his books?

high stone
#

opinions on

  • “Advanced Engineering Mathematics” by Dennis G Zill
  • “Advanced Engineering Mathematics” by Erwin Kreyszig
mortal iris
mortal iris
grave egret
# mortal iris Which ones?

topology and function theory.

I have worked through the first part of munkres and didn't enjoy the book at all (I want to do some point set topology again because I forgot a lot/some of it) and I do also have to learn complex analysis some time in the future.

high stone
grave egret
#

I can speak german which allows me to read the original versions (I think they were published in german) and I have noticed that they get recommened often.

mortal iris
mortal iris
grave egret
# mortal iris Can't say much about the German version. I have seen those two books. They are g...

Could you explain why munkres is viewed as superior? I used it to study (point set) topology because it was the only book people really recommened and to be honest I never really got why. I also looked through a few other books like lee or bredon and both of these seem to cover all the necessary point set topology in their first one or two chapters. I assume that these two books do it more as something like a revision but after going through munkres, I don't really feel like that that would have lead to a worse experience.

#

But on the other hand I didn't really see (point set) topology as an end in itself (i dont think anyone does?) which might be the reason for my opinion (which may be/probably is uninformed?).

mortal iris
#

Maybe you can try an inquiry based book like Starbird's if you're revisiting, which covers both PSet and Alg Top.

molten gulch
#

Also, Lee, especially, is intended as "enough point set for diff top and diff geo", as it states (in different wording) in the preface. The first 6(?) chapters quickly cover point set and the rest cover some algebraic topology. It isn't bad as a book for topology if it covers all you need, but that depends on what you want to do with topology. Munkres is good because it covers a lot of topics in a lot of detail

mortal iris
molten gulch
grave egret
molten gulch
#

Yeah I think any topo text should have enough to get into eisenbud

mortal iris
molten gulch
#

There you're dealing with the Zariski topology, right?

grave egret
#

yeah I should probably also learn some more topology and geometry to get a better understanding of lie algebras

night prism
#

Is ‘higher algebra’ still studied in courses? I’ve been reading through some (pretty old) books on it and I felt like it’s so beautiful. Maybe it’s called something else now?

night prism
#

Thanks!

mortal iris
grave egret
#

in october

#

but these were the first results that came up when looking for higher algebra

mortal iris
#

Geez. Insane number of coincidences today lol.

#

Found two ppl from two of the unis I went to opencry

grave egret
#

You went to uni Bonn?

#

or MPI?

mortal iris
#

Tho did a number of math courses at Bonn

#

Side questing max

grave egret
#

How is Physics in Bonn? I haven't heard anything about that so far. I only know that their econ program is also pretty strong

grave egret
mortal iris
#

Perhaps we should switch to DMs

#

Off topic this is.

grave egret
#

Yes sure

mellow wren
#

I applied currently and I'm anxiously waiting for the decision

oblique hatch
mellow wren
#

So I said I'll apply in the later cycle alongside all the other unis I wanna apply to

oblique hatch
#

mishu see

desert oriole
mellow wren
#

risk any issues later on i mean

desert oriole
#

yeah makes sense

#

good luck on your application

fluid moon
#

best introductory books for theoretical computer science?

mortal iris
#

It's a bit of a challenge to read for a complete beginner though, but worth going through right at the start.

molten gulch
#

Sipser by far, very nice to read, a good amount of difficult exercises, quite fun

#

I liked reading it

frozen perch
#

Love Sipser. Kind of an interesting grab bag of topics, but really good foundational stuff

ember lark
#

any good linalg recommendations

mortal iris
molten gulch
ember lark
#

i cant even false that because it's true (in reply to tcc)

mortal iris
remote sparrow
#

before you say anything @mortal iris that's the same guy that recommends ladr all the time

ember lark
#

let me check halmos actually

#

ive heard of it

mortal iris
ember lark
#

wait is it just a problem book

ember lark
molten gulch
#

FIS lover vs LADR lover, who wins

#

(FIS, obviously, Ryan's known as the FIS shill for a reason)

mortal iris
mortal iris
mortal iris
ember lark
#

i forgot

mortal iris
ember lark
#

am aware

molten gulch
mortal iris
#

Vixra papers are quite fun to read sometimes tho. Within a vast majority of brain rot you occasionally find some interesting stuff, even if very sus.

cunning cobalt
#

Some good books for Integral Calculus?

native cradle
#

Excllent for theory no doubt

night prism
#

Finite dimensional vector spaces halmos?

native cradle
#

That's the one I know of

night prism
#

Honestly might be a rough first go

#

Although I am pretty stupid

green aurora
#

90 percent of this channel seems to be linear algebra book talk

marble solar
green aurora
#

I began with arithmetic but I guess the starting line is different for everyone....

vital bane
native cradle
sick river
#

pre-university books for algebra II, trigonometry, geometry and calculus

#

basically everything pre-university level but at senior high school level pls 🙏

mellow topaz
native cradle
#

for trig I remmeber a russian book

#

or was it brit

#

sl loney

wide patrol
#

ygs have reccs for learning addition with numbers above 20?

arctic yew
wide patrol
#

they go too fast

arctic yew
wide patrol
#

genius

cunning elk
wide patrol
#

i dont have more than 20 fingers sadly

wide patrol
#

i shall try it and get back to you

arctic yew
#

,calc 2^20

hasty eagleBOT
#

Result:

1.048576e+6
rough helm
#

any book recomendation before university and after 12th class for physics and maths?

daring wolf
#

my ass be like recommending Lurie's higher algebra

short fable
visual delta
#

Actually it does say it on Amazon but at the end of the description.

native cradle
#

I know I was reccomended Micheal O seceroid for metric spaces earlier.

