Notices tagged with math

lnxw48a1 (lnxw48a1)'s status on Monday, 19Oct2020 04:56:15 EDT lnxw48a1 A grad student solved a #math problem that stumped experts for fifty years https://nu.federati.net/url/276729 [www bostonglobe com] 
Joshua Judson Rosen
How learning German taught me the link between maths and poetry
World Slam Poetry Slam Champion and maths nerd Harry Baker, speaking at TEDxVienna.

kat (boneidol)'s status on Friday, 18Oct2019 12:34:57 EDT kat Wikipedia is a bit rubbish on #math.. but this is funny..
I was reading the page on non commutative geometry and spotted this
"A smooth Riemannian manifold M is a topological space with a lot of extra structure"
No shit!
I wondering if I could extend this definition to
<Mathematical object> is a set with a lot of extra structure on it. ?
https://en.m.wikipedia.org/wiki/Noncommutative_geometry 
kat (boneidol)'s status on Friday, 27Sep2019 12:56:28 EDT kat How can you have a "tangent" to a "curve" when everything is over a discrete field?
I don't believe most of the explanations of elliptic curve cryptography
#math 
kat (boneidol)'s status on Monday, 16Sep2019 15:41:51 EDT kat This is very good https://www.bbc.co.uk/programmes/b09nvrcn
#EugeniaCheng speaking about #Math 
kat (boneidol)'s status on Thursday, 25Jul2019 19:24:15 EDT kat this was the lecture. https://youtu.be/mbv3T15nWq0
I've been watching the series, they are wonderful.
International Winter School on Gravity and Light 2015
#math #physics 
kat (boneidol)'s status on Thursday, 25Jul2019 17:20:56 EDT kat I just read
S.S. AlRiyami and K.G. Paterson, Certificateless public key cryptography 2003
https://web.archive.org/web/20181222114112/http://eprint.iacr.org/2003/126.pdf
The math is not too complicated, but I find the notation a pain.
Also, all the fuss over the group operation being additive in G_1 and multiplicative in G_2 seems such a faff.
#math #crypto 
kat (boneidol)'s status on Thursday, 25Jul2019 06:46:46 EDT kat The lecturer said that for a tensor of rank m over a finite dimensional vector space the number of components is
${m^{dim V}}$
So I looked at that for several hours! and could not understand it.
Well of course I thought about it now and it's obviously ${(dim V)}^m$
But I spent ages trying to convince myself that the incorrect thing was true.
Sometimes you just have to brave
#Math 
kat (boneidol)'s status on Thursday, 25Jul2019 06:46:29 EDT kat I was watching a lecture last night, about vector spaces and tensors. The lecture was great. I've never been very good at tensors, and struggled at that bit whilst at school. Anyway this lecture made it all super clear, and it was a great introduction to them. HOWEVER the lecturer makes a mistake in a small detail, whilsts discussing the number of components in a tensor with respect … 
rtsn (rtsn)'s status on Tuesday, 06Feb2018 05:47:11 EST rtsn !coffee & !math 
rtsn (rtsn)'s status on Sunday, 04Feb2018 15:45:34 EST rtsn If this is for real I'm mindblown: Tupper's selfreferential formula: https://twitter.com/fermatslibrary/status/960154478224793600 !math 
rtsn (rtsn)'s status on Saturday, 20Jan2018 14:13:50 EST rtsn This is pretty neat: https://jeremykun.com/2017/07/24/booleanlogicinquadraticpolynomials/ !math 
kat (kat)'s status on Tuesday, 26Dec2017 09:05:16 EST kat on the n'th day of xmas my true love gave to me sum $ zipWith (*) [1..n] [n,n1 ..1] things.
https://oeis.org/A000292 !math 
kat (kat)'s status on Monday, 20Nov2017 07:36:30 EST kat @algebra These are reptend primes and are part of the solution to https://projecteuler.net/problem=26 !math 
kat (kat)'s status on Friday, 03Nov2017 14:27:50 EDT kat @algebra isn't that pretty important piece of !math in the proof of RSA ? 
kat (kat)'s status on Thursday, 02Nov2017 18:35:15 EDT kat ProjectEuler Q31 http://qttr.at/1zl7 ... and it's part of the http://qttr.at/1zl6 Merkle Hellman Knapsack Problem cryptosystem !math 
arunisaac (arunisaac)'s status on Wednesday, 01Nov2017 13:07:03 EDT arunisaac "posits" to replace floating point arithmetic https://www.youtube.com/watch?v=N05yYbUZMSQ !science !math 
rtsn (rtsn)'s status on Monday, 30Oct2017 13:58:52 EDT rtsn I thinking about maybe taking an exchange semester (probably autumn 2018) and I've narrowed the list down to Scotland and Germany, in particular;  University of Edinburgh,  Universität Konstanz,  HumboldtUniversität zu Berlin,  Techn Universität München and  Universität Münster. Anyone got any experience from these or general recommendations? Not sure if my grade… 
rtsn (rtsn)'s status on Sunday, 29Oct2017 07:58:10 EDT rtsn hey !math how do feel about @algebra posts automagically being tagged into the group? 
rtsn (rtsn)'s status on Sunday, 29Oct2017 07:57:04 EDT rtsn goddamnit I feel like I really have to read up some on groups actions. It's such a basic thing but I realize when that when the concept pops up here and there there's a gap in my understanding. I hope it wont take more than like an afternoon to relearn the fundamentals. !math