https://tube.cosmicflow.space/videos/watch/7e533d7e-e6ab-4eb9-aff8-bfc87eb89247 This lecture is part of an online undergraduate course on complex analysis. This is a replacement for a previous video, correcting some minor typos. We show how to use the residue calculus to sum series, such as Euler's series 1/1^2 + 1/2^2+ ... Solution to exercise in rot 13: cv phorq bire guvegl gjb For the other lectures in the course see https://www.youtube.com/playlist?list=PL8yHsr3EFj537_iYA5QrvwhvMlpkJ1yGN Sun, 18 Oct 2026 04:15:43 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://tube.cosmicflow.space https://tube.cosmicflow.space/lazy-static/avatars/8891227d-e60f-40aa-88be-4c856c6a73dc.png https://tube.cosmicflow.space/videos/watch/7e533d7e-e6ab-4eb9-aff8-bfc87eb89247 All rights reserved, unless otherwise specified in the terms specified at https://tube.cosmicflow.space/about and potential licenses granted by each content's rightholder.