COVID-19 Statistics

Here are a few summary statistics of the COVID-19 pandemic. Data is from worldometers (worldwide data) and the NYT (U.S. and Arizona data). These plots will be updated approximately daily, at least until the pandemic is over. Click on the … Continue reading

Musings on $\pi$ Day

1. The Ubiquity of $\pi$      or, Life, the Universe, and Everything: A Simple Statement of Fact $\pi$ is everywhere you look. It is even the case that there is $\pi$ in the sky. We need $\pi$ in order to live … Continue reading

Thor’s Day Morning Mathematical Musings

Have you had your caffeine injection yet? Well, then, here are three puzzles (with answers, but the answers are not helpful!): Can you completely mix a mug of coffee, such that, at every point inside the mug, the coffee at that … Continue reading

At the moment, The Donald leads nationally among Republicans, with 29.8% favorability. Roughly 30% of polled Republicans currently favor Trump over the rest of the Republican Field of Clowns. People argue that 30 percent is not terribly impressive. Are they right? … Continue reading

math test

Here’s how to get MathJax up and running for your blog: part I, part II. The three tests below are text lifted from elsewhere. Test 1 Consider first what we shall call the direct geometry case, in which we use only the zenith … Continue reading

How I Do MathJax II. Example

To render equations in a WordPress blog, you have several options. The most aesthetically pleasing is MathJax. An earlier post tells you how to install MathJax for your WordPress site. This second post shows a few pointers by way of an example (you’ll probably want … Continue reading

How I Do MathJax I. Installation

I use equations. To enable equations in a WordPress blog, there are several options. The most comprehensive—and aesthetically pleasing—is to use MathJax. This post tells you how to install MathJax for your WordPress site. A second post has a few pointers. Here … Continue reading