#mathblr

[queerghostboy]

HAVE YOU SEEN THE BISHOP? ????? it can top me anyday of the week. but ofc everyone said knight you sick freaks 😭😭😭

[that-lich-queen]

[piles-of-numbers]

you either die a mathematician or live long enough to see yourself become a computer scientist

[leibnizstan]

Being a TA for an intro proofs class is so fun because the prof told the students that they can use any reasonable symbol to end a proof after explaining QED/Tombstones are typical, and one student always does star stickers, another just says "R.I.P", another does a smiley face. I love nonstandard proof endings

[mellonhead58]

A Mathematician's Lament

I've put the introduction below the cut. I think it's worth reading if nothing else.

A musician wakes from a terrible nightmare. In his dream he finds himself in a society where music education has been made mandatory. “We are helping our students become more competitive in an increasingly sound-filled world.” Educators, school systems, and the state are put in charge of this vital project. Studies are commissioned, committees are formed, and decisions are made— all without the advice or participation of a single working musician or composer. Since musicians are known to set down their ideas in the form of sheet music, these curious black dots and lines must constitute the “language of music.” It is imperative that students become fluent in this language if they are to attain any degree of musical competence; indeed, it would be ludicrous to expect a child to sing a song or play an instrument without having a thorough grounding in music notation and theory. Playing and listening to music, let alone composing an original piece, are considered very advanced topics and are generally put off until college, and more often graduate school. As for the primary and secondary schools, their mission is to train students to use this language— to jiggle symbols around according to a fixed set of rules: “Music class is where we take out our staff paper, our teacher puts some notes on the board, and we copy them or transpose them into a different key. We have to make sure to get the clefs and key signatures right, and our teacher is very picky about making sure we fill in our quarter-notes completely. One time we had a chromatic scale problem and I did it right, but the teacher gave me no credit because I had the stems pointing the wrong way.” In their wisdom, educators soon realize that even very young children can be given this kind of musical instruction. In fact it is considered quite shameful if one’s third-grader hasn’t completely memorized his circle of fifths. “I’ll have to get my son a music tutor. He simply won’t apply himself to his music homework. He says it’s boring. He just sits there staring out the window, humming tunes to himself and making up silly songs.” In the higher grades the pressure is really on. After all, the students must be prepared for the standardized tests and college admissions exams. Students must take courses in Scales and Modes, Meter, Harmony, and Counterpoint. “It’s a lot for them to learn, but later in college when they finally get to hear all this stuff, they’ll really appreciate all the work they did in high school.” Of course, not many students actually go on to concentrate in music, so only a few will ever get to hear the sounds that the black dots represent. Nevertheless, it is important that every member of society be able to recognize a modulation or a fugal passage, regardless of the fact that they will never hear one. “To tell you the truth, most students just aren’t very good at music. They are bored in class, their skills are terrible, and their homework is barely legible. Most of them couldn’t care less about how important music is in today’s world; they just want to take the minimum number of music courses and be done with it. I guess there are just music people and non-music people. I had this one kid, though, man was she sensational! Her sheets were impeccable— every note in the right place, perfect calligraphy, sharps, flats, just beautiful. She’s going to make one hell of a musician someday.”

Waking up in a cold sweat, the musician realizes, gratefully, that it was all just a crazy dream. “Of course!” he reassures himself, “No society would ever reduce such a beautiful and meaningful art form to something so mindless and trivial; no culture could be so cruel to its children as to deprive them of such a natural, satisfying means of human expression. How absurd!” Meanwhile, on the other side of town, a painter has just awakened from a similar nightmare…

