Submissions from 2022
The Trigonometric Functions Through Their Origins: al-Biruni Does Trigonometry in the Shadows, Danny Otero (Mini-PSP)
The Trigonometric Functions Through Their Origins: Babylonian Astronomy and Sexagesimal Numeration, Danny Otero (Mini-PSP)
The Trigonometric Functions Through Their Origins: Hipparchus' Table of Chords, Danny Otero (Mini-PSP)
The Trigonometric Functions Through Their Origins: Ptolemy Finds High Noon in Chords of Circles, Danny Otero (Mini-PSP)
The Trigonometric Functions Through Their Origins: Regiomontanus and the Beginnings of Modern Trigonometry, Danny Otero (Mini-PSP)
The Trigonometric Functions Through Their Origins: Varahamihira and the Poetry of Sines, Danny Otero (Mini-PSP)
Submissions from 2019
How to Calculate pi: Buffon's Needle (Non-calculus version), Dominic Klyve (Mini-PSP)
Completing the Square: From the Roots of Algebra, Danny Otero (Mini-PSP)
Solving Equations and Completing the Square: From the Roots of Algebra, Danny Otero
Submissions from 2017
A Genetic Context for Understanding the Trigonometric Functions, Danny Otero