However my class will appaently use
Introduction to Topology and Modern Analysis by G F Simmons

how different are they in terms of problems

#

might just be because I'm still in chapter 1, but simmons feels too easy

last wolf
#

If someone replies with a book name to this message I will read it, except if already have.

ancient ridge
last wolf
arctic yew
arctic yew
last wolf
#

Horrible

native cradle
short fable
ancient ridge
native cradle
last wolf
native cradle
#

JSTOR too if you have access

native cradle
#

before you read this, will do you some good to read the social contract by rousseau and a bit of bio-power and biopolitics by foucault

native cradle
last wolf
native cradle
last wolf
native cradle
#

wow

#

have fun, I've only read ~1.5 chapters, but it's lovely

mortal iris
# native cradle That's the one I know of

I'm not referring to his old one on Finite Dim Vector Spaces btw. He has a Linear Algebra Problem Book which is a sequel to that book of sorts and it is excellent, albeit a grind.

mortal iris
mortal iris
mortal iris
mortal iris
mortal iris
native cradle
#

hmm, idk

#

Thanks! I'll pick up seceroid then

ancient ridge
native cradle
ancient ridge
#

what's the syllabus?

native cradle
#

the entire course is about metric spaces

#

lemme try to get the old syllabus

mortal iris
native cradle
ancient ridge
native cradle
#

on a sidenote, it's scary how easy using paypal is 😭

just one click and done

native cradle
ancient ridge
#

That's what my school does in 2nd real analysis course after chp 1-7 of baby rudin from the 1st real analysis course

mortal iris
#

Which the aforementioned book kinda is.

native cradle
#

I'll ask the instructor for the syllabus then I guess

#

I had asked a month ago, but guess that was too early? opencry

#

which tbf it is given that classes only start in august

silk grove
#

how good is the treatment of cat theo and basic homological algebra in jacobson basic alg vol 2

short fable
last wolf
native cradle
last wolf
native cradle
#

how did you read it that fast though

#

like when I read it I had to look up stuff related to theories of power and all that

last wolf
native cradle
#

oh fair then

short fable
last wolf
short fable
#

Truly exciting work

last wolf
short fable
last wolf
#

Spending a 1/15 of ones life on a plane

short fable
short fable
last wolf
last wolf
short fable
#

I think you should spend more time on good books

native cradle
last wolf
last wolf
#

Top 80

native cradle
#

If you liked it, I have a similar suggestion

short fable
last wolf
native cradle
mortal iris
last wolf
#

Information and perspectives are valuable no matter the situation

native cradle
#

anthropology in the margins of the state by Veena das is pretty nice too

last wolf
last wolf
#

In German

mortal iris
last wolf
native cradle
mortal iris
mortal iris
native cradle
last wolf
native cradle
#

a friend sent this, any review on it

mortal iris
last wolf
mortal iris
last wolf
mortal iris
native cradle
#

I thought it was a real clip opencry

last wolf
mortal iris
#

I'm guessing this is how you read for a living as well

mortal iris
native cradle
#

reference

#

It all began on the day of my actual birth.
Both my parents failed to show up

mortal iris
#

Aye anyways, at the risk of this going into #chill territory let us stop opencry

molten gulch
mortal iris
#

Wouldn't you rather let yourself marinate in the thought while reading?

molten gulch
#

<@&268886789983436800>

night prism
native cradle
#

ooh, fun

native cradle
night prism
#

It approaches it from a fairly advanced perspective

#

Also, yes, no exercises

native cradle
night prism
native cradle
mortal iris
# native cradle I'm not sure atp. I'll look the course description soon and lyk I guess?

If it's for the undergrad ODE course where you're at (230?), I recall the course being underwhelming and mostly redundant with Calc 2. That might change if someone competent were taking the course in your go around. Iirc the only new things you'll see there otherwise are some fairly standard numerical methods and a little bit of Fourier and Laplace transforms in a less than precise manner.

native cradle
#

It's samit if you know who that is

#

Oh well, i could self study it properly I guess

mortal iris
# native cradle It's samit if you know who that is

Yeah I do. No point fishing for a good book unless you plan on studying the subject for your own satisfaction. It's a very weird course they have over there. This and the PDE one if it's still being offered.

native cradle
native cradle
mortal iris
# native cradle Well, looks very applied

More than two thirds of this is supposed to be covered in Calc 2 already iirc unless they changed that for yall. The first two main references are rigorous though, but not the last one which is what Samit usually follows afaik.

native cradle
#

we didn't do ODEs at all ( or well beyond HS ODEs) unelss I;m forgetting something

fickle granite
mortal iris
native cradle
#

but got it, thanks for the refs

mortal iris
#

Our Calc 2 course contained a lot of ODE theory.

sacred thicket
mortal iris
#

I'm a reading time traveller sotrue

last wolf
#

That was tommorow

mortal iris
night prism
#

As in it’d be helpful to know analysis beforehand

whole karma
#

<@&268886789983436800>
Mr beast here too

ember lark
#

death of moderators

arctic yew
ember lark
#

make larp larp mod so he can delete mr beasts

native cradle
#

(related to books)

HOW DOES A PUBLISHING HOUSE MAKE THIS MUCH

arctic yew
native cradle
night prism
#

Also, they have relatively little overhead. People submit their papers (free), they’re refereed (free), and they sell them back to us

cyan dawn
odd cargo
mortal iris
native cradle
#

thanks

normal crystal
mortal iris
normal crystal
#

I didn't check all the links but the few I tried worked on wayback
then I would have to play rm files somehowblobsweat
hopefully they just work on VLC

trail void
daring wolf
#

<@&268886789983436800>

safe gorge
#

what r some of ur fav novels

bright epoch
mortal iris
# safe gorge what r some of ur fav novels

Light Novel: Re:Zero by Tappei Nagatsuki.
Standalone Fiction: David Copperfield by Charles Dickens.
Mythology Series: The Kane Chronicles by Rick Riordan.
Mythology Epics: Mahabharata by Ved Vyasa.
High Fantasy: Tolkien's Legendarium.
Biography: The Strangest Man: The Hidden Life of Paul Dirac by Graham Farmello.

safe gorge
#

tolkien is good

safe gorge
bright epoch
safe gorge
mortal iris
safe gorge
knotty lava
safe gorge
dreamy finch
#

Do you guys know of any good online books to study calculus?

mortal iris
safe gorge
#

well thank u for editing ur message bc the original statement was quite rude

mortal iris
mortal iris
safe gorge
mortal iris
safe gorge
safe gorge
mortal iris
#

Like I said in another thread, if you got a problem, take it up in DM. Clearly I'm not the one with the issues.

golden salmon
#

Moving on...

