Rob Eby math dude

The more I teach, and the more I play music, the more I think the role of the professor is primarily to teach students how to become experts at practicing.

Sorry for not knowing who shared this (or came up with this) originally, but it is a nice little puzzle for algebra students.

The Joy of Why podcast, which I cohost with Janna Levin, is coming back soon. Here's a preview of season 4. Hope you'll join us! podcasts.apple.com/us/podcast/the… @QuantaMagazine

@RobertTalbert Same here

We just had a faculty meeting where we were asked to identify some of the biggest challenges facing higher ed and my institution. Number 1 on my list was "ourselves".

Been trying to understand the inscribed square problem. Here is that journey. Let's start with a closed loop that forms a cow and instead of a square, try to form a rectangle. If the diagonals have the same midpoint and length, then we have a rectangle. (1/n)

New* video! If you’ve ever wondered what topology is, this problem is one of the best examples I know of to give an authentic sense of what it’s all about: youtu.be/IQqtsm-bBRU

A cubic whose roots are a pair of complex conjugates, and one real. As you move the real root, what do you notice? As you move the complex root, what do you notice?

Wow, fractals with sine are beautiful. Graph Link: desmos.com/calculator/xvj… insπred by x.com/JohnDCook/stat…

The whole course is freely available here: youtube.com/playlist?list=…

The newest Pearls treasury! To buy: tinyurl.com/yc692pvx

The same people who’ve spent the last several years decrying “unqualified DEI hires” are now shoehorning through Cabinet nominations who can’t even pass a basic background test.

The Future of Orion xkcd.com/3012

Europa Clipper xkcd.com/3011

Geometriphylogenetics xkcd.com/3010

Here's a fun little "magic trick." Can you figure out how it works? Hint: even and odd numbers. I was thinking you could roll a die to determine how much to count each time. (I saw the trick was credited to Martin Gardner—true? Source?) youtube.com/watch?v=DaWcL3…

If you're interested in AI, machine learning, data science, and black box models, you might enjoy my chat with @Stanford statistician Emmanuel Candès.

Proterozoic Rocks xkcd.com/3008

Probabilistic Uncertainty xkcd.com/3007