jts

dyslexic and a bit of a dumbass. please forgive me. phd math. he/him

[jts @jtstj_]

@JFPuget @eshear @cloneofsimo when someone says “manifold”, they do typically mean smooth riemannian manifold w/o boundary. but manifolds w/ boundary are definitely a thing! see stokes thm:

https://t.co/V5dA3AnSMP

but birkoff polytope isn’t a smooth manifold w/ boundary. it’s a manifold w/ corners (gross)

[jts @jtstj_]

@davidmbudden fighting fire with fire

[jts @jtstj_]

@davidmbudden pot calling the kettle black

[Daniel Litt @littmath]

We’re not there yet, but worth remembering this:

[Aric Toler @AricToler]

I can't stop reading the Grok reply page. It's going schizo and can't stop talking about white genocide in South Africa.
https://t.co/Y7IQonCkiG

[Maine @TheMaineWonk]

Pretty clear how this guy bankrupted a casino.

[jts @jtstj_]

@ScoopStan @agraybee yes, 1180 is much more than 175, but i don’t get the per capita part. do you think an israeli life is worth over 100x that of an indian life?

[jts @jtstj_]

@GilStrangMIT society

[jts @jtstj_]

@pencil_gang @alz_zyd_ @XYHan_ nah, they are just as readable (if not more), use less lines of code, and are faster than using loops

[jts @jtstj_]

@LordOdin3D @_taymiyah @XYHan_ @alz_zyd_ to be clear, he meant to write "[y for y in x if y > 3]" where if acts as a filter. in this case, you can't use an else there

but yeah, you can write things like "y if b else z" where if/else act as a ternary condional operator. same as "b ? y : z" in other languages

[jts @jtstj_]

@ryxcommar @personofswag yeah, i can understand making the distinction for inner products other than the dot product, but you can still define angles for any inner product space. now, those saying, vectors can't be perpendicular in euclidean R^d for d > 3 are just being really silly

[jts @jtstj_]

@RuslanSmith1 @souljagoytellem the uyghur separatist definitely claim the portions of western china which they’ve historically lived (what they call east turkestan) and consider the han chinese that live in the region as colonial occupiers

[jts @jtstj_]

@RBMEllis @beermesportball @souljagoytellem and you think "the left" supports saudi arabia?

[jts @jtstj_]

@RuslanSmith1 @souljagoytellem china controls the area most uyghurs live, so i'm not sure what you mean by "invade china". but yes, there has been many mass terrorist attacks committed by uyghurs in china (which doesn't excuse the persecution they face)

[jts @jtstj_]

@jskf__ @Vera_Icona_23 @fchollet a dumb conspiracy theory https://t.co/lMDjQvqhqf

[jts @jtstj_]

@beautyilt @hasanthehun then go volunteer, pussy

[jts @jtstj_]

@FearedBuck too bad republicans refuse to grant puerto rico statehood

[jts @jtstj_]

@__matmul__ @littmath like what? gpus have been readily available for quite some time

[jts @jtstj_]

@jxmnop related: consider the cube [-2,2]^d packed with 2^d many unit spheres centered at the points with coordinates of ±1. now imagine inflating another sphere centered at the origin until it touches the unit spheres. once d > 9, the middle sphere sticks outside the cube!

[Liv @Liv_Agar]

Last one is a really good punchline in the form of data visualization