#

I like a Hero of Our Time and other similar russiaSlop

safe gorge
#

like i said before i do not have an issue, but u r passive aggressive and edit ur rude original messages

golden salmon
#

Pechorin is an innovator in being a fuckass

safe gorge
#

do u have any good english lit novels

mortal iris
golden salmon
#

My taste is objectively bad but I like wuthering Heights and Odyssey

safe gorge
golden salmon
#

Fave translation is Rieu but I like all the ones I've read tbh

safe gorge
#

@golden salmon no shakespeare?

golden salmon
#

Only started reading him recently actually. I liked macbeth but it was waaay above my level

knotty lava
#

hamlet

safe gorge
golden salmon
#

I got there in the end with a dictionary on hand

safe gorge
#

after awhile, it gets pretty easy reading his writing style in my opinion

golden salmon
#

looking forward to building that proficiency

safe gorge
#

u have time, he has many plays

dreamy finch
#

im tryna be like u guys

golden salmon
#

Oh, the one 'hard' book I can say I read and understand is canterbury tales in middle english

#

that was fun

molten gulch
molten gulch
golden salmon
#

My best guess is that there are important gaps in my literature education that I'm plugging as I go, and there's a very big one around how shakespeare forms language

golden salmon
molten gulch
#

I also quite like Tolstoy's War and Peace, though it is....long

golden salmon
#

Reading that presently!

#

Love it

mortal iris
molten gulch
#

I also have a copy of anna karenina lying around that my dad had gotten me several years ago I still need to read

golden salmon
#

solid gift idea

molten gulch
#

though I think that Great Expectations is my favourite of his works, mainly because it's the one I remember the best

#

I also quite enjoyed Jules Verne's Around the World in 80 days and Journey to the Centre of the Earth

safe gorge
#

i love how verne was ahead of his time on sea exploration

fickle granite
mellow topaz
#

It has some flaws but it has a great message

safe gorge
shell sparrow
#

Guys has anyone studied Theory of SPECIAL relativity?

dusk hemlock
#

<@&268886789983436800>

shell sparrow
# mortal iris Yes, why?

Oh, I wanted to discuss , and along with that, what else are you aware of (like Schrödinger wave equation, or quantum gravity)

odd cargo
#

kai cenat or mr beast

dusk hemlock
#

mr beast

odd cargo
dusk hemlock
#

pictures

mystic orbit
#

Was it nuked already?

#

This mod team is filled with so many fucking sweats ded

mortal iris
shell sparrow
mortal iris
molten gulch
mortal iris
#

I'm confused lol

tulip aspen
#

Welp need a recommendation on probab and stats

wild grove
#

Is trying analysis Terry tao (like following it) a great choice for single variable calc and further study

brave pebble
#

trolling

mortal iris
dusk hemlock
#

don't do it here though

brave pebble
#

my bad

dusk hemlock
#

it's fine lol

#

yeah this server's channels are confusing

mortal iris
dusk hemlock
#

they are for newcomers imo

brave pebble
#

ya not that confusing tbh

dusk hemlock
#

i mean to the extent that all new servers' channels are confusing

#

this one isn't particularly bad

mortal iris
dusk hemlock
mortal iris
dusk hemlock
#

well that may be the case for you

mortal iris
#

Everything else is pretty cut and dry.

dusk hemlock
#

but different people are good at different things

mortal iris
dusk hemlock
#

yes i am

dusk hemlock
#

learning your way around a server may be easy for you but hard for others

mortal iris
#

Rigorous server usage opencry

normal crystal
#

speedy, are you telling me you can find new roles that nobody knew about but still get confused by channelscat_thonk

dusk hemlock
#

smh i'm still chief rolevestigator of this mathcord

odd cargo
#

never read it so i cant say if its a good or bad first choice either

wild grove
#

Then what should I try

#

Which has rigour

mortal iris
mortal iris
# wild grove Yeah!

Usually it is recommended to start off with something more applied and intuitive rather than rigorous for some rather convincing reasons. If that's something you don't want, then consider starting with something that's relatively balanced like Zorich's Mathematical Analysis instead, or alternatively something more limited but pedagogically sound like Pete Clark's Honors Calculus notes. And it would be good do supplement yourself with a book on Proofs like Hammack's and do Linear Algebra (LADW is good) on the side before going to Multivariable Calc.

wild grove
wild grove
desert oriole
#

you can do a lot of algebra without even knowing what a sequence is

mortal iris
desert oriole
#

dont you need matrices to define derivatives anyways in multivar

wild grove
#

Do you think I should try zorich's analysis as the first choice

mortal iris
mortal iris
wild grove
#

Umm actually no

mortal iris
# wild grove Umm actually no

Okay. See if you are completely new to this whole thing with doing math rigorously, Zorich may give you a tough time at the start despite being as detailed and heavily worked out as it is. If you're okay with some initial growing pains, go for it. Otherwise, start with a more traditional text like Piskunov for a first course.

One good thing that I like is that Zorich doesn't shy away from actual applications, mainly in physics while still maintaining a very high level of rigor. It's also probably the most comprehensive book on the subject that doesn't go into Measure Theory if you include Volume 2.

wild grove
#

Like it has pains similar to Olympiad/competition math? If yes would zorich be a nice choice

#

?

mortal iris
# wild grove Like it has pains similar to Olympiad/competition math? If yes would zorich be ...

Nah. Competition math is of a different style altogether. It will be some, but not much pain (testament to good pedagogy of Zorich) if you're not used to or have not seen much rigorous mathematics. Which is why I suggested supplementing with the Book of Proof and LADW so that you get a good eye in as proofs in Analysis are often much harder for a beginner than proofs in elementary set theory and linear algebra.

wild grove
#

In parallel?

mortal iris
# wild grove So can I try zorich and LADW?

Sure you can, but I recommend starting with Book of Proof first. But if you've already seen enough of things like sets, relations and functions and know a thing or two about writing proofs and logic you can skip it entirely and learn as you go.

viral dagger
#

can some please suggest me a good combinatorics (permutations and combinations) book and calculus book under 5 USD (i'm a indian high school student preparing for entrance exams and I have interest in these particular portion of mathematics but can't spend too much)

mortal iris
#

This is a great open access combinatorics book if you're willing to use an online version. You should also be able to obtain both of Piskunov's Calculus volumes in around ₹500 via Amazon. If not, you can print out the older internet archive versions on mirtitles.org.

viral dagger
signal current
#

Any book recommendations for algebra 2 and pre calc?

mortal iris
mortal iris
viral dagger
mortal iris
still kelp
#

hello, i want to self study math from free sources ideally pdfs for printouts, is Precalculus, Mathematics for Calculus 7th ed. good for beginners?

mortal iris
still kelp
mortal iris
charred cloud
#

Books to continue learning linear algebra? I took intro to linear already and this course concluded with complex and orthogonal diagonalization. What’s a good book that picks up where that leaves off?

