Mathematician. Curley Chair in Liberal Arts at Dickinson College. Author of Tales of Impossibility and Euler's Gem. Now: https://xitter.cf/t.co/cefdX8CG6u
Carlisle, PA
Joined August 2008
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Dave Richeson retweeted
(Inspired by @divbyzero)
In an effort to get something other than politics into your feed, a fun fact about ‘49’
The sum of the digits of the square of 49 (2401) is the square root of 49
(More in the image below)
Src: Issue 49 of #SixSTEMTweets newsletter
Link in alt text
ALT This is from issue 49 of the #SixSTEMTweets newsletter Read and join at https://sixstemtweets.beehiiv.com
Dave Richeson retweeted
@divbyzero I found it!
Dave Richeson retweeted
Reading one of my old blog posts to remind myself of something I once knew, like Dumbledore reloading a memory from his pensive.
Dave Richeson retweeted
It’s really hard to prove that a closed loop in the plane divides that plane into two pieces.
Dave Richeson retweeted
Another example from How To Fold It: cs.smith.edu/~jorourke/HowTo…
Dave Richeson retweeted
There is no "correct" solution to the Monty Hall Problem.
What some people circulate as a "solution" rests on the flawed assumption that everyone prefers cars over goats.
Dave Richeson retweeted
See you soon at #MAAthFest 🎉
MathFest attendees: I had such a good time with this hat tile activity at Bridges that I'm repeating it at MathFest: Friday, Aug. 9, 9:00-12:00 in the foyer across from the registration desk. Come for a few minutes or the whole time. The more the merrier! Please retweet! @maanow
Dave Richeson retweeted
Photos don’t do justice to how stunning this looked. In person. The enthusiasm was palpable.
Oh, and it’s the best place to stand in front of to take selfies with math buddies. @divbyzero
I had an amazing time at Family Day yesterday at @BridgesMathart. Chaim Goodman-Strauss, Scott Vorthmann, and I ran a hat tile build. We found out when we got there that we were not allowed to use the floor, but we improvised and were able to make a pretty big tiling anyway.
Dave Richeson retweeted
Google DeepMind have produced a program that in a certain sense has achieved a silver-medal peformance at this year's International Mathematical Olympiad. 🧵
deepmind.google/discover/blo…
Dave Richeson retweeted
The FINAL ROUND of the Big Internet Math-Off #BigMathOff is underway! I would love your vote, but what I would love even more is you sharing this link far and wide with all your math-y friends. Thank you! aperiodical.com/2024/07/the-…
Dave Richeson retweeted
Good Morning! Today is the first of two Semifinal matches in the Big Internet Math-Off! Read the pitches by @fran_tastic44 and myself, and cast your vote for the one that most tickles your fancy! #BigMathOff
aperiodical.com/2024/07/the-…
Dave Richeson retweeted
One of the few I've already read. And maybe the best math book I've read period. By Dave Richeson @divbyzero. (And was right. I didn't see half of these subjects as an undergrad math major.)
Dave Richeson retweeted
Here's today's ##BigMathoff... vote for your favourite... @Ayliean milk cartons or @davericheson calculator numbers...
aperiodical.com/2024/07/the-…
Dave Richeson retweeted
Thanks to many of you last week, I made it to the next round of The Big Internet Math-Off.
In Round 2, I'm already down by over 200 votes so if any of you want to vote, that would be wonderful! Here, I share my FAVORITE mental math trick: aperiodical.com/2024/07/the-…
Dave Richeson retweeted
Right now, almost halfway through Quarterfinal 2 of the #BigMathOff, Angela has a ~300-vote lead over Howie. But I have seen fortunes shift quite a bit in this competition! And I want to at LEAST make this thing competitive! So I'll say it: Vote for Howie! aperiodical.com/2024/07/the-…