Monthly Archives: June 2021

Happy tau day!

Posted on June 28, 2021 by Brent

Happy Tau Day! The Tau Manifesto by Michael Hartl is now available in print, if you’re in the market for a particularly nerdy coffee table book and conversation starter: I also wrote about Tau Day ten years ago; see that … Continue reading →

Posted in famous numbers, links | Tagged , , | 1 Comment

Challenge: area of a parallelogram

Posted on June 24, 2021 by Brent

And now for something completely different!1 Suppose we have a parallelogram with one corner at the origin, and two adjacent corners at coordinates and . What is the area of the parallelogram? There are probably many different ways to derive … Continue reading →

Posted in challenges, geometry | Tagged , | 18 Comments

Post without words #32

Posted on June 8, 2021 by Brent
Posted in posts without words | Tagged , , , | 8 Comments