cunning elk
#

FIS and hoffman/kunze are both pretty standard

charred cloud
cunning elk
#

npnp

tawny cosmos
tidal path
ember lark
#

ladr is great

ember lark
#

sybau twin

mortal iris
remote blaze
#

@mortal iris hello bro any suggestions for JEE aspirants

wicked fractal
#

Killuminati in shambles

remote sparrow
#

killuminati gonna have to put "No JEE help" in bio

remote blaze
mortal iris
remote blaze
remote sparrow
#

put it in ur server name too

#

make it "Killuminati (No JEE help)"

remote blaze
mortal iris
# remote blaze You guys kinda hate aspirants i think

I can say for a fact that I do. Dafuq is an exam (JEE/NEET/NET/JAM/JEST/TIFR GS, etc. whatever) aspirant? The IMO is far more prestigious as a competition. Nobody goes around calling themselves IMO Aspirants as a cultural phenomenon. It's just stupid.

tame tree
mortal iris
ember lark
#

context, in case you were confused:

mortal iris
ember lark
#

plz react with an opencry for my troubles

mortal iris
remote blaze
ancient ridge
#

Those exams look insane and brutal.

mortal iris
# ancient ridge Those exams look insane and brutal.

That they are, especially the second round (Advanced) for which qualification is fairly easy. As much as I respect the sacrifice these students make to clear this, I have far more apathy towards the stupidity of doing so under heavy social and peer pressure.

normal crystal
mortal iris
white cradle
#

gonna start this off by mentioning How To Prove It by Velleman as a book for anyone who wishes to transition from computational math into proof-based math

true veldt
#

so this channel i guess was gonna be to plan how to use it, or we can just make it up as we go

#

right now only certain people can use the channel, then when enough posts are collected then we can open it up to everyone

main flax
#

is this a book recc channel? i lik: gallian abstract algebra, robert g bartle analysis, ireland and rosen nt

#

i'm very glad to witness the birth of a new channel btw

pale mica
main flax
true veldt
#

we'll see, i have a few things to do today. yeah this is supposed to be a book recommendation channel

main flax
#

I suppose this means you should compile a list from time to time and pin it

true veldt
#

the rough idea would be that this would be a channel for people to ask for and talk about book recommendations

#

and that the channel will eventually be public

#

maybe in the next few days

wooden sparrow
quick hornet
#

it's hard to go wrong with a prealgebra book.

wooden sparrow
#

okay, I'm just anxious....

quick hornet
#

If you want to learn, spend less time worrying about this and more time doing math

wooden sparrow
#

okay sorry

main flax
#

can someone recommend me a introductory complex analysis book (and explain why) please

true veldt
#

Visual Complex Analysis by Needham has lots of pages but lots of pictures for intuition

#

@main flax

main flax
#

will check, ty

civic carbon
#

Gamelin is my favorite intro complex analysis book. It goes a lot further than most other intro texts, and has very lucid explanations. Whenever I want to understand something better, that's the first place I look.

#

I think of Visual Complex Analysis as being a companion to a more classic text on the subject.

sage python
#

Gamelin I've heard very good things about yeah

#

Been meaning to check it out. Stein-Shakarchi is the standard nowadays and it's very clean, practically bedtime reading, but rubs me the wrong way somehow.

#

Good if you want some basic analytic NT though

civic carbon
#

Stein and Shakarchi is great, but I would not call it an introduction

#

and their fixation with the idea that Fourier analysis should come first is... bizarre?

sage python
#

It's odd. If I were them I'd do measure theory first so that I could use it in what comes after

civic carbon
#

haha I'll be honest, I never think about measure theory

#

but I do agree with them that really, complex analysis should be thought of as mor efundamental than real analysis.

prime oak
#

+1 to that one being in the list

frigid comet
#

Gamelin looks nice, somehow I never opened that one before.

civic carbon
#

haha by coincidence I have it right here on my desk

frigid comet
#

I haven't really needed a complex analysis reference for a while, but have a hard copy of ahlfors, and knopps theory of functions. the latter just because it was amongst things being given away by a retiring prof.

#

It actually came in handy at some point for some slightly messy stuff relating to perturbations of an analytic family of operators.

#

but otherwise looked old fashioned in a not fun way. I do like ahlfors though.

sage python
#

I still need to learn the stuff better I feel. I had an undergrad class and know the theorems but it was super super slow, and the grad one did some other stuff but didn't have psets. I wanna learn the topology POV better and do some actual problems lmao

civic carbon
#

I don't think I know what a pset is

sage python
#

Problem set

civic carbon
#

oh haha

#

I thought it was some component of complex analysis that you viewed as wholly essential that I had never heard of

#

again, I cannot recommend Miranda highly enough

sage python
#

Oh hah I was actually considering reading Forster with a friend before I got overwhelmed with things to do

#

Still wanna read, either Miranda/Forster/Donaldson at some point

#

Though also should like, do more basic complex analysis stuff (basically never computed a contour integral, my undergrad psets were mostly problems related to winding number)

#

Been thinking of Narasimhan

civic carbon
#

Miranda hammers home a lot of the basic complex analysis stuff while connecting it with geometry of curves

#

Fulton is, to my recollection, all algebra

sage python
#

Err, Forster is different

civic carbon
#

oh, nevermind 😛

sage python
#

My impression is that Donaldson is more topology/GGT, Forster is more sheaf cohomology, and Miranda is more AG

civic carbon
#

I can never retain any information about sheaf cohomology. I awlays learn it, understand it, and a month lateri t is like it never happened.

gray gazelle
#

Do you guys have any books that I can use to learn more mathematics that is easy to read and understand? I want to start from one's that require calculations and then slowly transition to theoretical mathematics.
Topics I know : from elementary to high school mathematics including +2, numerical methods (like trapezoidal, Newton - rhapson method), multiple integrals, beta gamma functions, statistical probability (until sampling and some part of hypothesis testing).

quick hornet
#

what do you want to learn?

gray gazelle
#

Not sure about that

#

But something that dosen't ask me to find many proofs but makes me do more calculations

quick hornet
#

thats still pretty broad

#

computational diffy eqs maybe?

gray gazelle
#

Computational differential equations?

quick hornet
#

yeah

gray gazelle
#

Okay, so, what is it about?

quick hornet
#

i'll admit i dont have a great reference for that, but someone else may be able to provide

velvet briar
#

Have you done linear algebra yet?

quick hornet
#

differential equations is about - shockingly - solving (and studyin gthe behaviour of) equations involving derivatives (and integrals)

velvet briar
#

Btw differential equations example question
What's the function y(x) that follows this rule:
y' = xy

#

I have an engineering book which discusses it pretty well

hollow current
#

y' = xy
1/2e^x^2

#

just an example

gray gazelle
#

I know basic matrix operations like transpotions, finding determinants, inverses, multiplication, cramer's rule and many other things that I can't remember off the top of my head

velvet briar
#

Cool cool, so you know applications of linear algebra. If you wanted to get more proof-based, linear algebra is an amazing place to start, and Axler is a good book

gray gazelle
#

Also, I wish to learn more machine learning, computer vision and embedded so, anything that may be able to further me in those fields will be more than welcome.

