Incredible as it seems, we’re now into October and Donald Trump remains President of the U.S. Oyyy...
Anyway, some math from the week:
1) Another brilliant math mind lost to us too soon last week, Vladimir Voevodsky at age 51:
h/t to Nalini Joshi for tweeting this fascinating 2013 Julie Rehmeyer piece on Voevodsky’s work:
2) RJ Lipton and KW Regan pay tribute to Voevodsky and the even younger demise of Michael Cohen here:
3) If you missed it, this math meme was making the rounds last week:
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Solve carefully!
230 - 220 x 0.5 = ?
You probably won't believe it, but the answer is 5!
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[If the explanation doesn’t hit you in a few moments, look it up; shouldn’t be too hard find on Web.]
4) A post sharing resources on the topic of ‘mathematics and music’:
5) Evelyn Lamb’s latest “Tinyletter”:
6) A new quite surprising paradox, “the bingo paradox”:
7) Of Gelman’s 58 posts this week (…ok, so I exaggerate a bit) this one was probably my favorite (but only if you’re not sick of hearing about p-values, a topic he admits he’s “blogging to death”):
http://andrewgelman.com/2017/10/03/one-discussion-redefining-abandoning-statistical-significance/
...and still more on p-values from Deborah Mayo here:
https://errorstatistics.com/2017/10/05/new-venues-for-the-statistics-wars/
...and still more on p-values from Deborah Mayo here:
https://errorstatistics.com/2017/10/05/new-venues-for-the-statistics-wars/
8) Numberphile connects Fibonacci to Mandelbrot:
9) Bit of an update on traveling salesman problem:
10) H/T to Mike Lawler and Drew Lewis for calling attention to this interesting discussion (of a meme I had ignored because, as Alon Amit says, so many of these memes are trivial… but not this one):
https://www.quora.com/How-do-you-find-the-positive-integer-solutions-to-frac-x-y%2Bz-%2B-frac-y-z%2Bx-%2B-frac-z-x%2By-4/answer/Alon-Amit?share=1
11) 3Blue1Brown on neural networks (new video):
https://www.youtube.com/watch?v=aircAruvnKk
12) and speaking of videos, “The Unreasonable Effectiveness of Physics In Maths” is a new hour-long video several folks pointed out this week:
11) 3Blue1Brown on neural networks (new video):
https://www.youtube.com/watch?v=aircAruvnKk
12) and speaking of videos, “The Unreasonable Effectiveness of Physics In Maths” is a new hour-long video several folks pointed out this week:
Potpourri BONUS! (extra NON-mathematical links of interest):
1) If you didn’t hear it, this RadioLab treatment of the ’Trolley car problem,’ may be worth a listen:
2) The always-interesting “Best-illusion-of-the-year” contest is back for 2017:
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