QC (in Berlin 7/29-??? w/ COVID )@QiaochuYuanReplying to @uberstuberelliptic, parabolic, hyperbolic1:36 AM · Sep 19, 2020·Twitter for iPad3 Likes
QC (in Berlin 7/29-??? w/ COVID )@QiaochuYuan·Sep 19, 2020Replying to @QiaochuYuan and @uberstuberthis one maybe needs some explanation: https://golem.ph.utexas.edu/category/2016/09/euclidean_hyperbolic_and_ellip.html…1