#

And, is there a good book for learning Numerical Methods from that teaches you using a programming language?

velvet briar
#

@gray gazelle
Then honestly, I'd suggest jumping right in. You have the applications you need.

hollow kayak
#

How does Axler compare to Strang?

calm crane
#

most numerical methods book doesnt focus on a specific language and just go over the details of the algorithms i believe
Try picking up some language, it isnt too hard to implement numerical algorithms usually

gray gazelle
#

👍

sage python
#

@hollow kayak Strang has two books: "Introduction to Linear Algebra", and "Linear Algebra and its Applications". Both are more focused on computations/applications, while Axler is more theoretical

#

Among Strang's two books, the first is kinda lower level compared to the second (which at a glance feels somewhat easier than Axler)

crude lake
#

lol why's this under general

#

unless this is for math books only

indigo stone
#

A.B.C Maths for Kids - "Teach your kids Maths the fun way!" - E.H Carr

#

A monumental book in Math pedagogy, innovative and very original.

gray gazelle
#

Book for probability

#

?

#

In highschool/low undergrad level maths

#

Most I've seen require measure theory etc

gray gazelle
#

Also some basic statistics

mossy flume
#

There's a stats class I have to take that only has calc 3 as a prereq. The textbook is Probability and statistical Inference

#

idk anything about it tho

cedar tundra
#

Hey guys, is there any website which i could get free books? Like economy, business management?

#

Also for maths

#

Libgen aurora?

normal tinsel
#

guys which book would you recommend that would blow my mind

#

I want to get a book that shows the beeauty of math

#

I do not want a theory book now

cedar tundra
#

Ahh i see thanks!

normal tinsel
#

What would you advice me to read ? Feel free to leave your suggestions

#

I was thinking about Prime Obsession

pulsar aurora
#

Just watch any of the glorified youtube videos. 😛

clever stratus
#

humble pi?

cedar tundra
#

Aww libgem didn't work....

pulsar aurora
#

i wouldn't know a good book though. I find math to be interesting in its details than the pop-sci kind of materials

gray gazelle
cedar tundra
#

I will try

prime oak
#

lol what

#

arxiv is not a book sharing resource is it

cedar tundra
#

Yeah its hard to find Malaysian books my friend 😂

#

Idk

gray gazelle
#

No it is not. it is for articles

#

Sorry

cedar tundra
#

I see...

#

Nah its OK

#

Ok*

prime oak
#

its for scientific papers lol

gray gazelle
#

Yes

cedar tundra
#

Still good

gray gazelle
#

I am sorry. I thought it would answer to his question. I was wrong

normal tinsel
#

Hi @sacred wagon I saw a lot of reviews of that book

#

Speacially on Calculus by Stewart

#

They mention that book all the time

clever stratus
#

what about salas hille etgen for calculus

pulsar aurora
#

For calculus, you have to spread around a bit. I think any college level calculus will be sufficient, then for deeper theory, you'd have to sort of read around. Spivak is nearly a meme-level suggestion.

limpid gazelle
slender sphinx
#

"Spivak is nearly a meme-level suggestion." 🤔

civic carbon
#

Spivak's calculus book is laugh out loud hilarious.

pulsar aurora
#

A lot of people always suggest it, but I never know if it's actually legit suggestion. That said, I couldn't stick with it. Didn't seem bad, but never had anything else to compare it with back then.

civic carbon
#

I got a copy from Bill McCallum who told me the book was so inspirational to him it was 100% responsible for him becoming a mathematician.

hearty steppe
#

Sweet, this channel is open now!

#

Spivak is a supplement for analysis as far as I have been reading up on here. I don't think that should be a beginners book to your regular calculus class in American university.

#

Dami yet to explain why Shilov is so basic for analysis, when it is a hit in the EU

#

Also can we not suggest shit like libgen in here? That's terrible to put out in the open.

pulsar aurora
#

libgen is hit and miss anyhow. I prefer going to a college campus's library for actual decent materials

#

Or a used book store

raw aspen
#

One of my favorite books is "Proofs that Really Count"

hearty steppe
#

I have not checked out Spivak or Apostol yet but I think people recommend them based on picking up the rigor involved

pulsar aurora
#

I think Apostol's fine even for beginners if you're willing to slog it.

hearty steppe
#

I barely skimmed thru Spivak, it is very good but I mean, I wouldn't recommend it to someone getting into Calculus after taking a Precalc class

pulsar aurora
#

Apostol puts details in the history and the minute details of calculus.

#

That said, the one draw-back of Apostol is that he may not reference all techniques to modern day equivalents like Riemann's Sum.

#

At least, thus far in my study of it

hearty steppe
#

Also I like James Stewart, I completed it (most of it to the point I grasp up to multivar anyway) and I don't think you can go wrong with the sheer amount of exercise problems you can work on to make sure you understand the concepts

pulsar aurora
#

I cannot recommend any proper textbooks. My calc classes had us use Early Transcendentals by Jon Rogawaski, however the edition I have feels a bit over the place, but fairly well paced otherwise. Then I have another that seems better organized and more thorough in proofs without going overboard, but I haven't actually studied much of it.

civic carbon
#

On calc books, my strongest feeling is that Hughes Hallet's multivariable calc text is far better than the other standard options.

hearty steppe
#

Yea I'm skimming thru the contents section of Apostol right now and both books seem great to supplement for real analysis

pulsar aurora
#

Apostol seems more on Geometric analysis though.