I was surprised to find myself in a regular school classroom— no easels, no tubes of paint. “Oh we don’t actually apply paint until high school,” I was told by the students. “In seventh grade we mostly study colors and applicators.” They showed me a worksheet. On one side were swatches of color with blank spaces next to them. They were told to write in the names. “I like painting,” one of them remarked, “they tell me what to do and I do it. It’s easy!” After class I spoke with the teacher. “So your students don’t actually do any painting?” I asked. “Well, next year they take Pre-Paint-by-Numbers. That prepares them for the main Paint-by-Numbers sequence in high school. So they’ll get to use what they’ve learned here and apply it to real-life painting situations— dipping the brush into paint, wiping it off, stuff like that. Of course we track our students by ability. The really excellent painters— the ones who know their colors and brushes backwards and forwards— they get to the actual painting a little sooner, and some of them even take the Advanced Placement classes for college credit. But mostly we’re just trying to give these kids a good foundation in what painting is all about, so when they get out there in the real world and paint their kitchen they don’t make a total mess of it.” “Um, these high school classes you mentioned…” “You mean Paint-by-Numbers? We’re seeing much higher enrollments lately. I think it’s mostly coming from parents wanting to make sure their kid gets into a good college. Nothing looks better than Advanced Paint-by-Numbers on a high school transcript.” “Why do colleges care if you can fill in numbered regions with the corresponding color?” “Oh, well, you know, it shows clear-headed logical thinking. And of course if a student is planning to major in one of the visual sciences, like fashion or interior decorating, then it’s really a good idea to get your painting requirements out of the way in high school.” “I see. And when do students get to paint freely, on a blank canvas?” “You sound like one of my professors! They were always going on about expressing yourself and your feelings and things like that—really way-out-there abstract stuff. I’ve got a degree in Painting myself, but I’ve never really worked much with blank canvasses. I just use the Paint-by-Numbers kits supplied by the school board.”

pardon the wall of text, tumblr cries and hits itself every time it hears the word "formatting".

I didn't wanna derail the other post but I still wanna spread some love for my favourite subject...

Reblog if you've ever felt genuine joy or excitement from doing and/or thinking about math

[climbingbitch]

hey are you the empty set because you're

[kimblestudies]

november.

it's a time of year, go be sure.

never thought it'd say it, but i'm ready to go home

life feels messy as hell.

—💌🎞️—

[desmos-calculator]

I was thinking about those posts I sometimes see about dates being an equation (you know the ones), and was thinking, is there a year where that happens the least? maybe even one where it doesn't happen?

Well, I don't think I'd be qualified to cover every function that uses two inputs, and I would assume every function is quite a few and probably would cover every day

So, I'll be sticking to the basic 4,+,-,× and ÷, since that's what I see most common with those posts

First step is to get a list of all the dates (I should clarify, from the Gregorian calendar, since that's the most common dating system I see from those posts), which is pretty easy, just make it yourself! you know how the months work... right?

right?

Anyways, we have a list now! two, in fact, so we can put our days and months separately

Now, we just apply the functions and,

meh, could be prettier, now, we gotta consider that negative years don't exist yet, less so something like XX negative 19, so those extra spots below, gotta go

We also need to consider that years such as XX 100 would theoretically someday exist, but we're just gonna assume you're only looking at the last 2 digits, so, BEGONE!

And don't forget about the year XX 02.75, that was the best year... for all of us that used a different calendar system, so I'm going to need to ask you numbers to LEAVE!

And that should be all the house keeping we need to do, let's collapse em down

woooah, coolio, let's color them based on the group come from

preeeetty, someone should crochet that

Now, you may think "Hey, he left out my favourite day, [February 29th], How could he????!!!!!"

Well, 2+29=31, which can't be a leap year, 2-29 is negative, so no, not possible, 2/29 is a fraction, and 2*29=58, which is NOT a leap year

so, to anyone guessing dates that can never work, congrats, you won!

we can also see what years work with each function

with division ending the lowest, since all it does is decrease, we find the last date to be XX14, on 28th February, ironic. sorry y'all didn't notice it til it was too late.

for subtraction? the last date will be... 30th January 2029! Get your cakes (uh, funeral cakes?) ready for the last date possible for subtraction in.... 4 years time?!?! jesus, time flies, huh?

