Disciplines in mathematics assume you're familiar with that discipline's shorthand, constants and common forms. Also, you're not expected to read them as you're able to read a book. If it's 100% your niche specialty then maybe you could, but spending and hour or two puzzling out a broad understanding of a paper is absolutely normal, even for math academics.

[–] Transporter_Room_3@startrek.website 41 points 2 months ago

Relevant

[–] nova_ad_vitum@lemmy.ca 26 points 2 months ago (1 children)

They start by make sure you're primed to feel stupid if you don't understand it?

[–] ns1@feddit.uk 24 points 2 months ago (1 children)

It can feel like that, though I'm sure it's (mostly) not deliberate. Also the sudden jump from straightforward to incomprehensible, accompanied by a comment from the author along the lines of "well duh"

[–] user224@lemmy.sdf.org 6 points 2 months ago

Don't forget something like "As my book focuses on explaining concepts to normal people in simple manner, I will only include simple math."

[–] SpaceNoodle@lemmy.world 19 points 2 months ago

Every Wikipedia page on a mathematical concept as well

[–] Oestradiolo@lemmy.blahaj.zone 30 points 2 months ago

Gronk has one club.

Gronk brutally smashed the head of his fellow caveman, murdering his tribe, stealing his food, taking his club.

Gronk has two club.

Mahts.

[–] Sasha@lemmy.blahaj.zone 25 points 2 months ago

Come on, you can't just leave those dummy indices dangling, at least sum over them with a kronecker delta or the minkowski metric if this is some approximation of curved space.

(2) Appears to have a typo, but it could just be that the sqrt symbol won't extend further, which isn't good either lol

[–] NickwithaC@lemmy.world 23 points 2 months ago

Rest of the fucking owl...

[–] yetAnotherUser@lemmy.ca 13 points 2 months ago (1 children)

Are we sure this book isn't a shitpost?

[–] mindbleach@sh.itjust.works 21 points 2 months ago

This is absolutely taking the piss. "No calculus is required" is obviously not true when there's, what, five integrals on the page?

[–] serendepity@lemmy.world 9 points 2 months ago* (last edited 2 months ago)

If this is indeed real, can somebody please point me to the paper/text? That introduction has piqued my curiosity and I wanna read the whole thing, even if the math might be incomprehensible.

[–] itslilith@lemmy.blahaj.zone 6 points 2 months ago

The square you root in the second equation should go over the both integrals, but that step is pointless anyways. Just by symmetryzing the integration boundaries it's already a Gaussian integral, which is a standard integral