#

WHich I don't mind at all as it helps me visualize what's going on in my skull

hearty steppe
#

Nothing wrong with that though. Geomtrical understanding is important understanding in maths.

pulsar aurora
#

Oh sure. Just stressing the focus from what I understand.

hearty steppe
#

Yea and when you get to integral calculus, your not gona avoid doing geometric series lol

#

That means the focus of Apostol is pretty much on point

#

Also man there is quite a bit of material crammed into Apostol compared to other books that gloss over calculus.

#

Two whole volumes

pulsar aurora
#

Yep. I'm unsure of the quality, but I think it helps me deal with college calculus without feeling the "Just memorize it" notion that people typically have

#

That said, it goes about it differently. Does the typical set up of basic analytical tools from algebra proofs, summations, and equivalency theorems, then goes into integrals using step functions and upper/lower bound comparisons. THen limits, then differentials. This seems to cause some level of nay-say by some people I have talked to as 'integrals cannot be defined without limits' However, he seems to define them just fine. It may not be Riemann's sums definition directly though. I've yet to study actual integrals in a typical college course however

#

So, unsure what the main differences, or if Apostol just decided not to reference Riemann at any point

#

So, it's on my things to think about as I study is, What is the key difference, if any. Which is always a good thing to have

hearty steppe
#

Yea thats the thing when it comes to the transition to advanced mathematics, you start to understand instead of just memorize.

pulsar aurora
#

Yeah, also makes it much more interesting

civic carbon
#

If math were about memorization I never would have made it. I've been teaching calculus for over 10 years, and I still look up trig values on the unit circle.

valid moth
#

lol

#

smh just approximate with deg 3* taylor poly

#

lol

civic carbon
#

if one accepts O(1) error, the degree 0 will work

valid moth
#

values range from +-1, so 0 seems like a good approx

steel viper
#

i think spivak as an intro to calc is fine tbh

velvet briar
#

I accept O(0) error

civic carbon
#

I hope you never accidentally encounter a floating point number

gaunt veldt
#

Having done Calc II in stewart, and Calc II in Briggs Calculus, I prefer Briggs @hearty steppe ,

hearty steppe
#

Briggs?

#

I use Larson for tutoring people at the college I work at and seems almost identical to Stewart

#

Their classes use Larson anyway

final kayak
#

calculus early transcendentals anyone?

main flax
#

by thomas? its a good book

blazing dagger
#

@tranquil ocean what book is this? The typesetting looks great

limpid gazelle
#

It looks like the Knot Book

valid moth
#

no it does knot

limpid gazelle
#

Yeah it is the knot book

valid moth
#

also

#

@blazing dagger you're back

limpid gazelle
#

"The Knot Book" by Adams

blazing dagger
#

Harro

#

Oh I see

valid moth
#

i think you're knot a book

blazing dagger
#

Thanks!

dreamy lake
#

anyone got a good book on probability

cold lagoon
#

i like probability theory from et jaynes

blazing dagger
#

That’s a meme book

#

Use jacod and protter probability essentials

steel viper
#

all books are meme books

civic ravine
#

any good book on lin alg?

steel viper
#

several

#

are you looking for something proof based?

civic ravine
#

idk really what im looking for

#

just a good book for starting?

blazing dagger
#

Klaus Janich linear algebra

hollow current
#

Leslie Hogben in Handbook of Linear Algebra provides a lot of theory

civic ravine
#

thank you both

calm crane
#

is suggesting hoffman kunze for lin alg a terrible idea

hearty steppe
#

Almost Everyone on server seems to suggest that one

steel viper
#

hoffman kunze is good

gusty smelt
#

just learn it from artin smh

calm crane
#

cant react to msgs here ><

gusty smelt
#

(the artin thing was serious btw, if you know some LA already it can be nice)

bitter raptor
#

Book of Proof imo good source when you know absolutely nothing about set theory, proofs, and combinatorics to start learning about them. Like as a high schooler who isnt familiar with the concepts

calm crane
#

tbh i learnt proofs by doing and reading solutions to olympiad problems

gusty smelt
#

same oof

bitter raptor
#

i mean someone who isnt familiar with them probably doesnt spend time doing that

#

I really mean to introduce those concepts to those who are clueless about them

hearty steppe
#

Artin is abstract algebra tho?

#

Learn from both?

calm crane
#

learn from jacobson kek has nice modules over pid stuff

gray gazelle
#

Does naive set theory

#

by halmos

#

teach set theory for beginners

#

or for people already familiar wit hthe subject?

north spire
#

for beginners

#

It has very few exercises so any assertion he makes is something you should prove if you want to make the most of it

gray gazelle
#

What if I don't know proofs yet?

north spire
#

Then, you'll have a fun time working through the book and scratching your head while proving everything he asserts

gray gazelle
#

So basically I should skip the book

north spire
#

That's up to you. It's a basic exposition. If you haven't been exposed to proofs, then you'll be scratching your head with most other sources you use.

#

Many people here suggest How To Prove It by Velleman as an introduction to proofs. You can use Halmos's text as a supplement.

gray gazelle
#

That seems wise

#

Thank you

north spire
#

You're welcome

gray gazelle
#

It's open to the public!

robust kite
#

What are some good books for self-studying analysis (especially analysis II)? I've heard some good things about Tao analysis I, but don't know how his analysis II compares

marble rock
#

rudin is golden standanrd

hearty steppe
#

Not in the EU apparently

marble rock
#

what do you guys think of ideals,varieties and alogrithms

#

AG text

hearty steppe
#

Shilov is standard in EU

#

AKAIK

tranquil ocean
#

It's alright. I mean, the benefit of the book is that it introduces some AG ideas without much background and is more concrete in the ways it does things

hearty steppe
#

Is it better to go the topology route first and then go AG? Like do Hatcher right

tranquil ocean
#

Uh, no

#

I feel like you should refrain giving advice about things you don't know

marble rock
#

1 more , how important is having an entire book on galois theory

#

im getting close to galopis theory now

#

there is a section for it on df but i can get a book ( first book for me yay ) of ian stewart

#

section vs book :D?

tranquil ocean
#

The book's cool and introduces AG ideas, but isn't super rigorous and doesn't really teach you a ton I guess. If you're looking to seriously study AG, you should just study commutative algebra and just pick up a real AG book

marble rock
#

yea

tranquil ocean
#

Of course, if you're actually interested in algorithms around AG, this book is great

civic carbon
#

I really love that Stewart's books, but I find the notation in his Galois Theory book awful.

marble rock
#

so for galois stuff

#

should i get a book or is the section in df

#

enough

#

for like average galois theory ig

#

im not like interested in it idik what it is yet

civic carbon
#

the section in DF is far more than sufficient. It goes in much more depth than Stewart's book

marble rock
#

wow

#

okay col

#

ty

frigid comet
#

what was a notational qualm you had with it @civic carbon ?

