User contributions
- 19:24, 27 February 2019 (diff | hist) . . (0) . . m 2117: Differentiation and Integration (→Integration)
- 19:19, 27 February 2019 (diff | hist) . . (+618) . . m 2117: Differentiation and Integration (→Differentiation)
- 20:30, 18 September 2017 (diff | hist) . . (+289) . . m Talk:1891: Obsolete Technology