Author Archives: Andy Rundquist

About Andy Rundquist

Professor of physics at Hamline University in St. Paul, MN

License plate math game

I do lots of things while I ride my bike to work to pass the time. Recently I’ve invented this game (surely others have too): Pick a target integer (I start at zero and move up by one in each … Continue reading

Posted in fun, math | 2 Comments

Book editor in Google Apps Script

I’m teaching a class in the fall called “Web App Development with Google Apps Script” that I think I want to write my own book for. I started doing some of that using wikibooks, but I was frustrated at some … Continue reading

Posted in Google Apps Script, syllabus creation, teaching, technology | 2 Comments

Programming for me vs you

I almost titled this “I hate ‘input’ and ‘print’” but that’s not really true. I’m teaching a course called “Introduction to Computational Data Science” this semester, just like I did last spring, and even with only two days under my … Continue reading

Posted in programming, teaching | 6 Comments

Catenary with Lagrange Multipliers

The catenary is the shape of a hanging chain supported at both ends in a constant gravitational field (ie normal life). Recently Rhett Allain has been doing some great work using both python and analytical results to show how you … Continue reading

Posted in mathematica, physics | Leave a comment

Synchronous dashboard with audio and breakouts

I teach again in just a week and have set a goal for myself to make an app that I can use in my synchronous meetings. As of this weekend, I think it’s working (see github repo here)! You can … Continue reading

Posted in Google Apps Script, syllabus creation, teaching, technology | 2 Comments

Physics Teachers Are Awesome

I’ve started a project that brings me joy. I’m hoping to help spread that around! I was looking around for ways that I could support physics teachers who were working so hard to teach during this pandemic. I was reflecting … Continue reading

Posted in glodal physics department, online class, physics, screencasting, syllabus creation, teaching, twitter | 4 Comments

Boltzmann to Blackbody to Electoral College

Ok, I know that’s a weird title, but bear with me, this has some fun stuff in it, including some things I still need help with. The basic idea is that Planck’s solution to Blackbody radiation is an interesting way … Continue reading

Posted in physics, programming, teaching | Tagged , , | 1 Comment

Back channels

I’ve been thinking a lot about back channels in meetings and classes lately. Some of my thinking has been seeded by some fun and interesting experiences recently and some has been due to some new tech I’ve seen. The upshot: … Continue reading

Posted in Uncategorized | Tagged | 4 Comments

Meeting styles

I, like most people, go to a lot of meetings. I’ve developed a style that I like to use when running meetings but I realize that I can always get better. I thought I’d put down some of the things … Continue reading

Posted in Uncategorized | Tagged | 2 Comments

Fast Quantum Tunneling Method

This post describes a way to calculate tunneling probabilities for one dimensional quantum barriers. This method is easy to code up, and is very fast. Consider the following barrier. If your energy is less than 3 eV, you’ll just reflect … Continue reading

Posted in mathematica, physics, research, teaching | Leave a comment