#

I can't remember his choices, but I have used that book in the past.

civic carbon
#

he gives names to all the natural embeddings, so there are just functions around everything

#

e.g. if L is an extension of K, then he'll call the inclusion K to L Gamma

#

that kind of thing

valid moth
#

$\eta_1, \eta_2, \hdots, \eta_{69}$

hasty eagleBOT
valid moth
frigid comet
#

Ah I see

sage python
#

@civic carbon damn, that book is 340 pages and covers less than 2 chapters of D&F?

gray gazelle
#

Is there a difference between baby rudin and spivak?

valid moth
#

baby rudin is analysis

#

spivak is calculus

sage python
#

^

valid moth
#

that being said, spivak is a good bridge into the way of thinking and argumentation in higher math

#

it's not just any calc book

gray gazelle
#

Can you go from spivak to rudin in that order

valid moth
#

sure

sage python
#

Spivak is a book that you can read with neither calc nor proof background

gray gazelle
#

or do you need some other material inbetween?

#

@sage python I highly doubt that

valid moth
#

no, it's a good idea even

sage python
#

I effectively did that lol

valid moth
#

dami get on my level

#

i did calc off of khanacademy when 12 before knowing hs algebra

gray gazelle
#

Spivak assumes you know sequences, proofs and binomial theorem etc which you usually learn in calc class

valid moth
#

yeah unironically i learned hs algebra by doing khanacademy calc

sage python
#

Doesn't assume you know proofs, he covers sequences at the end

#

And he literally either does binomial theorem in chapter 2 or has it as an extremely easy induction exercise

#

And literally Spivak was my intro to proofs lmao

valid moth
#

? imagine not having a course in arithmetic as your intro to proofs

gray gazelle
#

I have spivak literally on my hands and he shows sequences and series at page 25 -_- @sage python

#

So you had 0 knowledge of proof before spivak?

sage python
#

0

valid moth
#

thonkzoom there's this thing called flipping pages

sage python
#

Do you mean finite sequences or something?

#

Convergence in Spivak is chapter like

#

Twenty-n

#

22 I think

valid moth
#

i mean if it's finite you should call it a list

#

reserve sequences for infinite is cleaner

#

(imo)

gray gazelle
#

$\sum_{i=1}^n i = 1 + 2 + \cdots + n = \frac{n(n+1)}{2}$

hasty eagleBOT
gray gazelle
#

these

valid moth
#

actually the big brain move is to allow lists to be infinite like Axler

sage python
#

Look on page 24

#

He literally defines that notation

gray gazelle
#

IN ONE PAGE lol

#

then

#

3 pages later

#

he gives you difficult proofs on it

#

I mean if you are serious you knew nothing about proofs and series prior to Spivak

#

I will actually attempt it

valid moth
#

he's series

gray gazelle
#

I just want to know how did you learn to deal witt them?

sage python
#

I had seen like, the notation of a sum in... I don't wanna call it precalc but kinda precalc

#

But I had only done 1+...+n before

#

Like, Spivak doesn't do the thing that "Intro to Proofs" books do where they like

#

Say "Here's how to prove something by induction/contradiction/contrawhatever"

#

But the thing is he starts you off with the field axioms

#

And that's literally just like

#

Only do an algebra manipulation if there's a corresponding axiom. Chapter 2 teaches induction pretty much

#

And the specific mechanics of writing down a proof is really just logic, like you kinda figure that out as you go

#

Like okay assume something is false, what happens? This happens. Wait that can't happen though. Guess it couldn't have been false

blazing dagger
#

“Just logic’ Logicians triggered

gray gazelle
#

I see

#

I will read the book more carefully and give it a second attempt

#

Last question, how long did it take you to finish it, if you even did? @sage python

sage python
#

So, I was taking a class on it, and alternated between mostly going off lectures, mostly going off the book, and mostly winging it

true veldt
#

keep this channel about books

sage python
#

Tbh mostly winging it and panic reading Spivak since the lectures started off iffy. Eventually I started reading Rudin because I got bored (which is amazing and officially self-contained but actually kinda hard to jump into if you have neither calc nor proofs background. Not impossible but extremely hard)

#

I guess the lectures did come right out of Spivak so like lol but yeah I was mostly consulting the book directly for chapters 1-12

tight crag
#

archsys there is absolutely induction needed in what you just said

#

lol

#

that quick delete

valid moth
#

thonkzoom i didn't delete it

gray gazelle
#

A class is like what, 20 hours work a week?

#

The book is very tempting and I will attempt it

#

I gave up first time reading Spivak because I couldn't do the proofs

sage python
#

On the harder weeks maybe close to that, on easier weeks less

#

But yeah I think the idea is just like, when you're on the field axioms, remember that's all you have to work with

main flax
#

anyone know where i can pirateobtain
Clark Robinson's Dynamical Systems: Stability, Symbolic Dynamics, and Chaos 2nd edition? i tried libgen with no luck

rocky meadow
#

Man I tried reading Spivak when I was a freshmen in college and couldnt get past his introduction

#

Where he proves the basic algebraic properties lol

#

It was such a learning curve, getting into that mind set

main flax
#

time to bite the bullet i guess

gray gazelle
#

Do u guys know any book for freaking tough high school problems

#

for practise

tranquil ocean
gray gazelle
#

Not imo zoph

#

i mean high school level Basically little calc focussed

#

that is harder than highschool math @tranquil ocean

#

nd geometry

#

No i do IMO math

#

but i need for JEE

#

I mean like high school enterance exams

#

I want really cool problems on integration and calculus + coordinate geometry + sequance series + complex numbers stuff

#

I want book related on them with really good and interesting problems to sove on

gray gazelle
#

I found this

#

I'm reading spivak

#

His notation is killing me

#

the way he writes is melting my brain

#

Why can't he write i.e. for the trichomtomy law

#

One of the following is true
for any real number a > b, b < a or a = b

#

instead he writes

#

Let P denote the collection of all positive numbers
(i) a = 0,
(ii) a is in the collection of P
(iii) -a is in the collection of P

#

@sage python explain

hidden abyss
gray gazelle
#

?

