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Notices tagged with math

  1. LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} (lnxw48a1)'s status on Monday, 19-Oct-2020 04:56:15 EDT LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864} LinuxWalt (@lnxw48a1) {3EB165E0-5BB1-45D2-9E7D-93B31821F864}
    Remote profile options...
    A grad student solved a #math problem that stumped experts for fifty years https://nu.federati.net/url/276729 [www bostonglobe com]
    Monday, 19-Oct-2020 04:56:15 EDT from nu.federati.net permalink
  2. Joshua Judson Rosen 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.

    • english
    • falafel
    • german
    • language
    • logic
    • math
    • poetry
    • tedtalk
    • wordplay
    Monday, 17-Feb-2020 22:20:23 EST from web permalink
  3. kat (boneidol)'s status on Friday, 18-Oct-2019 12:34:57 EDT kat kat
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    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
    Friday, 18-Oct-2019 12:34:57 EDT from indy.im permalink
  4. kat (boneidol)'s status on Friday, 27-Sep-2019 12:56:28 EDT kat kat
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    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
    Friday, 27-Sep-2019 12:56:28 EDT from indy.im permalink
  5. kat (boneidol)'s status on Monday, 16-Sep-2019 15:41:51 EDT kat kat
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    This is very good https://www.bbc.co.uk/programmes/b09nvrcn
    #EugeniaCheng speaking about #Math
    Monday, 16-Sep-2019 15:41:51 EDT from indy.im permalink
  6. kat (boneidol)'s status on Thursday, 25-Jul-2019 19:24:15 EDT kat kat
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    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
    Thursday, 25-Jul-2019 19:24:15 EDT from indy.im permalink
  7. kat (boneidol)'s status on Thursday, 25-Jul-2019 17:20:56 EDT kat kat
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    I just read

    S.S. Al-Riyami 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
    Thursday, 25-Jul-2019 17:20:56 EDT from indy.im permalink
  8. kat (boneidol)'s status on Thursday, 25-Jul-2019 06:46:46 EDT kat kat
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    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
    Thursday, 25-Jul-2019 06:46:46 EDT from indy.im permalink
  9. kat (boneidol)'s status on Thursday, 25-Jul-2019 06:46:29 EDT kat kat
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    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 …
    Thursday, 25-Jul-2019 06:46:29 EDT from indy.im permalink

    Attachments

    1. boneidol-20190725-ostatus-pagt.html
  10. rtsn (rtsn)'s status on Tuesday, 06-Feb-2018 05:47:11 EST rtsn rtsn
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    !coffee & !math
    Tuesday, 06-Feb-2018 05:47:11 EST from gnusocial.de permalink
  11. rtsn (rtsn)'s status on Sunday, 04-Feb-2018 15:45:34 EST rtsn rtsn
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    If this is for real I'm mindblown: Tupper's self-referential formula: https://twitter.com/fermatslibrary/status/960154478224793600 !math 
    Sunday, 04-Feb-2018 15:45:34 EST from gnusocial.de permalink
  12. rtsn (rtsn)'s status on Saturday, 20-Jan-2018 14:13:50 EST rtsn rtsn
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    This is pretty neat: https://jeremykun.com/2017/07/24/boolean-logic-in-quadratic-polynomials/ !math 
    Saturday, 20-Jan-2018 14:13:50 EST from gnusocial.de permalink
  13. kat (kat)'s status on Tuesday, 26-Dec-2017 09:05:16 EST kat kat
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    on the n'th day of xmas my true love gave to me  sum $ zipWith (*) [1..n] [n,n-1 ..1] things. 
    https://oeis.org/A000292 !math
    Tuesday, 26-Dec-2017 09:05:16 EST from quitter.se permalink
  14. kat (kat)'s status on Monday, 20-Nov-2017 07:36:30 EST kat kat
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    • algebra
    @algebra These are reptend primes and are part of the solution to https://projecteuler.net/problem=26 !math
    Monday, 20-Nov-2017 07:36:30 EST from quitter.se permalink
  15. kat (kat)'s status on Friday, 03-Nov-2017 14:27:50 EDT kat kat
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    • algebra
    @algebra isn't that pretty important piece of !math in the proof of RSA ?
    Friday, 03-Nov-2017 14:27:50 EDT from quitter.se permalink
  16. kat (kat)'s status on Thursday, 02-Nov-2017 18:35:15 EDT kat kat
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    ProjectEuler Q31  http://qttr.at/1zl7 ... and it's part of the http://qttr.at/1zl6 Merkle Hellman Knapsack Problem cryptosystem !math
    Thursday, 02-Nov-2017 18:35:15 EDT from quitter.se permalink
  17. arunisaac (arunisaac)'s status on Wednesday, 01-Nov-2017 13:07:03 EDT arunisaac arunisaac
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    "posits" to replace floating point arithmetic https://www.youtube.com/watch?v=N05yYbUZMSQ !science !math
    Wednesday, 01-Nov-2017 13:07:03 EDT from social.systemreboot.net permalink
  18. rtsn (rtsn)'s status on Monday, 30-Oct-2017 13:58:52 EDT rtsn rtsn
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    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, - Humboldt-Universität zu Berlin, - Techn Universität München and - Universität Münster. Anyone got any experience from these or general recommendations? Not sure if my grade…
    Monday, 30-Oct-2017 13:58:52 EDT from gnusocial.de permalink

    Attachments

    1. rtsn-20171030-ostatus-ygf9.html
  19. rtsn (rtsn)'s status on Sunday, 29-Oct-2017 07:58:10 EDT rtsn rtsn
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    • algebra
    hey !math how do feel about @algebra posts automagically being tagged into the group?
    Sunday, 29-Oct-2017 07:58:10 EDT from gnusocial.de permalink
  20. rtsn (rtsn)'s status on Sunday, 29-Oct-2017 07:57:04 EDT rtsn rtsn
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    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
    Sunday, 29-Oct-2017 07:57:04 EDT from gnusocial.de permalink
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