Odds and Ends

Lin McMullin’s Theorem – tripping over the Golden Ratio and More Gold

My Favorite Function – A graphing calculator exploration.

My New Calculator – The Curta Calculator

微积分 – My China Trip

π from Collisions – an interesting video

Slide Rules – A calculator without batteries

Spiral Slide Rule – A more accurate model

Quadratic Formula or Not?

Testing, but Not for Calculus – On false positives and COVID testing

No Foolin’ – Truncatable primes

What’s Your Favorite? What’s your favorite equation? A survey.