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Meta
Author Archives: Brent
Making connections
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
Animated Sieve of Eratosthenes
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 diagrams, Eratosthenes, primes, sieve, visualization
11 Comments
Stars of the Mind’s Sky with Diagrams
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 art, diagrams, Haskell, polygon, star, visualization
9 Comments
Book review: Guesstimation 2.0
Guesstimation 2.0: Solving Today’s Problems on the Back of a NapkinLawrence Weinstein I got a review copy of this book, and initially decided I wasn’t going to review it—I hate those sorts of consulting-company-interview estimation problems, you know, like “what … Continue reading
Diagrams!
Over the past few years I’ve written quite a few posts with images generated by a library I (now along with many others) wrote. Most famously, this is how I created those factorization diagrams. But I’ve used it in many … Continue reading
Penrose tiles on my refrigerator!
I got some Penrose refrigerator magnets in the mail the other day! They look nice on my fridge, don’t you think? Here’s a close-up: (Unfortunately, since this was just a Kickstarter project there’s no way to order more at this … Continue reading
Posted in geometry, pattern, pictures
Tagged Kickstarter, magnet, penrose, refrigerator, tile
6 Comments
Book review: Lauren Ipsum
Lauren Ipsumstory by Carlos Bueno; illustrations by Ytaelena López I don’t quite remember how I first stumbled across the website for this little gem of a book, billing itself as “a story about computer science and other improbable things”. But … Continue reading
Posted in books, computation, review, teaching
Tagged Alice in Wonderland, computer science, fun, ideas, Ipsum, Lauren
1 Comment
Factorization diagram cards: help?
The other day I got a lovely email from Malke Rosenfeld thanking me for creating factorization diagrams and linking me to her blog post about “factor dominoes”: she printed out some factorization diagrams, glued them to cardstock, and used the … Continue reading
New “Chaos” videos from the makers of “Dimensions”
I just got an email from Jos Leys, one of the creators of the Dimensions video series (which I wrote about previously), announcing that they have released another video series, this time about Chaos, at http://www.chaos-math.org/en. I haven’t had a … Continue reading