3d Representation of Dog Chase

Not what it sounds like. The four dog problem from Steve Strogatz: N dogs start in the corners of a regular N-gon. Each runs directly toward the dog on its left. How far do they run before colliding? — Steven Strogatz (@stevenstrogatz) October 27, 2015 Here is how it was used in my class. Halfway […]

The Last Seat : Car Talk Puzzler

Yet another great car talk puzzler, The Last Seat: RAY: You’re one of a hundred people standing in line to get onto an airplane that has 100 seats. There’s a seat for every person who’s in line, and each of you has a boarding pass for your assigned a seat. The first person to walk […]

Visualization of a Function Through Time

(This post demonstrates the math behind the creation of some unusual math art. I got the idea from this tumblr post which I don’t even think works like this. But it was the inspiration behind the pictures.) Take this function: f(x) = x^2 + a*cos(ax). When you take values of a between 0 and 8 and […]

Madeup and Calculus

The madeup language for creating 3d models came out a week ago for the kickstarter backers. There is more information about the computer programming language found at the kickstarter page. It’s been a lot of fun to play with but looking at it through the lens of being able to create calculus 3d solids has been […]

BetterQs Blog

At TMC 2015 I attended a fantastic session by Rachel Kernodle that encouraged us to improve our questioning in class. I took this goal to heart, in fact, it ended up being my “One TMC15 Thing” that I’d like to work on. #1TMCthing Improve my questioning in class, have students interpret each other’s answers before […]

Plots of the Exponential Function over the Complex Plane

I was inspired by this tumblr post, and this wikimedia page to make some pretty pictures of the exponential function over the complex plane. Go there to read in more detail how the images were created, including how the colors were created. Code is found here. Hi definition images are found here. Update: Here’s what […]

Tracking Venus and Earth over 8 years

I came about this tweet: If you track the relative positions of Earth and Venus over an 8 year period, this is the resulting pattern. pic.twitter.com/lOoeUtAXH2 — SciencePorn (@SciencePorn) May 16, 2015 It reminded me strongly of the waning moon and linear mod art projects that I’ve been playing with. For instance, here’s a screenshot […]