Wang's four-scroll oscillator test 5 https://video.joostrekveld.net/videos/watch/084ad481-19f9-4020-8701-10c0295733e0 Experiments from 2017 exploring Wang's chaotic four-scroll oscillator on an EAI TR-48 analog computer from 1963 in rep-op mode. Parameter 'a' is being varied from 6.0 to 2.0 while 'b' is kept at 1.0. The trajectory is manually rotated around the X-axis from time to time, to get a sense of the 3d shape of the attractor. The TR-48 is not really designed for these speeds, so the calculation and parameter values are less precise than usual, due to the difference in frequency response of the various modules. The equations are: ẋ = x − yz ẏ = x − by + xz ż = −az + xy Thu, 03 Sep 2026 03:05:23 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://video.joostrekveld.net Wang's four-scroll oscillator test 5 https://video.joostrekveld.net/lazy-static/avatars/e35ea6d1-b888-421d-b49f-14ee9051e5ed.jpg https://video.joostrekveld.net/videos/watch/084ad481-19f9-4020-8701-10c0295733e0 All rights reserved, unless otherwise specified in the terms specified at https://video.joostrekveld.net/about and potential licenses granted by each content's rightholder.