16 January 2021

• 22:5322:53, 16 January 2021 diff hist +1 m 2018 AMC 12A Problems/Problem 22 →Solution 3 (Vectors)
• 22:4822:48, 16 January 2021 diff hist +2,185 2018 AMC 12A Problems/Problem 22 →Solution 2 (No DeMoivre's)

30 July 2020

• 17:5217:52, 30 July 2020 diff hist +1,951 2016 AIME II Problems/Problem 8 No edit summary

18 October 2017

• 21:1721:17, 18 October 2017 diff hist +504 Force No edit summary
• 21:0921:09, 18 October 2017 diff hist +1,220 Electromagnetic spectrum No edit summary
• 20:5220:52, 18 October 2017 diff hist −4 Dynamical Systems No edit summary current

3 June 2015

• 21:5421:54, 3 June 2015 diff hist −3 1987 AHSME Problems/Problem 16 →Problem