Monthly Archives: April 2013

Making connections

Posted on April 20, 2013 by Brent

Here’s something fun I was playing around with today. I generated 100 random points and connected some of them with lines. Can you figure out how I chose which lines to draw? How about these? (Same points, different lines.) Or … Continue reading →

Posted in challenges, geometry | Tagged , , , | 10 Comments

Animated Sieve of Eratosthenes

Posted on April 11, 2013 by Brent

Here’s something I made yesterday! (Note, I strongly suggest watching it fullscreen, in HD if you have the bandwidth for it.) Can you figure out what’s going on? The source code for the animation is here; I was inspired by … Continue reading →

Posted in arithmetic, counting, pattern, pictures, primes, video | Tagged , , , , | 12 Comments

Stars of the Mind’s Sky with Diagrams

Posted on April 6, 2013 by Brent

A few weeks ago, Paul Salomon posted a really beautiful work of mathematical art on his blog, Lost In Recursion: Stars of the Mind’s Sky, by Paul Salomon He included a precise mathematical description of the image, and I naturally … Continue reading →

Posted in geometry, group theory, pictures, programming | Tagged , , , , , | 9 Comments