blazing dagger
#

Old books are weird

#

That’s why I’m always a bit skeptical of “the classics”

gray gazelle
#

Many people praise and recommend it

#

It's the "bible of calculus"

blazing dagger
#

People like old books for some reason

gray gazelle
#

No it's specific to spivak only

#

same way with Lang's Algebra

blazing dagger
#

Even tho there are many newer pedagogically more sound ones

gray gazelle
#

as the bible of abstract algebra

blazing dagger
#

Yeah there are a lot of those

#

Rudin bible of analysis

gray gazelle
#

exactly

#

not because of their age i believe because they still get recommended today

#

lots of other old analysis, calc, algebra books exist too

#

but are hated

blazing dagger
#

True

#

Sometimes things just happen

#

Like memes u know

#

Ideas

gray gazelle
#

you are right

blazing dagger
#

Things just catch on

gray gazelle
#

I don't understand the hype of this book yet im only on page 13 tbh

#

but im gonna continue and see

gray gazelle
#

spivak monkagiga

steel viper
#

is spivak old?

#

also @gray gazelle he is going to start doing that iirc after he introduces and explains it so like

#

starting in chapter 2

calm crane
#

@gray gazelle including multiplication and addition that is how you define a ordered field usually

steel viper
#

also is lang's algebra the bible of abstract algebra

#

like his grad algebra book?

calm crane
#

idk but it is pretty useful sometimes

steel viper
#

I feel like I see it get shit on more often than not lol

gray gazelle
#

@steel viper 1967 lol

#

@calm crane I just don't like the notation for some reason it seems too detailed or something

steel viper
#

I feel like considering his target audience it makes sense to be detailed and explicit

#

Maybe not so much for the very first things but later on as things get a bit more complicated I don't see why not

calm crane
#

it just generalizes easier¯_(ツ)_/¯

steel viper
#

Yeah

calm crane
#

but yea it can be confusing at first

gray gazelle
#

i hope you guys are right im really giving this book a chance 😭

gusty smelt
#

also ill add there is no reason to be bashing the old books lol, there is a reason these books are still used after so many years, its cause they are good lol

#

and different authors will use different notation, having the flexibiity to read all of them is p important

gray gazelle
flint forge
#

always bash old books

#

if its not written in latex its bad

quick hornet
#

rip rudin

flint forge
#

Im shocked no on has latex'ed rudin yet

#

it would be a service to the community

gusty smelt
#

guess im latexing rudin now

limpid gazelle
#

There's this

#

But it isn't an exact copy of rudin

#

It's "a more digestible version of 'Principles of Mathematical Analysis'"

flint forge
#

interesting

civic carbon
#

Marcus was the non-Latex book I was most attached to, but I hear it has been texed now

gusty smelt
#

yeah, the original typesetting of marcus was kinda

#

really bad

civic carbon
#

haha yeah, really bad is pretty generous

#

though much better than the Mumford Oda notes hahaha

gusty smelt
#

i have the new version of marcus, its latexed and nice now

flint forge
#

Oh man the worst crime in mathematical history

#

is that Groups of Homotopy Spheres I is a Kervaire-Milnor paper that is not latex'ed but at least is legible

#

They never published II

#

But someone wrote lecture notes to cover what would have been in II

#

and these lecture notes are quite possibly the worst typeset thing I have ever read

#

to the point where I just decided to not read them

civic carbon
#

a large group of algebraic geometers were working on a bigger version of the Red Book, but, according to legend, at some point the project fell apart because of... we'll say personality issues with one of the authors. But what was made was so valuealbe people copied what they had, and then these copies would get passed down generation to generation. So my copy is a xeroxed copy of a xeroxed copy of a xeroxed copy of...

#

But the thing is a mess, like it alternates between typed and handwritten

flint forge
#

lmao

quick hornet
#

i've seen "typeset lecture notes" where the author used | for parentheses () and quotienting / and setminus \

#

i still dont understand the motivation

#

doesnt everything ever have parentheses

#

???????????

civic carbon
#

I really don't like \ for set minus

flint forge
#

apparently the only reason we call bar complexes bar complexes

quick hornet
#

i mean even - would be an improvement

#

over

#

A | B

flint forge
#

is that they used to be typeset

#

with bars

quick hornet
#

yeah because \otimes on typewriters

#

was lol

#

it was techcnically possible but you had to like

#

type an o and then move the page ovver

#

and type an x

#

and if you missed it looked ugly as shit

flint forge
#

lol

#

latex is a great example of how open source software can add insane value without any cost

#

its kinda crazy

quick hornet
#

this is also where blackboard bold comes from btw

flint forge
#

this is why i support communism

quick hornet
#

people just sort of

#

rotated chalk on the chalkboard

#

to bold R and N and stuff

#

but you cant do that on typewriters

#

so they just shifted the page slightly and typed again

#

creating a double-bar effect

#

nowadays the double-bar has become "standard"

flint forge
#

i fuck w alternative notation for mathbb

#

like a nice cursive bold? its a nice change in pace

quick hornet
#

$\mathbb{Z}$ is the best looking symbol in all of mathematics and youll never convince me otherwise

hasty eagleBOT
quick hornet
#

and its almost as fun to write as varphi

upbeat vine
#

And one of the hardest symbol to write using hand

civic carbon
#

the best part about sheafs is getting to write $\mathcal{F}$

hasty eagleBOT
quick hornet
#

its not hard to write

#

just write like

#

a 7

#

and then an upside down 7

#

to make a Z

upbeat vine
#

Yeah but connecting those 7's get so hard 😭

quick hornet
flint forge
#

bbZ is easy to write by hand what

#

i have the hand writing of a toddler

#

but i can handle bbz

valid moth
flint forge
#

bad

#

do it the way namington suggested

quick hornet
#

petition to ban arch

valid moth
#

just wait till i show you how i draw \bQ

sage python
#

\mathbb{Z} but with a dash through it

#

Also this isn't book-based anymore so let's go back to books

civic carbon
#

the bbZ is the only Z I don't draw slashes through, I think

sage python
#

Also on the earlier discussion of classics/tex'd books: someone needs to either tex Hoffman-Kunze or write an actually good linear algebra book

#

Preferably the latter because Hoffman-Kunze shows its age for other reasons (e.g. doing systems of linear equations before vector spaces)

prime oak
#

Book recommendations for algebra?

marble rock
#

dummit foote

#

artin