uhmm, for addition, we find the final day to be 30th December XX42! woa

and the multiplication goes til the end, being the year XX99, dated November 9th...... ANYWAYS

the year of most functional dates will be XX12 with the dates:

11th Jan (11+1=12), 12th Jan(12*1=12), 13th Jan(13-1=12),

6th Feb (6*2=12), 10th Feb (10+2=12), 14th Feb (14-2=12),

24th Feb (24/2=12), 4th March (4*3=12), 9th March (9+3=12),

15th March (15-3=12), 3rd April (3*4=12), 8th April (8+4=12),

16th April (16-4=12), 7th May (7+5=12), 17th May (17-5=12),

2nd June (2*6=12), 6th June (6+6=12), 18th June (18-6=12),

5th July (5+7=12), 19th July (19-7=12), 4th August (4+8=12),

20th August (20-8=12), 3rd September (3+9=12),

21st September (21-9=12), 2nd October (2+10=12),

22nd October (22-10=12), 1st November (1+11=12),

23rd November (23-11=12), 1st December (1*12=12),

and finally... 24th December (24-12=12)

awesome

the years with no days are all primes after XX43, since if it had any factors, it'd work for multiplication

except, I lied, XX58, XX62, XX74, XX82, XX86 and XX94 are all not prime, yet have 0 days, since they're divisible by 2 but the other factor is bigger than 30

except, I lied again, XX58 is actually the only one with a potentially real day, being february 29, as we mentioned earlier.

"BUT WAIT, WHAT ABOUT m/d/y? WHAT ABOUT THE AMERICAN SYSTEM?!?!"

hghhghghg

graaaaah, the division section barely exists

woah, separation, around the x=y line too, with the same shape no less

except, BOOM, i lied to you, AGAIN.

you see, this shape is actually skinner than the original one

you actually only lose potential dates by switching to the other system, and here's how many you lose

The years that lose the most are XX13, XX14, XX15 with 13 missing days, and we'll reach a consensus for amount of days working with math in XX32! the perfect number to end on

but also, this system gives us our earliest year ending with a multiplicative date, being 1st December XX12 (XX12 was a great year for functions, huh)

So, when's the next functional date? well, we missed 13th November, so mark your calendars for 12th December!!

So, what did we learn?

Well, I mean, I guess you can brag about knowing when the next date that's a math equation.

and also the tragedy that is 29th February XX58...

Suggest other calendar systems, and I'll look into them!

[greenouillee]

I mean, hey, even the authors are doing it:

[Image ID: a screenshot of a book's blurb, reading, ' "This is such serious competition to Bjorken and Drell that I fear for our royalties." - Prof. J. D. Bjorken, Stanford Linear Accelerator Center'. End ID]

(From the blurb of Peskin & Schroeder's Introduction to Quantum Field Theory)

Forget the name of every textbook you've ever seen and just refer to them by the names of the authors.

[associativeglassdesert]

breaking: math student writes pages of proofs for algebraic number theory problem set, struggles to assign question numbers on gradescope

[sleepy-bebby]

[h0bg0blin-meat]

Here's the link to the video

👏 SAY 👏 IT 👏 LOUDER 👏

[tumbler-polls]

Pick an option at random :)

[justactgaussian]

So I've seen the whole 'Math's Saddest Love Stories' (asymptotes that drift ever closer but never meet etc.), but I think we're missing the potential of Math's Funny Love Stories. The couple whose destiny is an infinite cycle of breaking up and getting back together again:

Oscillating rapidly in and out of each other's life for a while before drifting apart in opposite directions:

Drifting ever closer, until you finally meet and go fuck that:

One who drifts slowly closer to the other, until they acutally meet and decide to make a very sharp turn in the other direction:

Whatever hellscape of contrived coincidences these series of infinite near misses are:

[shouldbepersephone]

My brother (currently in college shooting for a PhD in maths) sent me this at 2 am and informed me that I should “put it on the tumbler”

Jobius Strip