User contributions
- 12:53, 3 November 2021 (diff | hist) . . (+148) . . Talk:2117: Differentiation and Integration
- 22:23, 30 July 2021 (diff | hist) . . (+4) . . 2496: Mine Captcha (Please learn that vision classifiers exist, can outcompete us, and we trained them to with captchas, and continue to use the same captchas.)