# Feature Column Authors

# The Archive

### 2022 (1)

- Saturday, January 1, 2022 - Rook Polynomials: A Straight-Forward Problem (2022, Discrete Math and Combinatorics, Thomas Morrill)

### 2021 (12)

- Wednesday, December 1, 2021 - Alan Turing and the Countability of Computable Numbers (2021, Adam A. Smith, History of mathematics, Math and Technology, Real and Complex Analysis)
- Monday, November 1, 2021 - What is a prime, and who decides? (2021, Algebra and Number Theory, Courtney Gibbons)
- Friday, October 1, 2021 - Decomposition (2021, Algebra and Number Theory, Discrete Math and Combinatorics, Joseph Malkevitch)
- Wednesday, September 1, 2021 - Meet me up in space! (2021, David Austin, Math and Technology, Math and the Sciences)
- Sunday, August 1, 2021 - Principal Component Analysis – Three Examples and some Theory (2021, Mathematics and Biology, Probability and Statistics, Tony Phillips)
- Tuesday, June 1, 2021 - The Once and Future Feature Column (2021, History of mathematics, Ursula Whitcher)
- Saturday, May 1, 2021 - An epidemic is a sequence of random events (2021, Bill Casselman, Mathematics and Biology, Probability and Statistics)
- Wednesday, March 31, 2021 - In Praise of Collaboration (2021, History of mathematics, Joseph Malkevitch)

### 2020 (12)

- Saturday, August 1, 2020 - Remembering Richard Kenneth Guy: Games and Taking on Mountains (2020, Joseph Malkevitch)

### 2019 (12)

- Tuesday, December 31, 2019 - Étienne Ghys and Josh Leys: Column Archive (Archive, Étienne Ghys, Josh Leys)